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
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A New Method to Estimate the Cover Management Factor on the Loess Plateau in China [PDF]
[Objective] To investigate the combined effect of crop cover and crop management practices on preventing soil loss and improving the accuracy of C-factor estimation. [Methods] Six millet plots with different treatments, i.
LI Qinglan +4 more
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Shuitu Baochi Xuebao, 2020 土壤水分入渗的观测方法很多，但在测定坡地生物结皮土壤水分入渗时均存在-定的缺陷。线源入流入渗法是可用于无结皮的坡地土壤水分入渗较为简便快捷的观测方法。以裸土为对照，采用线源入流入渗法和模拟降雨法测定了黄土丘陵区多藻少藓、半藻半藓、多藓少藻等不同类型生物结皮土壤水分入渗过程。结果表明：（1）线源入流入渗法可在不干扰生物结皮的情况下，快速、完整地反映土壤水分入渗过程，获取初始入渗速率、平均入渗速率及稳定入渗速率等重要参数；（2）线源入流入渗法所得研究区不同类型生物结皮的初始入渗速率范围为3~12 mm ...
张子辉 +4 more
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Effects of Brackish Water with Different Sodium-Potassium Ratios on Soil Water-Salt Characteristics and Winter Wheat Growth [PDF]
[Objective] To study the effects of brackish water irrigation on soil water and salt characteristics and crop growth is helpful to guide the safe utilization of brackish water.
CHENG Yu +7 more
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Shuitu Baochi Xuebao, 2017 为探究不同入渗水水质对土壤导水特性的影响，采用圆盘负压入渗法进行试验研究，选取两种水质（蒸馏水和自来水）对黄壤土和红壤土进行4个压力水头（0，-3，-6，-9 cm）下的圆盘入渗试验。结果表明，随着入渗水电导率的增大，土壤入渗率、吸渗率及导水率均随之增大，且红壤土在不同电导率的入渗水作用下土壤吸渗率的变化差异显著（P＜0.05）。在低水头压力下，两种水质入渗条件下测得的土壤导水率差异显著（P＜0.05）；在高水头压力下，两种水质入渗下测得土壤导水率差异不显著 ...
张, 佘冬立, 傅
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[Determination of polychlorinated naphthalenes in soil using accelerated solvent extraction-molecular sieves solid-phase extraction coupled with gas chromatography-tandem mass spectrometry]. [PDF]
Se Pu, 2022 Jin J +6 more
europepmc +1 more source
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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Strategies of high efficiency water usage promoted by microbial remediation in coal mining areas of western China [PDF]
The fragile ecological environment in the western coal mining areas of China, compounded by intensive mining activities, has led to water and soil erosion, soil degradation, and damaged root systems.
Chao WU +4 more
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Shuitu Baochi Xuebao, 2021 为研究晋西黄土区退耕还林后不同植被覆盖下土壤的入渗特征及土壤质量评价，采用野外双环入渗法测定土壤的入渗特征，并测定不同地类土壤的容重、孔隙度、有机质、全氮等指标，使用相关性分析研究不同类型植被覆盖下土壤的入渗性能及其与土壤理化性质的相关关系，并将各地类的土壤理化性质进行主成分分析。结果表明：（1）植被类型对于土壤渗透速率影响较大，表现为天然次生林>刺槐×油松混交林>刺槐纯林>油松纯林>灌木林地>苹果园地>荒草地>农田（玉米地）。（2）退耕还林后，不同植被类型的土壤理化性质差异显著（P灌木林地>苹果园地 ...
刘畅 +7 more
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Shuitu Baochi Xuebao, 2022 为探究不同坡度(5°,10°,20°,30°)条件下,不同质地砒砂岩土壤(灰白色、混合色、紫红色)的水分入渗特征及最优入渗模型。通过室内模拟土柱法对土壤的水分入渗特征和拟合结果进行对比分析。结果表明:(1)研究区不同坡面土壤容重在1.513~1.737 g/cm3,30°坡面下的灰白色砒砂岩土壤入渗能力较强,5°坡面下的紫红色砒砂岩土壤入渗能力较弱。(2) 在砒砂岩土壤一维垂直 入渗过程中,初始入渗率为2.000~8.600 cm/min,入渗时间3.500~5.000 min后达到稳定入渗率(0 ...
吴佩瑶 +4 more
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