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
Effects of Tillage Disturbance on Slope Shape and Micro-topographic Features on Typical Sloping Cropland of Southwestern Alpine-canyon Area [PDF]
[Objective] The objective of this study was to investigate the effects of various tillage practices on on slope shape and micro-topographic features on typical sloping croplands of southwestern alpine-canyon area.
LIU Jingyi +8 more
core +1 more source
Effects of Different Micro Rainwater Harvesting Measures on Safflower Growth [PDF]
[Objective] The cultivation of safflower with micro rainwater harvesting technology on the hillslopes of the temperate desert grassland in Yili Valley was evaluated in order to provide technical support for dryland cultivation of safflower and for ...
Hu Guiqing +3 more
core +1 more source
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
Causes and stability analysis of the landslide at Tianbao Reservoir in Jingning County, Gansu Province [PDF]
On September 18, 2020, a landslide occurred on the left bank of Tianbao Reservoir in Tianbao Village, Sihe Town, Jingning County, Pingliang City, Gansu Province.
Guoying LI +4 more
core +1 more source
为探究不同立地条件下沙棘土壤水分分布特征和生长情况,采用样地试验,设置2种坡向(阴坡、阳坡)和3种坡位(坡顶、坡中、坡底)进行研究。研究表明:(1)各样地内的土壤水分季节变化可划分为消耗期(5—6月)、快速补充期(6—7月)和消退期(7—9月),天然降水对土壤含水率影响较大;(2)各样地内的土壤水分垂直分布为土壤水分显著变化层(Cv>0.2)、土壤水分次变化层(0.2>Cv>0.1)和土壤水分相对稳定层(Cv阳坡,不同坡位表现为坡底>坡中>坡顶。研究结果可为玛纳斯县前山地带沙棘造林提供参考和理论依据。
闵梓骁 +5 more
doaj
为了研究坡地总磷流失特征,探究植被覆盖和施肥对不同坡长坡地总磷流失的影响,以浙江省丘陵区坡面菜地红壤为研究对象,通过室内人工模拟降雨试验,在固定雨强120 mm/h、固定坡度20°、每场降雨试验的产流历时设计为30 min的条件下,选定不同坡长(1,2,3,4,5 m)、不同植被覆盖度(0,15%,30%,45%,60%,75%,90%)和不同施肥处理空白(CK)、无机复合肥(CF)、有机肥(OF)下进行模拟降雨试验。结果表明:(1)在不同施肥处理、坡长条件下,随着植被覆盖度的增加,单位投影面积总磷 ...
范晓娟 +4 more
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Failure mechanism and controlling measures of cut slope instability at Shouling temple, Luhuo County, Sichuan Province [PDF]
The Shouling temple in Luhuo County, Sichuan faces an urgent situation due to the construction of the Future Hall. A five-level excavation slope with a height of 21.8 m and a slope angle of 55° to 75° was formed on the northwest side of the site, leading
Gang LUO, Heming REN, Xingzheng WANG
core +1 more source
选择毛乌素地区东北部梁地上3种类型的小叶杨人工林,研究了坡位对其生长和土壤养分空间差异的影响。结果表明:整体上,坡位对小叶杨和沙柳的生长均有显著影响。小叶杨人工林植被生长均表现为:坡底>坡顶≥坡中,小叶杨和柠条的混交林比其他两个林型生长好。小叶杨人工林土壤有机质含量在坡底部位多数土层中含量较高,在0.57%~1.09%之间,坡中和坡顶部位含量较小,分别在0.36%~1.07%和0.32%~0.82%之间,这与植被生长较好密切相关;土壤有机质含量在不同坡位均呈波动式减少的趋势,0~10 ...
刘鑫, 满秀玲, 陈立明, 李文影
doaj +2 more sources
基于KINEROS2模型的降雨和坡长因子对土壤侵蚀过程影响的研究
以不同坡长(1,5,10,15,20 m)径流小区在不同降雨强度(25,50,75 mm/h)下人工模拟降雨试验为基础,通过KINEROS2模型对坡面侵蚀过程及侵蚀量进行模拟,对比分析不同坡长、降雨强度及其交互作用对坡面土壤侵蚀过程及侵蚀量的影响,并评价KINEROS2模型的模拟效果及适用性。结果表明:坡长与总径流量呈一元线性关系(R2>0.990),与总侵蚀量呈幂函数关系(R2>0.900);降雨强度与总径流量、总侵蚀量之间呈倍数关系增加,且总侵蚀量的增率是总径流量增率的2~3倍 ...
安妙颖, 吴玉恒
doaj

