Effects on Atmospheric Influence Depth for an Anchored Vegetation Reinforcement System to Protect Newly Excavated Expansive Soil Slopes [PDF]
, 2022 [Objective] The data that could provide a reference basis for the application of an anchor-reinforced vegetation system (ARVS) were obtained to protect newly excavated slopes with expansive soil.
Chen Junting, Tang Linqiang, Xu Yingzi
core +1 more source
基于WEPP模型的工程建设中施工便道边坡水土流失特征——以林芝市巴宜区为例
Shuitu Baochi Xuebao, 2023 工程建设中施工便道导致的水土流失与传统土壤侵蚀不同,施工便道改变原自然坡面形态及水文过程,致使植被破坏、地表裸露,并形成路面、挖填边坡等多个侵蚀产沙部位,结构松散的路堑及边坡对降雨的响应更强、速度更快,土质低等级道路所引起的土壤侵蚀问题占比很大,因此研究可为工程扰动中施工便道的水土流失防治提供基础依据。以林芝市巴宜区为研究对象,采用WEPP模型对工程扰动下不同降雨条件、不同坡度坡长情况下施工便道边坡径流量、土壤流失量进行模拟分析,揭示施工便道边坡水土流失特征规律和关键影响因素。结果表明:(1 ...
于洋 +6 more
doaj
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
core +1 more source
Shuitu Baochi Xuebao, 2016 通过野外水流冲刷试验，对比分析了不同坡长条件下坡面产流产沙及氮磷流失特征。结果表明，上方来水流量一定时，坡长越长，其坡面入渗量越大，径流量越小，且存在一个临界坡长，使得径流量和入渗量相当，累计径流量与坡长是负线性关系。随着坡长增加，产沙量增大，单位坡长的泥沙流失量在各坡长条件下差异并不显著（P＞0.05）。累计泥沙量随着坡长增大而增大；幂函数比指数函数能更好的描述硝态氮和水溶性磷浓度变化过程；泥沙中硝态氮和有效磷的含量整体上随时间呈减小趋势。坡长越长，其养分富集率越大；随着坡长增大 ...
赵光旭, 张鹏宇
doaj
Shuitu Baochi Xuebao, 2023 随着经济社会的高速发展以及工程建设项目的快速递增,大量生产建设项目扰动地表并破坏原地貌植被,大范围且不平衡的挖填活动使得多余的土石混合堆积,尤其在山区工程建设形成的多余土石混合介质,堆积在沟道和河道上游及边坡,在强降雨条件下易发生严重水土流失,甚至造成滑坡、泥石流等灾害。以人为重塑工程堆积体为研究对象(坡度25°),通过模拟降雨试验,开展极端降雨条件下(降雨强度为2.5 mm/min)不同坡长(3,5,6.5,12 m)及砾石质量分数(0,10%,20%,30 ...
李魁, 王文龙, 李建明
doaj
Construction Experiment and Mechanical Modeling of Soil-Concrete Composite Slope Protection Technology [PDF]
, 2023 [Objective] The construction and mechanical model of soil-concrete composite slope protection technology were analyzed in order to provide scientific reference for the implementation of slope modification engineering in soil-rock mountain area. [Methods]
Gao Zhaoliang +5 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
Shuitu Baochi Xuebao, 2018 坡面径流的含沙特征是研究坡面侵蚀产沙的重要内容。为了研究坡面径流含沙特征及动态过程，揭示坡面径流含沙量随雨强和坡长的复合关系。采用人工模拟降雨的方式，通过不同坡长和雨强的组合试验，基于跨雨强和跨坡长的综合性分析思路，对特定坡度（20°）下，5个坡长（1，2，3，4，5 m）13个降雨强度的试验监测数据进行了分析。结果表明：（1）坡长不同含沙量与雨强的相关性不同，以2，3，4 m坡长含沙量随雨强增加的规律性最明显。5 m坡长的相关性最差。1 m坡长的直线相关性较好，但增长斜率很小。由此可推得 ...
张锐波, 张丽萍, 付兴涛
doaj
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
Effects of Different Micro Rainwater Harvesting Measures on Safflower Growth [PDF]
, 2023 [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