Study on Agricultural Non-point Source Pollution of Jiulong River Watershed Based on GIS and Environmental Models [PDF]
, 2004 非点源污染是当今水环境污染的主要问题，而农业活动往往是非点源污染的主要来源。由于农业活动在九龙江流域的广泛性和普遍性，加之九龙江是龙岩、漳州和厦门三市的饮用水源，又是农业和工业的使用水源。因此，对九龙江流域农业非点源污染进行研究，具有重要的现实意义和理论价值。 本研究采用野外采样和室内分析相结合，点（典型汇水区）和面（全流域尺度）相结合，经验模型和机理模型相结合的研究方法，在GIS支持下首次对九龙江流域地表径流、土壤侵蚀和氮磷流失进行定量研究和空间分异性探讨，取得了以下成果： 第一 ...
黄金良
core
Evaluation of Ecosystem Services and Tradeoff and Synergy in the Alpine and Canyon Region of Southwest China Based on Multi-source Geographic Data [PDF]
[Objective] The alpine and canyon region of Southwest China is a crucial ecological security barrier within the national “Three Zones and Four Belts” strategy, and it plays an essential role in ensuring national ecological security and promoting regional
GUAN Yinghui +4 more
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Shuitu Baochi Xuebao, 2018 基于DEM数字高程模型并结合RUSLE模型应用GIS、GeoDa、GS+等软件分析了河北省张家口市崇礼区25年间土壤侵蚀空间格局演变及影响因素。结果表明：（1）1990—2015年，研究区中部、西部和西南部土壤侵蚀较严重，土壤侵蚀强度以轻度、中度为主，土壤侵蚀量呈先减少后增加的趋势。（2）1990—2000年，土壤侵蚀强度转变以轻度侵蚀转入为主，土壤侵蚀状况减轻；2000—2010年，土壤侵蚀由微度侵蚀转为高级别侵蚀，侵蚀程度呈严重趋势；2010—2015年，总体表现为微度侵蚀、轻度侵蚀转向高级别侵蚀 ...
丁杰 +4 more
doaj
Spatial-Temporal Variations and Influencing Factors of Water-related Ecosystem Services in Southwest China Under Complex Terrain [PDF]
[Objective] The study of spatial-temporal variations and influencing factors of water-related ecosystem services under complex terrain in Southwest China can serve as a foundation for the ecological management and sustainable development in this region. [
BIAN Hongyan +3 more
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Literature review and prospect on oral cognition and disease diagnosis and treatment between Han and Tang dynasties. [PDF]
Hua Xi Kou Qiang Yi Xue Za Zhi, 2023 Gao Q +5 more
europepmc +1 more source
Research on development and application of test equipment for measuring soil erosion characteristics [PDF]
The soil erosion characteristics mainly include two indexes: critical shear stress for incipient motion of soil and soil erosion rate, which are controlling factors of breach flow and breach morphology evolution during embankment dam breaching ...
LU Hongning1 , ZHONG Qiming1, 2, 3 , SHAN Yibo1, YANG Meng1, HU Liang4
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[Research progress on interference in the identification of accelerants in a fire scene]. [PDF]
Se Pu, 2022 Yin G +5 more
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Rock strength and permeability under compression-shear coupling corresponding to different loading angles [PDF]
The Ordovician limestone aquifer is widely developed in the basement of the Carboniferous Permian coal bearing strata in North China. Coal mining is threatened by both water inrush disasters and water resource loss from the floor confined aquifer.
Dongsheng ZHANG +3 more
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[Applications of microfluidic paper-based chips in environmental analysis and detection]. [PDF]
Se Pu, 2021 Zhang Y +10 more
europepmc +1 more source
[Research progress on the application of derived porous carbon materials in solid-phase microextraction]. [PDF]
Se Pu, 2022 Kuang Y +4 more
europepmc +1 more source