Rural domestic sewage treatment is critical for environmental protection.This study defines the spatial pattern of villages from the perspective of rural sewage treatment and develops an integrated decision-making sys...Rural domestic sewage treatment is critical for environmental protection.This study defines the spatial pattern of villages from the perspective of rural sewage treatment and develops an integrated decision-making system to propose a sewage treatment mode and scheme suitable for local conditions.By considering the village spatial layout and terrain factors,a decision tree model of residential density and terrain type was constructed with accuracies of 76.47%and 96.00%,respectively.Combined with binary classification probability unit regression,an appropriate sewage treatment mode for the village was determined with 87.00%accuracy.The Analytic Hierarchy Process(AHP),combined with the Technique for Order Preference(TOPSIS)by Similarity to an Ideal Solution model,formed the basis for optimal treatment process selection under different emission standards.Verification was conducted in 542 villages across three counties of the Inner Mongolia Autonomous Region,focusing on the standard effluent effect(0.3773),low investment cost(0.3196),and high standard effluent effect(0.5115)to determine the best treatment process for the same emission standard under different needs.The annual environmental and carbon emission benefits of sewage treatment in these villages were estimated.This model matches village density,geographic feature,and social development level,and provides scientific support and a theoretical basis for rural sewage treatment decision-making.展开更多
Flash droughts(FDs)develop quickly and can rapidly deplete soil moisture,posing significant threats to agriculture and pastoral systems.To investigate the spatiotemporal characteristics and development mechanisms of F...Flash droughts(FDs)develop quickly and can rapidly deplete soil moisture,posing significant threats to agriculture and pastoral systems.To investigate the spatiotemporal characteristics and development mechanisms of FDs in Inner Mongolia,China,and to assess the roles of key meteorological drivers in driving soil moisture variability,FD events were identified using root-zone soil moisture data during the growing seasons from 1982 to 2022.The results indicate the presence of five FD hotspot regions,located in the southern Alxa Plateau,the Hetao Plain in Bayannur,the northwestern Xilingol Plain,the western Liaohe River Plain,and the northern Da Hinggan Ling.Over 41 years,FDs occurred on average 7.44 events across the study area,with a mean duration of 9.17 pentads(1 pentad equals 5 days).The duration exhibited a significant increasing trend of 0.39 pentads/10 years.FD onsets primarily lasted for 2-3 pentads.During the FD development phase,precipitation and evapotranspiration decreased while temperature,potential evapotranspiration,incoming solar radiation,and vapor pressure deficit increased.The dominant meteorological drivers of FD development exhibited notable spatial heterogeneity across hotspot regions,and vapor pressure deficit consistently was the most influential factor.These findings improve the understanding of climate drivers at different stages of FD development and provide scientific support for early warning and prevention of droughts in Inner Mongolia.展开更多
This study investigates climate-and human-induced hydrological changes in the Zavkhan River-Khyargas Lake Basin,a highly sensitive arid and semi-arid region of Central Asia.Using Mann-Kendall,innovative trend analysis...This study investigates climate-and human-induced hydrological changes in the Zavkhan River-Khyargas Lake Basin,a highly sensitive arid and semi-arid region of Central Asia.Using Mann-Kendall,innovative trend analysis,and Sen's slope estimation methods,historical climate trends(1980-2100)were analyzed,while land cover changes represented human impacts.Future projections were simulated using the MIROC model with Shared Socioeconomic Pathways(SSPs)and the Tank model.Results show that during the past 40 years,air temperature significantly increased(Z=3.93^(***)),while precipitation(Z=-1.54^(*))and river flow(Z=-1.73^(*))both declined.The Khyargas Lake water level dropped markedly(Z=-5.57***).Land cover analysis reveals expanded cropland and impervious areas due to human activity.Under the SSP1.26 scenario,which assumes minimal climate change,air temperature is projected to rise by 2.0℃,precipitation by 21.8 mm,and river discharge by 1.61 m^(3)/s between 2000 and 2100.These findings indicate that both global warming and intensified land use have substantially altered hydrological and climatic processes in the basin,highlighting the vulnerability of western Mongolia's water resources to combined climatic and anthropogenic influence.展开更多
The school motto"Seeking Truth and Being Pragmatic"of Inner Mongolia University is not only a condensation of the spirit of the faculty,students and alumni of Inner Mongolia University,but also a wise inheri...The school motto"Seeking Truth and Being Pragmatic"of Inner Mongolia University is not only a condensation of the spirit of the faculty,students and alumni of Inner Mongolia University,but also a wise inheritance of the spirit of"seeking truth"and"being pragmatic"from our ancestors of all generations.Furthermore,it represents a profound recognition of the Party's ideological line in the new era.In the new era,we should integrate the university spirit with modern political concepts,continue to promote the core concept of"Seeking Truth and Being Pragmatic"of Inner Mongolia University,and achieve the unity of knowledge and practice.It is expected that language,as a symphony,will play the beautiful melody of the international communication of the spirit of"Seeking Truth and Being Pragmatic".展开更多
A site showcasing the rich history and diverse grassland cultures in north China.LOCATED in north China,the area of the present-day Inner Mongolia Autonomous Region–stretching over 2,400 kilometers east to west and 1...A site showcasing the rich history and diverse grassland cultures in north China.LOCATED in north China,the area of the present-day Inner Mongolia Autonomous Region–stretching over 2,400 kilometers east to west and 1,700 kilometers north to south-has been home to various ethnic groups throughout history.展开更多
At the invitation of the Masaliyev Foundation of Kyrgyzstan and the Institute for International Studies of Mongolian Academy of Sciences,a CAFIU delegation headed by Ai Ping,Vice-President of CAFIU and former Vice-Min...At the invitation of the Masaliyev Foundation of Kyrgyzstan and the Institute for International Studies of Mongolian Academy of Sciences,a CAFIU delegation headed by Ai Ping,Vice-President of CAFIU and former Vice-Minister of the International Department of the CPC Central Committee,visited Kyrgyzstan and Mongolia from 22nd to 26th September.展开更多
The southern part of East Siberia(SES)is highly vulnerable to flooding caused by the extreme precipitation events(EPEs)during summer.Building on previously detected EPEs in SES and Mongolia,we examined wave propagatio...The southern part of East Siberia(SES)is highly vulnerable to flooding caused by the extreme precipitation events(EPEs)during summer.Building on previously detected EPEs in SES and Mongolia,we examined wave propagation patterns for two periods:1982-98 and 1999-2019.Our analysis revealed distinct wave train configurations and geopotential anomalies preceding EPEs,with an increase in wave activity flux across the Northern Hemisphere,followed by a subsequent decrease during EPEs.Consequently,Eastern Siberia has experienced a significant rise in wave activity.Based on geopotential anomalies over Central Siberia accompanying EPEs,we identified two main types.The first,the ridge type,is predominant during the first period and features a meridional contrast with a positive geopotential(and temperature)anomaly over Central Siberia and a negative anomaly over the subtropical regions along the same longitude.The second type,termed the trough type,is more typical for the second period.It involves either a negative geopotential anomaly or the zonal proximity of positive and negative geopotential anomalies over Central Siberia.The trough type,marked by zonally oriented anomalies in geopotential and temperature,results in a more pronounced temperature decrease before EPEs and significant zonal temperature contrasts.Further,it is related to more stationary waves over Northern Eurasia,with persistent positive geopotential anomalies over Europe linked to quasi-stationary troughs over Central Siberia and positive anomalies east of Lake Baikal.Our findings align with shifts in boreal summer teleconnection patterns,reflecting significant changes in wave propagation patterns that have occurred since the late 1990s.展开更多
High-Mg andesite/diorite(HMA)is useful for identifying subduction-related processes in orogenic belts,including the identification of ophiolites formed in suprasubduction zone(SSZ)environments.The E'rentaolegai hi...High-Mg andesite/diorite(HMA)is useful for identifying subduction-related processes in orogenic belts,including the identification of ophiolites formed in suprasubduction zone(SSZ)environments.The E'rentaolegai high-Mg diorite from the Diyanmiao ophiolite in central Inner Mongolia,North China,has been investigated revealing low-K tholeiitic-calc-alkaline characteristics and have SiO_(2)contents of 53.44-54.92 wt%,MgO contents of 8.44-9.54 wt%,and Mg~#of 54.35-57.60,with variable Fe_(2)O_(3)(7.51-8.61 wt%),Al_(2)O_(3)(11.95-15.09 wt%),and Na_(2)O(3.42-3.94 wt%)contents,low K_(2)O(0.34-0.97 wt%),TiO_(2)(0.35-0.67 wt%),and P2O5(0.12-0.15 wt%)contents,and high Ni(43-193 ppm)and Cr(189-556 ppm)contents.Samples collected have low total rare earth element(REE)contents(30.58-77.80 ppm),with flat or slightly right-dipping REE patterns(La_(N)/Yb_(N)=2.19-3.11)and a lack of pronounced Eu anomalies.The samples are also enriched in large-ion lithophile elements(LILEs,e.g.,K,Rb,Ba,U,and Sr)and depleted in high field strength elements(e.g.,Ta,Nb,Ti,and P).The E'rentaolegai high-Mg diorite has characteristics typical of HMA,and are similar to those of sanukites from the Setouchi Arc in SW Japan.They also display high positiveε_(Nd)(t)values(+6.32 to+7.80),comparable to the values of their host rocks.Petrogenetic analyses suggest that the E'rentaolegai HMA was probably formed by the interaction of partial melts and aqueous fluids from subducted sediments with mantle peridotite.Zircon U-Pb dating reveals that the high-Mg diorite crystallized at 313.6±2.4 Ma,i.e.,late Carboniferous.Combining our data with the temporal and spatial distribution of the Diyanmiao SSZ-type ophiolite,we propose that the eastern Paleo-Asian Ocean had not closed by the late Carboniferous,but intra-oceanic subduction was ongoing.A new model of the initiation of subduction in the eastern PAO during the late Paleozoic.展开更多
People that herd livestock for a living are known as herders,and they are found throughout Mongolia’s wild vast steppe.The purpose of the study is to investigate herder parents’belief systems for preparing the un-pr...People that herd livestock for a living are known as herders,and they are found throughout Mongolia’s wild vast steppe.The purpose of the study is to investigate herder parents’belief systems for preparing the un-preschooled children for schooling in the context of herder community in rural Mongolia.The belief systems of herder parents are shaped by three main characteristics:They lack a clear plan for their children’s education,are deeply concerned about it,and feel incapable of preparing their children for formal schooling.Herders’lives revolve around their livestock,and they must remain flexible,moving when necessary due to factors like water scarcity and poor grazing conditions caused by insufficient rain.While they desire better education for their children,the nomadic lifestyle makes it difficult to achieve.Herder parents’attitudes are contradictory;they want their children to be educated and live in urban areas,yet they also prefer them to become herders rather than educated but unemployed individuals.The hard work of herding makes them reluctant to pass it on to the next generation.展开更多
The author affiliation and the funding information in the Acknowledgement section of the online version of the original article was revised.One affiliation(the 8th affiliation)of the first author is added.The Acknowle...The author affiliation and the funding information in the Acknowledgement section of the online version of the original article was revised.One affiliation(the 8th affiliation)of the first author is added.The Acknowledgement section of the original article has been revised to:Acknowledgments:This research was funded by the National University of Mongolia under grant agreement P2023(grant number P2023-4578)and supported by the Chey Institute for Advanced Studies“International Scholarship Exchange Fellowship for the academic year of 2024-2025”,Republic of Korea,and the National University of Mongolia.We would like to acknowledge the National University of Mongolia and Soumik Das from the Center for the Study of Regional Development,Jawaharlal Nehru University,New Delhi-110067,for his valuable assistance in preparing the geological maps.展开更多
On April 3rd,the"Dunhuang Cultural Week—When Dunhuang Meets Ulaanbaatar"Cultural Exhibition opened in Ulaanbaatar.Purevdorj,Vice-Chairman of the State Great Khural of Mongolia,and Shen Minjuan,Chinese Ambas...On April 3rd,the"Dunhuang Cultural Week—When Dunhuang Meets Ulaanbaatar"Cultural Exhibition opened in Ulaanbaatar.Purevdorj,Vice-Chairman of the State Great Khural of Mongolia,and Shen Minjuan,Chinese Ambassador to Mongolia,attended the opening ceremony and delivered speeches.People from all walks of life in China and Mongolia attended the event.展开更多
The effects of land use changes on poverty vary markedly among geographic regions.While Inner Mongolia has been experiencing significant land use changes during past decades,to date there has been no systematic resear...The effects of land use changes on poverty vary markedly among geographic regions.While Inner Mongolia has been experiencing significant land use changes during past decades,to date there has been no systematic research aimed at understanding how these land use changes affect poverty in the region.This study analyzes spatiotemporal patterns of land use changes in Inner Mongolia from 1980 to 2020 through the application of statistical methods including Correlation Analysis,Multiple Stepwise Regression Analysis,and Geographically Weighted Regression to understand how land use changes affect the distribution and dynamics of poverty.We show that five types of land use conversion explain 51% of the variation in poverty levels.Conversions among cultivated land,grassland,and construction land are shown to have dominated the pattern of land use change in Inner Mongolia.From 2000 to 2020,2,208 km^(2)of grassland and 56 km^(2)of water/wetland were converted to builtup land,and 32 km^(2)of water/wetland was converted to woodland,these conversions promoted poverty reduction.Conversely,the conversion of existing cultivated land to grassland and its degradation to unused land(1,754 km^(2)and 156 km^(2),respectively)has constrained progress in alleviating poverty in the region.Accordingly,further mitigation of poverty in Inner Mongolia can be obtained through interventions that conserve remaining cultivated land,while simultaneously facilitating urbanization.Maintaining the dynamic balance between economic growth and environmental protection is key to the development of policies that advance sustainability in this region.Moreover,the methodology used in this study has the potential to be applied to other regions of the world with similar environmental and socioeconomic conditions to support sustainable land use planning in the context of poverty reduction.展开更多
The Xing'an-Inner Mongolia Orogen is a critical tectonic unit for constraining the evolution of the Paleo-Asian Ocean.However,the location and time of the closure of the Paleo-Asian Ocean are still debated.Here,we...The Xing'an-Inner Mongolia Orogen is a critical tectonic unit for constraining the evolution of the Paleo-Asian Ocean.However,the location and time of the closure of the Paleo-Asian Ocean are still debated.Here,we select a representative basin in Dashizhai in northeastern China,using U-Pb zircon geochronology and geochemistry to analyze the sedimentary facies,depositional ages,and provenance.The results show that the ages of the Dashizhai Formation range from 400 to 347 Ma,the Shoushangou Formation range from 400 to 348 Ma,the Zhesi Formation range from 307 to 252 Ma,and the Linxi Formation range from 299 to 241 Ma.The Dashizhai Formation is composed of metamorphic andesite and clastic rocks.The Shoushangou Formation comprises siltstone,rhyolite,and argillaceous siltstone.The Zhesi and Linxi Formations are composed of mudstone and argillaceous siltstone.Geochemical data shows that these rocks are enriched in light rare earth elements and depleted in Eu with various La/Sc,Th/Sc,and La/Co ratios.The Permian Dashizhai Basin is from Permian volcanic and felsic igneous rocks from the Ergun,Xing'an,and Songliao blocks.The absence of the Late Carboniferous strata in the Dashizhai Basin indicates an extension setting during this period.Furthermore,we suggest the Xing'an-Inner Mongolia Orogen was an uplifting process associated with evolution the Paleo-Asian Ocean during the Late Permian.展开更多
Tradition and Innovation in Harmony A Visit to Xilinhot,Inner Mongolia From 6th to 11th of September,2025,an international delegation organised by the China NGO Network for International Exchanges(CNIE),together with ...Tradition and Innovation in Harmony A Visit to Xilinhot,Inner Mongolia From 6th to 11th of September,2025,an international delegation organised by the China NGO Network for International Exchanges(CNIE),together with the Xilingol League and Xilinhot Foreign Affairs Office,visited Xilinhot,Inner Mongolia.展开更多
With the crisp autumn weather,China's northern frontier region warmly welcomed vips from various parts of the world.From 6th to 11th September,six foreign delegations attending the Second International Civil Soc...With the crisp autumn weather,China's northern frontier region warmly welcomed vips from various parts of the world.From 6th to 11th September,six foreign delegations attending the Second International Civil Society Solidarity Conference on the Global Development Initiative visited Hohhot and the Xilingol League in Inner Mongolia.展开更多
基金supported by the Central Government Guiding Local Science and Technology Development Fund Project(No.2024SZY0343)the Joint Research Program for Ecological Conservation and High Quality Development of the Yellow River Basin(No.2022-YRUC-01-050205)+2 种基金the Higher Education Scientific Research Project of Inner Mongolia Autonomous Region(No.NJZZ23078)the project of Inner Mongolia"Prairie Talents"Engineering Innovation Entrepreneurship Talent Team,the Major Projects of Erdos Science and Technology(No.2022EEDSKJZDZX015)the Innovation Team of the Inner Mongolia Academy of Science and Technology(No.CXTD2023-01-016).
文摘Rural domestic sewage treatment is critical for environmental protection.This study defines the spatial pattern of villages from the perspective of rural sewage treatment and develops an integrated decision-making system to propose a sewage treatment mode and scheme suitable for local conditions.By considering the village spatial layout and terrain factors,a decision tree model of residential density and terrain type was constructed with accuracies of 76.47%and 96.00%,respectively.Combined with binary classification probability unit regression,an appropriate sewage treatment mode for the village was determined with 87.00%accuracy.The Analytic Hierarchy Process(AHP),combined with the Technique for Order Preference(TOPSIS)by Similarity to an Ideal Solution model,formed the basis for optimal treatment process selection under different emission standards.Verification was conducted in 542 villages across three counties of the Inner Mongolia Autonomous Region,focusing on the standard effluent effect(0.3773),low investment cost(0.3196),and high standard effluent effect(0.5115)to determine the best treatment process for the same emission standard under different needs.The annual environmental and carbon emission benefits of sewage treatment in these villages were estimated.This model matches village density,geographic feature,and social development level,and provides scientific support and a theoretical basis for rural sewage treatment decision-making.
基金funded by the Inner Mongolia Autonomous Region Natural Science Foundation Youth Fund Project(Grants No.2024QN04020)A Science and technology program of Inner Mongolia Autonomous Region(Grants No.2022YFDZ0027)。
文摘Flash droughts(FDs)develop quickly and can rapidly deplete soil moisture,posing significant threats to agriculture and pastoral systems.To investigate the spatiotemporal characteristics and development mechanisms of FDs in Inner Mongolia,China,and to assess the roles of key meteorological drivers in driving soil moisture variability,FD events were identified using root-zone soil moisture data during the growing seasons from 1982 to 2022.The results indicate the presence of five FD hotspot regions,located in the southern Alxa Plateau,the Hetao Plain in Bayannur,the northwestern Xilingol Plain,the western Liaohe River Plain,and the northern Da Hinggan Ling.Over 41 years,FDs occurred on average 7.44 events across the study area,with a mean duration of 9.17 pentads(1 pentad equals 5 days).The duration exhibited a significant increasing trend of 0.39 pentads/10 years.FD onsets primarily lasted for 2-3 pentads.During the FD development phase,precipitation and evapotranspiration decreased while temperature,potential evapotranspiration,incoming solar radiation,and vapor pressure deficit increased.The dominant meteorological drivers of FD development exhibited notable spatial heterogeneity across hotspot regions,and vapor pressure deficit consistently was the most influential factor.These findings improve the understanding of climate drivers at different stages of FD development and provide scientific support for early warning and prevention of droughts in Inner Mongolia.
基金The National University of Mongolia,No.P2024-4814The Mongolian Science and Technology Foundation,No.CHN-2022/274The‘Chey Institute for Advanced Studies’International Scholar Exchange Fellowship for the Academic Year of 2025-2026。
文摘This study investigates climate-and human-induced hydrological changes in the Zavkhan River-Khyargas Lake Basin,a highly sensitive arid and semi-arid region of Central Asia.Using Mann-Kendall,innovative trend analysis,and Sen's slope estimation methods,historical climate trends(1980-2100)were analyzed,while land cover changes represented human impacts.Future projections were simulated using the MIROC model with Shared Socioeconomic Pathways(SSPs)and the Tank model.Results show that during the past 40 years,air temperature significantly increased(Z=3.93^(***)),while precipitation(Z=-1.54^(*))and river flow(Z=-1.73^(*))both declined.The Khyargas Lake water level dropped markedly(Z=-5.57***).Land cover analysis reveals expanded cropland and impervious areas due to human activity.Under the SSP1.26 scenario,which assumes minimal climate change,air temperature is projected to rise by 2.0℃,precipitation by 21.8 mm,and river discharge by 1.61 m^(3)/s between 2000 and 2100.These findings indicate that both global warming and intensified land use have substantially altered hydrological and climatic processes in the basin,highlighting the vulnerability of western Mongolia's water resources to combined climatic and anthropogenic influence.
文摘The school motto"Seeking Truth and Being Pragmatic"of Inner Mongolia University is not only a condensation of the spirit of the faculty,students and alumni of Inner Mongolia University,but also a wise inheritance of the spirit of"seeking truth"and"being pragmatic"from our ancestors of all generations.Furthermore,it represents a profound recognition of the Party's ideological line in the new era.In the new era,we should integrate the university spirit with modern political concepts,continue to promote the core concept of"Seeking Truth and Being Pragmatic"of Inner Mongolia University,and achieve the unity of knowledge and practice.It is expected that language,as a symphony,will play the beautiful melody of the international communication of the spirit of"Seeking Truth and Being Pragmatic".
文摘A site showcasing the rich history and diverse grassland cultures in north China.LOCATED in north China,the area of the present-day Inner Mongolia Autonomous Region–stretching over 2,400 kilometers east to west and 1,700 kilometers north to south-has been home to various ethnic groups throughout history.
文摘At the invitation of the Masaliyev Foundation of Kyrgyzstan and the Institute for International Studies of Mongolian Academy of Sciences,a CAFIU delegation headed by Ai Ping,Vice-President of CAFIU and former Vice-Minister of the International Department of the CPC Central Committee,visited Kyrgyzstan and Mongolia from 22nd to 26th September.
文摘The southern part of East Siberia(SES)is highly vulnerable to flooding caused by the extreme precipitation events(EPEs)during summer.Building on previously detected EPEs in SES and Mongolia,we examined wave propagation patterns for two periods:1982-98 and 1999-2019.Our analysis revealed distinct wave train configurations and geopotential anomalies preceding EPEs,with an increase in wave activity flux across the Northern Hemisphere,followed by a subsequent decrease during EPEs.Consequently,Eastern Siberia has experienced a significant rise in wave activity.Based on geopotential anomalies over Central Siberia accompanying EPEs,we identified two main types.The first,the ridge type,is predominant during the first period and features a meridional contrast with a positive geopotential(and temperature)anomaly over Central Siberia and a negative anomaly over the subtropical regions along the same longitude.The second type,termed the trough type,is more typical for the second period.It involves either a negative geopotential anomaly or the zonal proximity of positive and negative geopotential anomalies over Central Siberia.The trough type,marked by zonally oriented anomalies in geopotential and temperature,results in a more pronounced temperature decrease before EPEs and significant zonal temperature contrasts.Further,it is related to more stationary waves over Northern Eurasia,with persistent positive geopotential anomalies over Europe linked to quasi-stationary troughs over Central Siberia and positive anomalies east of Lake Baikal.Our findings align with shifts in boreal summer teleconnection patterns,reflecting significant changes in wave propagation patterns that have occurred since the late 1990s.
基金supported by the Ministry of Science and Technology of the People’s Republic of China(Grant No.2022FY101704)the National Natural Science Foundation of China(Grant No.41972061)+1 种基金Science and Technology Innovation Team of Hebei GEO University(30801071)the China Geological Survey(Grant Nos.1212011120701 and 1212011120711)。
文摘High-Mg andesite/diorite(HMA)is useful for identifying subduction-related processes in orogenic belts,including the identification of ophiolites formed in suprasubduction zone(SSZ)environments.The E'rentaolegai high-Mg diorite from the Diyanmiao ophiolite in central Inner Mongolia,North China,has been investigated revealing low-K tholeiitic-calc-alkaline characteristics and have SiO_(2)contents of 53.44-54.92 wt%,MgO contents of 8.44-9.54 wt%,and Mg~#of 54.35-57.60,with variable Fe_(2)O_(3)(7.51-8.61 wt%),Al_(2)O_(3)(11.95-15.09 wt%),and Na_(2)O(3.42-3.94 wt%)contents,low K_(2)O(0.34-0.97 wt%),TiO_(2)(0.35-0.67 wt%),and P2O5(0.12-0.15 wt%)contents,and high Ni(43-193 ppm)and Cr(189-556 ppm)contents.Samples collected have low total rare earth element(REE)contents(30.58-77.80 ppm),with flat or slightly right-dipping REE patterns(La_(N)/Yb_(N)=2.19-3.11)and a lack of pronounced Eu anomalies.The samples are also enriched in large-ion lithophile elements(LILEs,e.g.,K,Rb,Ba,U,and Sr)and depleted in high field strength elements(e.g.,Ta,Nb,Ti,and P).The E'rentaolegai high-Mg diorite has characteristics typical of HMA,and are similar to those of sanukites from the Setouchi Arc in SW Japan.They also display high positiveε_(Nd)(t)values(+6.32 to+7.80),comparable to the values of their host rocks.Petrogenetic analyses suggest that the E'rentaolegai HMA was probably formed by the interaction of partial melts and aqueous fluids from subducted sediments with mantle peridotite.Zircon U-Pb dating reveals that the high-Mg diorite crystallized at 313.6±2.4 Ma,i.e.,late Carboniferous.Combining our data with the temporal and spatial distribution of the Diyanmiao SSZ-type ophiolite,we propose that the eastern Paleo-Asian Ocean had not closed by the late Carboniferous,but intra-oceanic subduction was ongoing.A new model of the initiation of subduction in the eastern PAO during the late Paleozoic.
文摘People that herd livestock for a living are known as herders,and they are found throughout Mongolia’s wild vast steppe.The purpose of the study is to investigate herder parents’belief systems for preparing the un-preschooled children for schooling in the context of herder community in rural Mongolia.The belief systems of herder parents are shaped by three main characteristics:They lack a clear plan for their children’s education,are deeply concerned about it,and feel incapable of preparing their children for formal schooling.Herders’lives revolve around their livestock,and they must remain flexible,moving when necessary due to factors like water scarcity and poor grazing conditions caused by insufficient rain.While they desire better education for their children,the nomadic lifestyle makes it difficult to achieve.Herder parents’attitudes are contradictory;they want their children to be educated and live in urban areas,yet they also prefer them to become herders rather than educated but unemployed individuals.The hard work of herding makes them reluctant to pass it on to the next generation.
文摘The author affiliation and the funding information in the Acknowledgement section of the online version of the original article was revised.One affiliation(the 8th affiliation)of the first author is added.The Acknowledgement section of the original article has been revised to:Acknowledgments:This research was funded by the National University of Mongolia under grant agreement P2023(grant number P2023-4578)and supported by the Chey Institute for Advanced Studies“International Scholarship Exchange Fellowship for the academic year of 2024-2025”,Republic of Korea,and the National University of Mongolia.We would like to acknowledge the National University of Mongolia and Soumik Das from the Center for the Study of Regional Development,Jawaharlal Nehru University,New Delhi-110067,for his valuable assistance in preparing the geological maps.
文摘On April 3rd,the"Dunhuang Cultural Week—When Dunhuang Meets Ulaanbaatar"Cultural Exhibition opened in Ulaanbaatar.Purevdorj,Vice-Chairman of the State Great Khural of Mongolia,and Shen Minjuan,Chinese Ambassador to Mongolia,attended the opening ceremony and delivered speeches.People from all walks of life in China and Mongolia attended the event.
基金supported by the Foundation for Innovative Research Groups of the National Natural Science Foundation of China(Grant No.71921003)the National Social Science Fund of China-Major Project(Grant No.23&ZD099)。
文摘The effects of land use changes on poverty vary markedly among geographic regions.While Inner Mongolia has been experiencing significant land use changes during past decades,to date there has been no systematic research aimed at understanding how these land use changes affect poverty in the region.This study analyzes spatiotemporal patterns of land use changes in Inner Mongolia from 1980 to 2020 through the application of statistical methods including Correlation Analysis,Multiple Stepwise Regression Analysis,and Geographically Weighted Regression to understand how land use changes affect the distribution and dynamics of poverty.We show that five types of land use conversion explain 51% of the variation in poverty levels.Conversions among cultivated land,grassland,and construction land are shown to have dominated the pattern of land use change in Inner Mongolia.From 2000 to 2020,2,208 km^(2)of grassland and 56 km^(2)of water/wetland were converted to builtup land,and 32 km^(2)of water/wetland was converted to woodland,these conversions promoted poverty reduction.Conversely,the conversion of existing cultivated land to grassland and its degradation to unused land(1,754 km^(2)and 156 km^(2),respectively)has constrained progress in alleviating poverty in the region.Accordingly,further mitigation of poverty in Inner Mongolia can be obtained through interventions that conserve remaining cultivated land,while simultaneously facilitating urbanization.Maintaining the dynamic balance between economic growth and environmental protection is key to the development of policies that advance sustainability in this region.Moreover,the methodology used in this study has the potential to be applied to other regions of the world with similar environmental and socioeconomic conditions to support sustainable land use planning in the context of poverty reduction.
基金the National Natural Science Foundation of China(No.41872232)。
文摘The Xing'an-Inner Mongolia Orogen is a critical tectonic unit for constraining the evolution of the Paleo-Asian Ocean.However,the location and time of the closure of the Paleo-Asian Ocean are still debated.Here,we select a representative basin in Dashizhai in northeastern China,using U-Pb zircon geochronology and geochemistry to analyze the sedimentary facies,depositional ages,and provenance.The results show that the ages of the Dashizhai Formation range from 400 to 347 Ma,the Shoushangou Formation range from 400 to 348 Ma,the Zhesi Formation range from 307 to 252 Ma,and the Linxi Formation range from 299 to 241 Ma.The Dashizhai Formation is composed of metamorphic andesite and clastic rocks.The Shoushangou Formation comprises siltstone,rhyolite,and argillaceous siltstone.The Zhesi and Linxi Formations are composed of mudstone and argillaceous siltstone.Geochemical data shows that these rocks are enriched in light rare earth elements and depleted in Eu with various La/Sc,Th/Sc,and La/Co ratios.The Permian Dashizhai Basin is from Permian volcanic and felsic igneous rocks from the Ergun,Xing'an,and Songliao blocks.The absence of the Late Carboniferous strata in the Dashizhai Basin indicates an extension setting during this period.Furthermore,we suggest the Xing'an-Inner Mongolia Orogen was an uplifting process associated with evolution the Paleo-Asian Ocean during the Late Permian.
文摘Tradition and Innovation in Harmony A Visit to Xilinhot,Inner Mongolia From 6th to 11th of September,2025,an international delegation organised by the China NGO Network for International Exchanges(CNIE),together with the Xilingol League and Xilinhot Foreign Affairs Office,visited Xilinhot,Inner Mongolia.
文摘With the crisp autumn weather,China's northern frontier region warmly welcomed vips from various parts of the world.From 6th to 11th September,six foreign delegations attending the Second International Civil Society Solidarity Conference on the Global Development Initiative visited Hohhot and the Xilingol League in Inner Mongolia.
