Based on the systematic analysis of the coal gangue in Weibei Coalfield, such as petrologic characteristics, chemical composition, nutrient elements, deleterious elements, and the transformation, and compared with the...Based on the systematic analysis of the coal gangue in Weibei Coalfield, such as petrologic characteristics, chemical composition, nutrient elements, deleterious elements, and the transformation, and compared with the soil element content background values of Loess Plateau and national harmful materials controlling standards, we conclude that the coal gangue in the Weibei Coalfield has huge potential to be used as clay fertilizer.展开更多
Weibei upland, located in southern part of the Loess Plateau, is a commercial apple production base in China. The enlargement of apple-planting area has a great impact on the regional water cycle. The effects of diffe...Weibei upland, located in southern part of the Loess Plateau, is a commercial apple production base in China. The enlargement of apple-planting area has a great impact on the regional water cycle. The effects of different land use on hydrological parameters are compared and studied in this paper. The main results are as follows (1) The initial and steady infiltration rates in apple orchard are higher than those in other land use types such as grassland, idle land and farmland. Their initial rates of infiltration are 0.823 cm/min, 0.215 cm/min, 0.534 cm/min and 0.586 cm/min in apple orchard, grassland, idle land and farmland respectively. Their steady infiltration rates are 0.45 cm/min, 0.038 cm/min, 0.191 cm/min and 0.155 cm/min respectively. (2) There is no runoff generated in plot of apple orchard in all 8 storm events in observed natural rainfalls, while runoff is generated in winter wheat plot, corn plot and alfalfa plot with runoff coefficients of 2.39%, 1.58% and 0.31% respectively. (3) The transpiration of apple trees is strong and thus soil moisture is gradually depleted. The average soil water contents in 3–9 m soil profile in Changwu plots with apple trees of 14 and 32 years in age are 11.77% and 11.59% and in Luochuan plots with those of 15 and 28 years in age are 11.7% and 11.59% respectively, which are nearly 9.0% of wilting moisture of Changwu soil and 8.6% of wilting moisture of Luochuan soil. The pathway of rainfall percolating to groundwater is hindered by dry soil profile.展开更多
1 Introduction The Weibei Uplift is located in the southwest of the North China Plate,where is the stable block(the Ordos Block)in the north and the active belt(the QinlingOrogenic Belt)in the south(Ren et al,2014,201...1 Introduction The Weibei Uplift is located in the southwest of the North China Plate,where is the stable block(the Ordos Block)in the north and the active belt(the QinlingOrogenic Belt)in the south(Ren et al,2014,2015).And the belt is separated from the Weihe basin.The Weibei uplift has a uniform crystalline basement with the North展开更多
The eco-environment-oriented development (EOD) mode is an innovative projectorganization and implementation approach that integrates ecological governance, industrialoperations, and regional development. However, this...The eco-environment-oriented development (EOD) mode is an innovative projectorganization and implementation approach that integrates ecological governance, industrialoperations, and regional development. However, this mode still requires more in-depthresearch to strengthen its applicability to spatial perspectives and rural patterns. This studycontributes to this context by proposing a rural spatial governance framework based on theEOD mode, focusing on the three main governance elements: space, capital, and subject.By constructing a conceptual model of the multidimensional governance effectiveness ofEOD systems, it reveals the coupling mechanisms of three rural elements and proposes governance modes with spatially integrated optimization, capital value circulation, and rural subject connection as the focus of elemental regulation. This mode is further demonstratedthrough instantiation. In response to the developmental dilemmas of the villages’ overalldecline owing to coal mining subsidence on the Weibei Plateau, an integrated transformationplan for production, living, and ecological spaces is formulated, based on which the stagespecific focuses are clarified in the holistic governance path of “space-capital-subject”. Theresearch findings exemplify the application value and feasibility in regulating element relationships and balancing multiple benefits and can provide a reference at the spatial level topromote rural sustainable development through ecological governance.展开更多
WEIBEI Jail is located in the north of the Weifang area, Shandong Province. Its 8th brigade of women prisoners is a holding facility for most women convicts in Shandong. Nearly 20 policewomen work in the facility and ...WEIBEI Jail is located in the north of the Weifang area, Shandong Province. Its 8th brigade of women prisoners is a holding facility for most women convicts in Shandong. Nearly 20 policewomen work in the facility and are in charge of more than 300 convicts from Yantai, Qingdao, Weihai and Weifang. In order to reform criminals to observe laws so that展开更多
山东潍北沿海地下卤水矿主要赋存于第四系平原组、潍北组。平原组根据时代及沉积特征由上至下划分为5个非正式岩性段,其中三段、一段和潍北组为地下卤水赋矿层位,分别对应第Ⅰ、Ⅱ、Ⅲ海相层。通过14C测年,平原组顶界年龄≈24 000 a BP...山东潍北沿海地下卤水矿主要赋存于第四系平原组、潍北组。平原组根据时代及沉积特征由上至下划分为5个非正式岩性段,其中三段、一段和潍北组为地下卤水赋矿层位,分别对应第Ⅰ、Ⅱ、Ⅲ海相层。通过14C测年,平原组顶界年龄≈24 000 a BP,底界年龄>(32 390±210) a BP,属第四纪晚更新世;潍北组底界亦即全新世海侵发生的时间最早在(11 223±131) a BP。区内地下卤水矿体呈东西向带状分布,厚度变化较大,表征为一较有规律的透镜体形态,在走向上(西→中→东)、垂直海岸线方向上(北→中→南)、垂向上(浅部→中部→深部),卤水浓度于三维空间呈低→高→低的变化规律,与海侵规模及相匹配的海相地层呈正比。研究表明,地下卤水的赋矿层位、岩性特征和时代背景对卤水资源的分布具有重要影响。展开更多
文摘Based on the systematic analysis of the coal gangue in Weibei Coalfield, such as petrologic characteristics, chemical composition, nutrient elements, deleterious elements, and the transformation, and compared with the soil element content background values of Loess Plateau and national harmful materials controlling standards, we conclude that the coal gangue in the Weibei Coalfield has huge potential to be used as clay fertilizer.
基金National Natural Science Foundation of China, No. 49890330 Western Development Project of Chinese Academy of Sciences
文摘Weibei upland, located in southern part of the Loess Plateau, is a commercial apple production base in China. The enlargement of apple-planting area has a great impact on the regional water cycle. The effects of different land use on hydrological parameters are compared and studied in this paper. The main results are as follows (1) The initial and steady infiltration rates in apple orchard are higher than those in other land use types such as grassland, idle land and farmland. Their initial rates of infiltration are 0.823 cm/min, 0.215 cm/min, 0.534 cm/min and 0.586 cm/min in apple orchard, grassland, idle land and farmland respectively. Their steady infiltration rates are 0.45 cm/min, 0.038 cm/min, 0.191 cm/min and 0.155 cm/min respectively. (2) There is no runoff generated in plot of apple orchard in all 8 storm events in observed natural rainfalls, while runoff is generated in winter wheat plot, corn plot and alfalfa plot with runoff coefficients of 2.39%, 1.58% and 0.31% respectively. (3) The transpiration of apple trees is strong and thus soil moisture is gradually depleted. The average soil water contents in 3–9 m soil profile in Changwu plots with apple trees of 14 and 32 years in age are 11.77% and 11.59% and in Luochuan plots with those of 15 and 28 years in age are 11.7% and 11.59% respectively, which are nearly 9.0% of wilting moisture of Changwu soil and 8.6% of wilting moisture of Luochuan soil. The pathway of rainfall percolating to groundwater is hindered by dry soil profile.
基金supported by Natural Science Foundation of China (Project No. 41630312)The National Nature Science Foundation of China (Project No. 41372208 and 40534019)The Open Found of the State Key Laboratory of Ore Deposit Geochemistry, CAS(Project No. 201304)
文摘1 Introduction The Weibei Uplift is located in the southwest of the North China Plate,where is the stable block(the Ordos Block)in the north and the active belt(the QinlingOrogenic Belt)in the south(Ren et al,2014,2015).And the belt is separated from the Weihe basin.The Weibei uplift has a uniform crystalline basement with the North
基金supported by the Project of National Key Research and Development Program,China of the 14th Five-Year Plan(Grant No.2022YFC3802801)the Project of Shaanxi Provincial Education Department 2022 Key Research Program,China(Grant No.22JY031)the Excellent Doctoral Dissertation Cultivation Fund Project of Xi’an University of Architecture and Technology,China(Grant No.2021XYBPY009).
文摘The eco-environment-oriented development (EOD) mode is an innovative projectorganization and implementation approach that integrates ecological governance, industrialoperations, and regional development. However, this mode still requires more in-depthresearch to strengthen its applicability to spatial perspectives and rural patterns. This studycontributes to this context by proposing a rural spatial governance framework based on theEOD mode, focusing on the three main governance elements: space, capital, and subject.By constructing a conceptual model of the multidimensional governance effectiveness ofEOD systems, it reveals the coupling mechanisms of three rural elements and proposes governance modes with spatially integrated optimization, capital value circulation, and rural subject connection as the focus of elemental regulation. This mode is further demonstratedthrough instantiation. In response to the developmental dilemmas of the villages’ overalldecline owing to coal mining subsidence on the Weibei Plateau, an integrated transformationplan for production, living, and ecological spaces is formulated, based on which the stagespecific focuses are clarified in the holistic governance path of “space-capital-subject”. Theresearch findings exemplify the application value and feasibility in regulating element relationships and balancing multiple benefits and can provide a reference at the spatial level topromote rural sustainable development through ecological governance.
文摘WEIBEI Jail is located in the north of the Weifang area, Shandong Province. Its 8th brigade of women prisoners is a holding facility for most women convicts in Shandong. Nearly 20 policewomen work in the facility and are in charge of more than 300 convicts from Yantai, Qingdao, Weihai and Weifang. In order to reform criminals to observe laws so that
文摘山东潍北沿海地下卤水矿主要赋存于第四系平原组、潍北组。平原组根据时代及沉积特征由上至下划分为5个非正式岩性段,其中三段、一段和潍北组为地下卤水赋矿层位,分别对应第Ⅰ、Ⅱ、Ⅲ海相层。通过14C测年,平原组顶界年龄≈24 000 a BP,底界年龄>(32 390±210) a BP,属第四纪晚更新世;潍北组底界亦即全新世海侵发生的时间最早在(11 223±131) a BP。区内地下卤水矿体呈东西向带状分布,厚度变化较大,表征为一较有规律的透镜体形态,在走向上(西→中→东)、垂直海岸线方向上(北→中→南)、垂向上(浅部→中部→深部),卤水浓度于三维空间呈低→高→低的变化规律,与海侵规模及相匹配的海相地层呈正比。研究表明,地下卤水的赋矿层位、岩性特征和时代背景对卤水资源的分布具有重要影响。
