Results 41 to 50 of about 530 (131)
研究结果表明>0.25mm的水稳性闭粒含量可作为北盘江中游地区土壤抗蚀性指标。土壤抗蚀性与土壤有机质成正相关,与土壤石砾含量成负相关,但按影响土壤抗蚀性大小,影响因子的排序是:土壤石砾含量>岩性>土壤有机质>坡度>土地利用类型;建立了4个预测土壤抗蚀性的数学模型,这些模型具有较高的精度,其中两个模型可直接用于野餐测定。
安和平
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Effect of Freezing on Wind Erosion Resistance of Sand Dune Soil [PDF]
[Objective] To investigate the effect of winter soil freezing on soil erodibility and anti-erodibility in the Yellow River section of the Ulan Buh Desert.
DOU Chunhua +4 more
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Characteristics and Drivers of Spatial and Temporal Soil Erosion in Anshun City, Karst Region [PDF]
[Objective] To explore the spatial and temporal evolution of soil erosion in Anshun City, southwest karst region, as well as the main controlling factors of soil erosion, and to master the soil erosion situation in the region, in order to help the ...
LI Yuan, LIU Ziqi, WU Wenxian
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Distribution Characteristics and Coupling Relationship Between Soil Erosion and Hydrologic and Sediment Connectivity in Changchong River Basin [PDF]
[Objective] To clarify the distribution characteristics and coupling relationship between soil erosion and hydrologic and sediment connectivity in Changchong River Basin, and to provide basis for soil erosion control and soil erosion prevention in this ...
LI Jianing +4 more
core +1 more source
Analysis of Soil Erosion Intensity Change Trajectories and Their Driving Factors in Yunnan Province Based on An Improved Stability Mapping Method [PDF]
[Objective] To elucidate the change trajectories of soil erosion intensity in Yunnan Province from 1990 to 2022, and analyze the types of changes and their driving factors, in order to provide a scientific foundation for effective soil erosion control ...
HUANG Bangmei +4 more
core +1 more source
土壤抗蚀性是评定土壤抵抗侵蚀能力的重要参数之一,历来为人们所重视,该文根据大量实测资料对黄土高原土壤抗蚀性基本特点进行了分析,认为影响黄土高原土壤抗蚀性的主导因子是腐殖质及料粒含量;水稳性团粒含量是反映黄土高原土壤抗蚀性的最佳指标;黄土高原土壤抗蚀性可根据土壤腐殖含量和水稳性团粒含量分为6级,黄土高原土壤抗蚀性的地域分异是东南部最强、西部居中、而北部最弱。
王佑民 郭培才
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Effect of Reforestation Tree Species on the Distribution and Stability of Purple Soil Aggregates [PDF]
[Objective] Afforestation following the Grain for Green initiative is a crucial measure to improve soil structure and reduce soil erosion. Understanding the mechanisms of the effects of afforestation tree species on the formation of soil aggregates can ...
HAN Guangzhong +4 more
core +1 more source
本文总结了植被及其不同部分在控制水土流失中的作用 ,在此基础上总结了利用植被控制水土流失的方法措施和目前的研究热点 ,并提出现状研究中的不足和将来的研究前景。福建省重大科技项目 (项目编号 :2 0 0 2H0 0 ...
黄云凤
core
土壤入渗速率决定着地表径流,土壤抗剪力制红着土壤的可蚀性能,因此,两者对水土流失作用有着直接的影响,可以用来确定土壤侵蚀的等级。
潘剑君 Berg., IE
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为探讨自然条件下黄土高原地区刺槐林地枯落物和根系对土壤侵蚀的影响。采用5个坡度(8.7%,17.6%,26.8%,36.4%和46.6%)及3种流量(0.5,1.0,2.0 L/s)分别在有枯落物覆盖、去除枯落物的植被和裸坡样地进行试验,探讨刺槐林地枯落物和根系对土壤侵蚀的影响。结果表明,枯落物和根系对土壤侵蚀有显著影响,当枯落物厚度超过3 cm、根系密度>0.5 kg/m3时,土壤侵蚀量减小程度趋于稳定。与裸坡相比,刺槐林地土壤侵蚀量减少约55%,且根系和枯落物对土壤侵蚀量减少的贡献率分别为66 ...
王丹丹, 许海超, 单志杰, 秦伟
doaj

