以怀来县为例,对生态脆弱的荒漠化地区的安全状况进行研究,提出了荒漠化地区生态安全评价的具体指标体系和构建原则,并采用数量化原理与方法,对各指标进行了具体量级划分,采用关联度分析方法,对指标的权重进行了确定,并提出了衡量生态安全程度的数量化指标生态安全系数及其计算方法。影响荒漠化地区生态安全程度的具体因素包括土壤、植被、水分和风力,根据指标因子主导性和可替代性原则,本研究提出替代性指标土壤有机质含量、植被盖度、降雨量和土壤粘粒含量为生态安全评价的具体指标,并对各个因子对生态安全影响程度进行了计算 ...
陈浩 周金星 等
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[Determination of organophosphate diesters in facility vegetable soils using ultra-high performance liquid chromatography-electrostatic field orbitrap high resolution mass spectrometry]. [PDF]
Liu M +7 more
europepmc +1 more source
[Determination of 26 herbicide residues in soil, sediment, and surface water samples using modified QuEChERS method combined with ultra-high performance liquid chromatography-tandem mass spectrometry]. [PDF]
Zhao L, Ma L, Huang LQ, Chen JB, Zhu WF.
europepmc +1 more source
[Evaluation of Gradient-Variant Quantum Dot Fluorescence Technology for Rapid Detection of <i>Brucella</i>]. [PDF]
Li J +9 more
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[Effects of lunar soil simulant and Earth soil on lung injury in mice]. [PDF]
Gong X +8 more
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[Serum levels of polycyclic aromatic hydrocarbons and health risk assessment among children and adolescents]. [PDF]
Wang LP +7 more
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Xue KP +7 more
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[Assessment of Dietary Arsenic Exposure Levels and the Associated Health Risks in Chongqing City, China]. [PDF]
Dai X +11 more
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Dong JY +6 more
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