This paper summarizes the negative effects on geological environment caused by groundwater exploitation and its distribution. There are seven main types of the geological environment negative effects, which are genera...This paper summarizes the negative effects on geological environment caused by groundwater exploitation and its distribution. There are seven main types of the geological environment negative effects, which are generally as follows:(1) Constant decrease of groundwater level is mainly distributed in China(East Asia), India(South Asia), Tajikistan(Central Asia) and Saudi Arabia(West Asia);(2) land subsidence occurs mainly in eastern plains of East Asia and west Siberian Plain of North Asia;(3) seawater intrusion occurs mainly in China, Japan and South Korea in East Asia, Philippines and Indonesia in Southeast Asia, the Indian coastal areas in South Asia;(4) groundwater level decline caused by groundwater exploitation in oil fields;(5) mining collapse is mainly in 50° to 70° north latitude band;(6) the total area of karst collapse in China of East Asia is as much as 197.05 km^2; and(7) ground fracture is mainly distributed in the North China Plain, Fenwei Plain and the Yangtze River Delta. Asia can be divided into 6 zones in terms of the geological environment negative effect caused by groundwater exploitation. According to analysis, with the increasing intensity of human activities, geological environment issues become more and more serious, therefore it is vital to control the human activities within the scope of 5× 10~5 people/km^2 to 9.9× 10~5 people/km^2 for the effective control of the size of the affected area by geological environment problems.展开更多
To illuminate the spatio-temporal variation characteristics and geochemical driving mechanism of soil pH in the Nenjiang River Basin,the National Multi-objective Regional Geochemical Survey data of topsoil,the Second ...To illuminate the spatio-temporal variation characteristics and geochemical driving mechanism of soil pH in the Nenjiang River Basin,the National Multi-objective Regional Geochemical Survey data of topsoil,the Second National Soil Survey data and Normalized Difference Vegetation Index(NDVI)were analyzed.The areas of neutral and alkaline soil decreased by 21100 km^(2)and 30500 km^(2),respectively,while that of strongly alkaline,extremely alkaline,and strongly acidic soil increased by 19600 km^(2),18200 km^(2),and 15500 km^(2),respectively,during the past 30 years.NDVI decreased with the increase of soil pH when soil pH>8.0,and it was reversed when soil pH<5.0.There were significant differences in soil pH with various surface cover types,which showed an ascending order:Arbor<reed<maize<rice<high and medium-covered meadow<low-covered meadow<Puccinellia.The weathering products of minerals rich in K_(2)O,Na_(2)O,CaO,and MgO entered into the low plain and were enriched in different parts by water transportation and lake deposition,while Fe and Al remained in the low hilly areas,which was the geochemical driving mechanism.The results of this study will provide scientific basis for making scientific and rational decisions on soil acidification and salinization.展开更多
Geological environment effects caused by the control of groundwater exploitation in Jiangyin city are discussed thoroughly, including the dynamic variation of groundwater levels and quality and the development of land...Geological environment effects caused by the control of groundwater exploitation in Jiangyin city are discussed thoroughly, including the dynamic variation of groundwater levels and quality and the development of land sub-sidence and ground fissures. According to the dynamic characteristics of groundwater levels, some advice about groundwater exploitation is offered. Our research will provide a basis for using groundwater resources and the preven- tion of geological disasters in Jiangyin city and the Suzhou-Wuxi-Changzhou area. The following results are deduced from our research. First, groundwater levels vary with the exploitation of groundwater in Jiangyin city and are affected by hydrogeological conditions. The groundwater levels remained rather stable before and after the implementation of control of groundwater exploitation in the northwest of Jiangyin city along the Yangtze River. A suitable level of exploitation should be allowed. In the southeast, the speed of recovery of the groundwater level has been rather rapid after the control of exploitation. We conclude that groundwater might be exploited locally after the groundwater level has recovered. In the southwest, the speed of recovery of the groundwater level is rather slow and exploitation of ground-water should be prohibited. Second, groundwater quality is stable in Jiangyin city and the contents of the main chemical indices of groundwater varied only slightly before and after the control of exploitation. Third, after controlling the exploitation, the speed of land subsidence has clearly slowed down and the development of ground fissures has been controlled effectively.展开更多
Suitability evaluation of urban geological environment is an important basic work in city planning and construction. With Zhengzhou-Kaifeng area as the research area, this paper discusses AHP and fuzzy comprehensive e...Suitability evaluation of urban geological environment is an important basic work in city planning and construction. With Zhengzhou-Kaifeng area as the research area, this paper discusses AHP and fuzzy comprehensive evaluation methods to classify impact factors at different levels, makes a mixing evaluation of the basic factors and comprehensive factors so as to correct the uncertainty of the weight of the basic factors in the initial evaluation and establish the corresponding evaluation index system, and carries out urban geological environment suitability evaluation in study area. Furthermore, this paper partitions the suitability of the research area according to evaluation results into five zones. It puts forward opinions and suggestions for the construction of research area, which have certain practical significances.展开更多
In this paper, the urban geosciences with the geological environment of Xi'an as an example are studied in detail. A corresponding model is employed to make a comprehensive evaluation of the land-use capacity, pr...In this paper, the urban geosciences with the geological environment of Xi'an as an example are studied in detail. A corresponding model is employed to make a comprehensive evaluation of the land-use capacity, providing a scientific base for the controlling measures of the urban land-use project.展开更多
Fuzzy mathematics comprehensive evaluation method is used to evaluate the geological environment suitability of rural urbanization in Qingdao City,China.A total of 5 first-level evaluation factors are selected,includi...Fuzzy mathematics comprehensive evaluation method is used to evaluate the geological environment suitability of rural urbanization in Qingdao City,China.A total of 5 first-level evaluation factors are selected,including environmental geological condition,geological resources,engineering geological condition,geological disaster and environmental geological problem,and human engineering activity.And there are 27 second-level evaluation factors,such as topography,land type and vegetation,nature reserve,water source protection area,groundwater quality division,and major engineering project.Qingdao City is divided into four districts of suitable area,relatively suitable area,moderately suitable area and relatively unsuitable area of ecological environment.And their characteristics are introduced.Suggestions for the developing direction of urban construction are put forward.Region of Laoshan District lying to the west of the Shilaoren is suitable to set up high-rise building;west Hongshiya may establish a waste landfill site;Jiaozhou Bay,the downstream of Dagu River,and Jihongtan Reservoir should be built as the key geological environment protection area and water source protection area.And the north Hongdao should be strictly monitored in order to control the expansion of urban construction to Jihongtan Reservoir.Mocheng District and the area north of it,Jiaozhou District and the area east of it are the ideal urban construction development areas in Qingdao City in the future.展开更多
Based on previous evaluating methods, a new method which combines GIS with Fussy Clustering algorithm is proposed and applied in evaluating the engineering geological environment of the research area of XuZHou City in...Based on previous evaluating methods, a new method which combines GIS with Fussy Clustering algorithm is proposed and applied in evaluating the engineering geological environment of the research area of XuZHou City in this paper. By analyzing the characteristics and formation of engineering geological environment,the major problems are discussed, including stability of basement rock, sandy soil liquefaction and cultural stratum.According to effecting factors of these problems, the stability of every engineering geological problem in the worked area is classified into different classes. Then, the Fussy Clustering method is used in assessing all conditions of engineering geological environment. Finally, the evaluation is fulfilled in the whole studied area. The calculating result shows the method is feasible.展开更多
The geological environment is important for the development of coal enterprises. In the Guqiao coalmine, the information of coal mining subsidence, terrain landform, coal gangue utilization, mine water treatment and s...The geological environment is important for the development of coal enterprises. In the Guqiao coalmine, the information of coal mining subsidence, terrain landform, coal gangue utilization, mine water treatment and several on-site investigations have been analyzed. It holds that its geological environment can be evaluated from three aspects, i.e., geological disasters, terrain and landform destruction, and influence on water and soil environment. The results show that mining activities have serious impacts on geological disasters and terrain landform, while lighter impacts on the water and soil envir</span><span style="font-family:Verdana;">onment. According to the research results, a set of corresponding gove</span><span style="font-family:Verdana;">rnance strategies are given. The findings can provide theoretical support for the geological environmental protection and restoration of the Guqiao coalmine.展开更多
Presented a study on the design and implementation of spatial data modelingand application in the spatial data organization and management of a coalfield geologicalenvironment database.Based on analysis of a number of...Presented a study on the design and implementation of spatial data modelingand application in the spatial data organization and management of a coalfield geologicalenvironment database.Based on analysis of a number of existing data models and takinginto account the unique data structure and characteristic, methodology and key techniquesin the object-oriented spatial data modeling were proposed for the coalfield geological environment.The model building process was developed using object-oriented technologyand the Unified Modeling Language (UML) on the platform of ESRI geodatabase datamodels.A case study of spatial data modeling in UML was presented with successful implementationin the spatial database of the coalfield geological environment.The modelbuilding and implementation provided an effective way of representing the complexity andspecificity of coalfield geological environment spatial data and an integrated managementof spatial and property data.展开更多
In order to assess the geological environment impact of a city landfill by the Yangtze River, soils from different depths in the dumpsite were sampled and analyzed. It was found that pollutants content at the site was...In order to assess the geological environment impact of a city landfill by the Yangtze River, soils from different depths in the dumpsite were sampled and analyzed. It was found that pollutants content at the site was distinctly higher than that in nearby environments. The content of heavy metals, such as Cd, Hg, As, Pb and Cu, reduces as depth increases; the content of elements F, Cl and N is the contrary. Pollutants migration driven by underground water flow was analyzed, considering the hydro-geological conditions of the site. It is believed that, due to leaching after rainfall infiltration, pollutants in the garbage layer migrates deeper, the cohesive soil in the underlying surface prevents them from spreading to the deeper aquifer; additionally, the high pressure tolerance of the deep groundwater is a key factor in preventing pollutants from entering the aquifer. Furthermore, human control has reduced the annual fluctuation range of water level in nearby rivers, weakening the hydrodynamic relations with phreatic water, and thus reducing the spreading of pollutants to nearby surface waters.展开更多
With the approach of the 45th World Earth Day,China＇s Ministry of Land and Resources issued the status of the Chinese geological survey and environments on 22nd April 2013.Regional geological survey in 2013 achieved ...With the approach of the 45th World Earth Day,China＇s Ministry of Land and Resources issued the status of the Chinese geological survey and environments on 22nd April 2013.Regional geological survey in 2013 achieved new results-（why was oceanic in twice？） polar and oceanic expedition were fully completed,a national census of geography was begun,and the security capacity of mapping geographic information was enhanced.A new idea for integrated geological survey and scientific research was proposed to enhance marine geological surveys and to improve service capabilities.展开更多
Kunming Basin locates middle of Yunnan altiplano and has a particularity in geography,topographic and geological environment.With the urban dilation quickly,add the reason of the unreasonable city layout,conflicts bet...Kunming Basin locates middle of Yunnan altiplano and has a particularity in geography,topographic and geological environment.With the urban dilation quickly,add the reason of the unreasonable city layout,conflicts between environment and urban resources consumption become shrill increasingly.It is human being activities that lead to vulnerability and depravation of geological environment in local.Take a few examples on geological environment to expatiate relationship between urban construction and geological environment carrying capacity,and find a way how to make a better plan for urban sustainable development to achieve new balance between man and nature in local.展开更多
Mineral resources are important resources in China's development process. With the rapid development of China's economy and the increase of market demand for mineral resources, more and more mineral resources ...Mineral resources are important resources in China's development process. With the rapid development of China's economy and the increase of market demand for mineral resources, more and more mineral resources have been mined in recent years. Disorderly and large-scale mining operations will directly destroy the geological environment of the mine. If this mining situation continues, it will not only cause the waste of mineral resources, but also seriously affect the national ecological environment construction. In view of this situation, the relevant departments of our country should pay attention to the protection and management of the mine geological environment, and perfect it, correct the defects in the exploitation of mineral resources in a timely manner, formulate adequate plans and systems for the exploitation of resources, and reduce the damage to the mine geological environment while ensuring the utilization of resources. New technologies in the field of mine geological protection and management are also studied. This paper analyzes the relevant schemes of mine geological environment protection and management.展开更多
Over the years, through the development of mine geological environment protection and management work, the management level of mine geological environment in our country has been greatly improved and many positive gui...Over the years, through the development of mine geological environment protection and management work, the management level of mine geological environment in our country has been greatly improved and many positive guiding roles have been played in the utilization and protection of various environmental resources. However, with the continuous advancement of the relevant national mine geological environment protection and governance policies, the geological environment protection and governance work carried out in many areas can no longer meet the new practical needs. It is urgent to carry out re-adjustment to better improve the effect of environmental protection and governance. This paper will analyze the current situation of mine resources development, geological environment problems, mine geological environment protection and management content, and discuss the possible safeguard measures combined with the actual situation in our country, hoping to bring valuable experience and reference for relevant industry personnel.展开更多
With the rapid development of China's economy, the speed of China's infrastructure construction is changing with each passing day. Infrastructure includes municipal properties, roads, bridges, tunnels and so o...With the rapid development of China's economy, the speed of China's infrastructure construction is changing with each passing day. Infrastructure includes municipal properties, roads, bridges, tunnels and so on, which are closely related to people's lives and the development of China's economy. In infrastructure construction, geological survey and environmental survey and analysis are the premise guarantee for the construction quality of infrastructure projects. There are more or less difficult points in the whole system of geological survey, such as the defects of foundation, the application of various survey techniques, hydrological survey and geological evaluation. This paper will start with the application of survey technology and geological evaluation to provide basic support analysis for engineering construction.展开更多
The hydrological characteristics of the reconstructed area also have some impact on the service life of the reconstructed buildings. Only by paying attention to the important role of engineering investigation in water...The hydrological characteristics of the reconstructed area also have some impact on the service life of the reconstructed buildings. Only by paying attention to the important role of engineering investigation in water conservancy projects can we ensure the effective quality of geotechnical engineering in water conservancy projects. With the continuous development of Chinas economy, the effective geological survey of water conservancy projects can ensure the normal development of the project, discover the hidden dangers of engineering geological safety in time, and realize the comprehensive monitoring of the geological and water environment. Does a good job of protection work to ensure the normal implementation of the project. Through the geological investigation of water conservancy projects and the necessary engineering geological environment analysis, it provides an effective reference data for the reasonable geological investigation of water conservancy projects.展开更多
In recent years, in order to meet the basic needs of social and economic development for mineral resources, China has gradually increased the utilization of mineral resources. However, the mineral resources in China a...In recent years, in order to meet the basic needs of social and economic development for mineral resources, China has gradually increased the utilization of mineral resources. However, the mineral resources in China are very scattered, and most of the non-rare mineral resources are in the hands of enterprises. Therefore, the exploitation of mineral resources has not been effectively controlled, and there is an unreasonable phenomenon of mining. Unreasonable mining of coal mines does great harm to the whole mine, which not only damages the geological environment of the mining area, but also increases the occurrence rate of mine accidents. Combined with the actual situation of mining development in China, this paper makes a simple analysis of common geological disasters in coal mines and the basic principles of mine geological protection, and discusses how to prevent and protect the geological environment of mines.展开更多
Studying the roles of geological environment and human activities in shaping the ecological environment can reveal the coupled mutual feedback among the geological environment,the ecological environment,and human acti...Studying the roles of geological environment and human activities in shaping the ecological environment can reveal the coupled mutual feedback among the geological environment,the ecological environment,and human activities.Understanding these processes is important for ensuring effective natural resource planning,ecological environment protection,and sustainable economic and social development.In this study,the Qinling Mountains were used as an example,and suitable indicators were selected to establish a mutual feedback system incorporating the geological environment,the ecological environment,and human activities.Moreover,various mathematical methods,namely,coupling degree,coupling coordination degree,Geodetector,and correlation and partial correlation analysis,were employed to explore the spatiotemporal evolution,coupling coordination,and driving mechanism of the interactions among these systems.The study results revealed the following:(1)Spatial heterogeneity in the interactions among the geological environment,the ecological environment,and human activities in the Qinling Mountains is high;the carrying capacity of the geological environment constrains the ecological environment quality and the scope of human activities.Besides,human activities modify,damage,and restore the eco-geological environment.(2)From 2000 to 2020,human activities in the Qinling Mountains were characterized by rapid economic development and urbanization.The scope of human activities has continued to increase,and the ecological environment has generally improved.(3)The area with a high coupling degree between geological environment sensitivity and ecological environment quality is located in the central mountainous area,indicating that the geological environment greatly affects the ecological environment in the area.The coupling coordination degree between human activity intensity and ecological environment quality reflects the imbalance in the spatial distributions of urbanization development and human-land conflicts in the Qinling Mountains.(4)Temperature and human activities are the main factors influencing the ecological environment quality in the Qinling Mountains,with positive and negative effects,respectively.In contrast,precipitation is not the main factor limiting the ecological environment quality in the Qinling Mountains.This study quantitatively revealed,for the first time,the coupled mutual feedback and interactions among the geological environment,the ecological environment,and human activities.The proposed research method offers new ideas for eco-geological assessment research,and the research results provide theoretical support for ecological environment protection in the Qinling Mountains from eco-geo-environmental perspectives.展开更多
Geomorphically, Huzhou, which is on the Yangtze River delta is characterized mainly by plains, with small hills. This paper presents a detailed analysis of the environmental geological hazards both natural and those i...Geomorphically, Huzhou, which is on the Yangtze River delta is characterized mainly by plains, with small hills. This paper presents a detailed analysis of the environmental geological hazards both natural and those incurred by human activities in different morphologic units. The authors point out that most of the regional environmental geological problems in the natural geologic-morphologic conditions, such as crustal stability, foundation of soft soil, soil waterlogging and soil erosion, have insignificant effects to the society, or related countermeasures of prevention and control have been adopted. But environmental geological problems incurred by human being's economic activities become more and more severe, for example, water and soil pollution and land subsidence in plain areas resulting from overexploitation of groundwater, and landslides, karst collapses and water and soil loss etc. caused by quarrying in hilly areas.展开更多
The main purpose of the present research is to study geological issues of urban areas in Bagh-e Malek in Khuzestan province of Iran and improving the municipal environment. The present research is an applied study in ...The main purpose of the present research is to study geological issues of urban areas in Bagh-e Malek in Khuzestan province of Iran and improving the municipal environment. The present research is an applied study in sake of nature and a descriptive-analytical survey in sake of method. Library and field method has been used in data collection. In field study, 325 citizens in Bagh-e Malek in 2015 were selected as sample group via sampling method well suited to sample size using questionnaire of citizens’ participation. Software SPSS and Excel are used to analyze data. Friedman test has been used to determine rank of each of selected indices for testing hypotheses and finding research. Results from Friedman test indicate that satisfaction with pedestrian passages has the highest mean with rank (9.90) and awareness from municipality’s rights has the lowest mean with rank (2.95).展开更多
基金supported by Geological Map of Groundwater Resources and Environment of China and Surrounding Areas(12120113014200)Series Maps of Karst Environment Geology of China and South East Asia(12120114006401,12120114006301)
文摘This paper summarizes the negative effects on geological environment caused by groundwater exploitation and its distribution. There are seven main types of the geological environment negative effects, which are generally as follows:(1) Constant decrease of groundwater level is mainly distributed in China(East Asia), India(South Asia), Tajikistan(Central Asia) and Saudi Arabia(West Asia);(2) land subsidence occurs mainly in eastern plains of East Asia and west Siberian Plain of North Asia;(3) seawater intrusion occurs mainly in China, Japan and South Korea in East Asia, Philippines and Indonesia in Southeast Asia, the Indian coastal areas in South Asia;(4) groundwater level decline caused by groundwater exploitation in oil fields;(5) mining collapse is mainly in 50° to 70° north latitude band;(6) the total area of karst collapse in China of East Asia is as much as 197.05 km^2; and(7) ground fracture is mainly distributed in the North China Plain, Fenwei Plain and the Yangtze River Delta. Asia can be divided into 6 zones in terms of the geological environment negative effect caused by groundwater exploitation. According to analysis, with the increasing intensity of human activities, geological environment issues become more and more serious, therefore it is vital to control the human activities within the scope of 5× 10~5 people/km^2 to 9.9× 10~5 people/km^2 for the effective control of the size of the affected area by geological environment problems.
基金supported by China Geological Survey(DD20230554,DD20230089)the Strategic Priority Research Program of the Chinese Academy of Science(XDA28020302)the funding project of Northeast Geological S&T Innovation Center of China Geological Survey(QCJJ2022-40).
文摘To illuminate the spatio-temporal variation characteristics and geochemical driving mechanism of soil pH in the Nenjiang River Basin,the National Multi-objective Regional Geochemical Survey data of topsoil,the Second National Soil Survey data and Normalized Difference Vegetation Index(NDVI)were analyzed.The areas of neutral and alkaline soil decreased by 21100 km^(2)and 30500 km^(2),respectively,while that of strongly alkaline,extremely alkaline,and strongly acidic soil increased by 19600 km^(2),18200 km^(2),and 15500 km^(2),respectively,during the past 30 years.NDVI decreased with the increase of soil pH when soil pH>8.0,and it was reversed when soil pH<5.0.There were significant differences in soil pH with various surface cover types,which showed an ascending order:Arbor<reed<maize<rice<high and medium-covered meadow<low-covered meadow<Puccinellia.The weathering products of minerals rich in K_(2)O,Na_(2)O,CaO,and MgO entered into the low plain and were enriched in different parts by water transportation and lake deposition,while Fe and Al remained in the low hilly areas,which was the geochemical driving mechanism.The results of this study will provide scientific basis for making scientific and rational decisions on soil acidification and salinization.
基金Projects 2002CB412702 supported by the Special Funds for Major State Basic Research Projects of China and KZCX2-YW-113the Special Funds ofResearch Innovation Projects of CAS
文摘Geological environment effects caused by the control of groundwater exploitation in Jiangyin city are discussed thoroughly, including the dynamic variation of groundwater levels and quality and the development of land sub-sidence and ground fissures. According to the dynamic characteristics of groundwater levels, some advice about groundwater exploitation is offered. Our research will provide a basis for using groundwater resources and the preven- tion of geological disasters in Jiangyin city and the Suzhou-Wuxi-Changzhou area. The following results are deduced from our research. First, groundwater levels vary with the exploitation of groundwater in Jiangyin city and are affected by hydrogeological conditions. The groundwater levels remained rather stable before and after the implementation of control of groundwater exploitation in the northwest of Jiangyin city along the Yangtze River. A suitable level of exploitation should be allowed. In the southeast, the speed of recovery of the groundwater level has been rather rapid after the control of exploitation. We conclude that groundwater might be exploited locally after the groundwater level has recovered. In the southwest, the speed of recovery of the groundwater level is rather slow and exploitation of ground-water should be prohibited. Second, groundwater quality is stable in Jiangyin city and the contents of the main chemical indices of groundwater varied only slightly before and after the control of exploitation. Third, after controlling the exploitation, the speed of land subsidence has clearly slowed down and the development of ground fissures has been controlled effectively.
基金supported by China Geological Survey Project“Urban Geological Survey of Central Plains Urban Agglomeration”(1212011089048)
文摘Suitability evaluation of urban geological environment is an important basic work in city planning and construction. With Zhengzhou-Kaifeng area as the research area, this paper discusses AHP and fuzzy comprehensive evaluation methods to classify impact factors at different levels, makes a mixing evaluation of the basic factors and comprehensive factors so as to correct the uncertainty of the weight of the basic factors in the initial evaluation and establish the corresponding evaluation index system, and carries out urban geological environment suitability evaluation in study area. Furthermore, this paper partitions the suitability of the research area according to evaluation results into five zones. It puts forward opinions and suggestions for the construction of research area, which have certain practical significances.
基金ThestudyissupportedbytheresearchprojectofUrbanConstructionCommitteeofShaanxiProvince (EngineeringGeologyMappingofXi’anCity) (No
文摘In this paper, the urban geosciences with the geological environment of Xi'an as an example are studied in detail. A corresponding model is employed to make a comprehensive evaluation of the land-use capacity, providing a scientific base for the controlling measures of the urban land-use project.
文摘Fuzzy mathematics comprehensive evaluation method is used to evaluate the geological environment suitability of rural urbanization in Qingdao City,China.A total of 5 first-level evaluation factors are selected,including environmental geological condition,geological resources,engineering geological condition,geological disaster and environmental geological problem,and human engineering activity.And there are 27 second-level evaluation factors,such as topography,land type and vegetation,nature reserve,water source protection area,groundwater quality division,and major engineering project.Qingdao City is divided into four districts of suitable area,relatively suitable area,moderately suitable area and relatively unsuitable area of ecological environment.And their characteristics are introduced.Suggestions for the developing direction of urban construction are put forward.Region of Laoshan District lying to the west of the Shilaoren is suitable to set up high-rise building;west Hongshiya may establish a waste landfill site;Jiaozhou Bay,the downstream of Dagu River,and Jihongtan Reservoir should be built as the key geological environment protection area and water source protection area.And the north Hongdao should be strictly monitored in order to control the expansion of urban construction to Jihongtan Reservoir.Mocheng District and the area north of it,Jiaozhou District and the area east of it are the ideal urban construction development areas in Qingdao City in the future.
文摘Based on previous evaluating methods, a new method which combines GIS with Fussy Clustering algorithm is proposed and applied in evaluating the engineering geological environment of the research area of XuZHou City in this paper. By analyzing the characteristics and formation of engineering geological environment,the major problems are discussed, including stability of basement rock, sandy soil liquefaction and cultural stratum.According to effecting factors of these problems, the stability of every engineering geological problem in the worked area is classified into different classes. Then, the Fussy Clustering method is used in assessing all conditions of engineering geological environment. Finally, the evaluation is fulfilled in the whole studied area. The calculating result shows the method is feasible.
文摘The geological environment is important for the development of coal enterprises. In the Guqiao coalmine, the information of coal mining subsidence, terrain landform, coal gangue utilization, mine water treatment and several on-site investigations have been analyzed. It holds that its geological environment can be evaluated from three aspects, i.e., geological disasters, terrain and landform destruction, and influence on water and soil environment. The results show that mining activities have serious impacts on geological disasters and terrain landform, while lighter impacts on the water and soil envir</span><span style="font-family:Verdana;">onment. According to the research results, a set of corresponding gove</span><span style="font-family:Verdana;">rnance strategies are given. The findings can provide theoretical support for the geological environmental protection and restoration of the Guqiao coalmine.
基金Supported by the Natural Science Foundation of Shanxi Province(2008011028-2)
文摘Presented a study on the design and implementation of spatial data modelingand application in the spatial data organization and management of a coalfield geologicalenvironment database.Based on analysis of a number of existing data models and takinginto account the unique data structure and characteristic, methodology and key techniquesin the object-oriented spatial data modeling were proposed for the coalfield geological environment.The model building process was developed using object-oriented technologyand the Unified Modeling Language (UML) on the platform of ESRI geodatabase datamodels.A case study of spatial data modeling in UML was presented with successful implementationin the spatial database of the coalfield geological environment.The modelbuilding and implementation provided an effective way of representing the complexity andspecificity of coalfield geological environment spatial data and an integrated managementof spatial and property data.
基金supported by the geological survey found project of Jiangsu Province(2011)425
文摘In order to assess the geological environment impact of a city landfill by the Yangtze River, soils from different depths in the dumpsite were sampled and analyzed. It was found that pollutants content at the site was distinctly higher than that in nearby environments. The content of heavy metals, such as Cd, Hg, As, Pb and Cu, reduces as depth increases; the content of elements F, Cl and N is the contrary. Pollutants migration driven by underground water flow was analyzed, considering the hydro-geological conditions of the site. It is believed that, due to leaching after rainfall infiltration, pollutants in the garbage layer migrates deeper, the cohesive soil in the underlying surface prevents them from spreading to the deeper aquifer; additionally, the high pressure tolerance of the deep groundwater is a key factor in preventing pollutants from entering the aquifer. Furthermore, human control has reduced the annual fluctuation range of water level in nearby rivers, weakening the hydrodynamic relations with phreatic water, and thus reducing the spreading of pollutants to nearby surface waters.
文摘With the approach of the 45th World Earth Day,China＇s Ministry of Land and Resources issued the status of the Chinese geological survey and environments on 22nd April 2013.Regional geological survey in 2013 achieved new results-（why was oceanic in twice？） polar and oceanic expedition were fully completed,a national census of geography was begun,and the security capacity of mapping geographic information was enhanced.A new idea for integrated geological survey and scientific research was proposed to enhance marine geological surveys and to improve service capabilities.
文摘Kunming Basin locates middle of Yunnan altiplano and has a particularity in geography,topographic and geological environment.With the urban dilation quickly,add the reason of the unreasonable city layout,conflicts between environment and urban resources consumption become shrill increasingly.It is human being activities that lead to vulnerability and depravation of geological environment in local.Take a few examples on geological environment to expatiate relationship between urban construction and geological environment carrying capacity,and find a way how to make a better plan for urban sustainable development to achieve new balance between man and nature in local.
文摘Mineral resources are important resources in China's development process. With the rapid development of China's economy and the increase of market demand for mineral resources, more and more mineral resources have been mined in recent years. Disorderly and large-scale mining operations will directly destroy the geological environment of the mine. If this mining situation continues, it will not only cause the waste of mineral resources, but also seriously affect the national ecological environment construction. In view of this situation, the relevant departments of our country should pay attention to the protection and management of the mine geological environment, and perfect it, correct the defects in the exploitation of mineral resources in a timely manner, formulate adequate plans and systems for the exploitation of resources, and reduce the damage to the mine geological environment while ensuring the utilization of resources. New technologies in the field of mine geological protection and management are also studied. This paper analyzes the relevant schemes of mine geological environment protection and management.
文摘Over the years, through the development of mine geological environment protection and management work, the management level of mine geological environment in our country has been greatly improved and many positive guiding roles have been played in the utilization and protection of various environmental resources. However, with the continuous advancement of the relevant national mine geological environment protection and governance policies, the geological environment protection and governance work carried out in many areas can no longer meet the new practical needs. It is urgent to carry out re-adjustment to better improve the effect of environmental protection and governance. This paper will analyze the current situation of mine resources development, geological environment problems, mine geological environment protection and management content, and discuss the possible safeguard measures combined with the actual situation in our country, hoping to bring valuable experience and reference for relevant industry personnel.
文摘With the rapid development of China's economy, the speed of China's infrastructure construction is changing with each passing day. Infrastructure includes municipal properties, roads, bridges, tunnels and so on, which are closely related to people's lives and the development of China's economy. In infrastructure construction, geological survey and environmental survey and analysis are the premise guarantee for the construction quality of infrastructure projects. There are more or less difficult points in the whole system of geological survey, such as the defects of foundation, the application of various survey techniques, hydrological survey and geological evaluation. This paper will start with the application of survey technology and geological evaluation to provide basic support analysis for engineering construction.
文摘The hydrological characteristics of the reconstructed area also have some impact on the service life of the reconstructed buildings. Only by paying attention to the important role of engineering investigation in water conservancy projects can we ensure the effective quality of geotechnical engineering in water conservancy projects. With the continuous development of Chinas economy, the effective geological survey of water conservancy projects can ensure the normal development of the project, discover the hidden dangers of engineering geological safety in time, and realize the comprehensive monitoring of the geological and water environment. Does a good job of protection work to ensure the normal implementation of the project. Through the geological investigation of water conservancy projects and the necessary engineering geological environment analysis, it provides an effective reference data for the reasonable geological investigation of water conservancy projects.
文摘In recent years, in order to meet the basic needs of social and economic development for mineral resources, China has gradually increased the utilization of mineral resources. However, the mineral resources in China are very scattered, and most of the non-rare mineral resources are in the hands of enterprises. Therefore, the exploitation of mineral resources has not been effectively controlled, and there is an unreasonable phenomenon of mining. Unreasonable mining of coal mines does great harm to the whole mine, which not only damages the geological environment of the mining area, but also increases the occurrence rate of mine accidents. Combined with the actual situation of mining development in China, this paper makes a simple analysis of common geological disasters in coal mines and the basic principles of mine geological protection, and discusses how to prevent and protect the geological environment of mines.
基金supported by the National Natural Science Foundation of China Special Project“Evolution of the Qinling Ecological Geological Environment System and Disaster Risk Control”(Grant No.42341101)。
文摘Studying the roles of geological environment and human activities in shaping the ecological environment can reveal the coupled mutual feedback among the geological environment,the ecological environment,and human activities.Understanding these processes is important for ensuring effective natural resource planning,ecological environment protection,and sustainable economic and social development.In this study,the Qinling Mountains were used as an example,and suitable indicators were selected to establish a mutual feedback system incorporating the geological environment,the ecological environment,and human activities.Moreover,various mathematical methods,namely,coupling degree,coupling coordination degree,Geodetector,and correlation and partial correlation analysis,were employed to explore the spatiotemporal evolution,coupling coordination,and driving mechanism of the interactions among these systems.The study results revealed the following:(1)Spatial heterogeneity in the interactions among the geological environment,the ecological environment,and human activities in the Qinling Mountains is high;the carrying capacity of the geological environment constrains the ecological environment quality and the scope of human activities.Besides,human activities modify,damage,and restore the eco-geological environment.(2)From 2000 to 2020,human activities in the Qinling Mountains were characterized by rapid economic development and urbanization.The scope of human activities has continued to increase,and the ecological environment has generally improved.(3)The area with a high coupling degree between geological environment sensitivity and ecological environment quality is located in the central mountainous area,indicating that the geological environment greatly affects the ecological environment in the area.The coupling coordination degree between human activity intensity and ecological environment quality reflects the imbalance in the spatial distributions of urbanization development and human-land conflicts in the Qinling Mountains.(4)Temperature and human activities are the main factors influencing the ecological environment quality in the Qinling Mountains,with positive and negative effects,respectively.In contrast,precipitation is not the main factor limiting the ecological environment quality in the Qinling Mountains.This study quantitatively revealed,for the first time,the coupled mutual feedback and interactions among the geological environment,the ecological environment,and human activities.The proposed research method offers new ideas for eco-geological assessment research,and the research results provide theoretical support for ecological environment protection in the Qinling Mountains from eco-geo-environmental perspectives.
文摘Geomorphically, Huzhou, which is on the Yangtze River delta is characterized mainly by plains, with small hills. This paper presents a detailed analysis of the environmental geological hazards both natural and those incurred by human activities in different morphologic units. The authors point out that most of the regional environmental geological problems in the natural geologic-morphologic conditions, such as crustal stability, foundation of soft soil, soil waterlogging and soil erosion, have insignificant effects to the society, or related countermeasures of prevention and control have been adopted. But environmental geological problems incurred by human being's economic activities become more and more severe, for example, water and soil pollution and land subsidence in plain areas resulting from overexploitation of groundwater, and landslides, karst collapses and water and soil loss etc. caused by quarrying in hilly areas.
文摘The main purpose of the present research is to study geological issues of urban areas in Bagh-e Malek in Khuzestan province of Iran and improving the municipal environment. The present research is an applied study in sake of nature and a descriptive-analytical survey in sake of method. Library and field method has been used in data collection. In field study, 325 citizens in Bagh-e Malek in 2015 were selected as sample group via sampling method well suited to sample size using questionnaire of citizens’ participation. Software SPSS and Excel are used to analyze data. Friedman test has been used to determine rank of each of selected indices for testing hypotheses and finding research. Results from Friedman test indicate that satisfaction with pedestrian passages has the highest mean with rank (9.90) and awareness from municipality’s rights has the lowest mean with rank (2.95).
