Results 91 to 100 of about 4,473 (155)

Characteristics of Soil Saturated Hydraulic Conductivity and Its Influencing Factors at Different Landscape Positions in a Small Peak-Cluster Depression Watershed of the Karst Region [PDF]

open access: yes
[Objective] Peak-cluster depression is one of the important karst landform types. Exploring the influence of different landscape positions on soil saturated hydraulic conductivity (Ks) can provide a reference for further understanding of the hydrological
HOU Senzheng   +5 more
core   +1 more source

Research on sediment reduction benefits of engineering measures on waste rock slope under different rainfall intensities [PDF]

open access: yes
The dump slope of open-pit coal mines is characterized by steep gradients, loose structure, and poor stability, leading to severe soil erosion under heavy rainfall.
Gang LYU   +3 more
core   +1 more source

Enlightenment of rainwater management in foreign countries to sponge city construction in China [PDF]

open access: yes, 2016
介绍我国海绵城市建设的背景,分析海绵城市建设的必要性,讨论海绵城市建设与雨水管理之间的关系,认为可借鉴日本、美国、澳大利亚以及欧洲一些国家的"低影响开发技术"、"水敏性城市设计"、"绿色基础设施建设"等理念和技术,以及一些雨水管理法规与奖励政策,因地制宜地进行城市排水系统改造、雨水管理信息系统建设等,推进我国海绵城市的建设。The background of sponge cities construction in China is introduced,and the necessity of ...
廖朝轩, 高爱国, 黄恩浩
core  

Hydroecological effects of mining and its restoration ways in coal mining areas of Western China [PDF]

open access: yes
The mining areas in arid and semi-arid region have become important coal production bases to ensure China’s energy strategic security, however, coal development by large-scale and high-intensity mining has triggered a series of water resources and ...
Guangrong GE   +7 more
core   +1 more source

砾石含量及粒径对崩岗崩积体渗透特性的影响

open access: yesShuitu Baochi Xuebao, 2017
为探讨砾石对崩积体渗透性的影响,采用环刀法对不同砾石含量及粒径条件下崩积体入渗特性的变化进行研究。结果表明:(1)0%,10%,20%,30%砾石含量崩积体进入稳渗时间在9~10 min之间,40%,50%砾石含量崩积体进入稳定时间在19~20 min之间。(2)相同粒径砾石条件下,崩积体的初渗率、稳渗率、平均入渗率及入渗量随砾石含量的增加而增大;含2~3,3~5,5~10 mm砾石崩积体的入渗参数在10%,20%,30%砾石含量时变化不大;当砾石含量为40%时,入渗参数随着砾石粒径的增大而减小 ...
詹振芝   +6 more
doaj  

膜孔多向交汇入渗特性及其影响因素研究

open access: yesShuitu Baochi Xuebao, 2003
通过大量膜孔多向交汇入渗试验资料,分析了膜孔多向交汇入渗特性和影响因素,研究了膜孔直径、膜孔间距、土壤质地、土壤容重和土壤初始含水率等因素对膜孔多向交汇入渗的影响,提出了各影响因素与膜孔交汇入渗量之间的关系,并分析了膜孔多向交汇入渗机理,该研究成果可为进一步研究膜孔交汇入渗规律和膜孔灌技术提供参考。
李发文 费良军
doaj   +2 more sources

神府东胜煤田复垦区土壤入渗特性的试验研究

open access: yesShuitu Baochi Xuebao, 2008
土壤入渗性能是最基本的土壤物理特性之一。复垦区土壤的结构组成复杂,入渗特性有别于非矿区土壤。本文以神府东胜煤田马家塔复垦区为研究对象,利用圆盘入渗仪分别测定了复垦区乔木、林地、荒地、灌木林地和草地的土壤入渗特性,用经典统计学方法对复垦区土壤入渗性能的空间变异性进行了分析。实测结果表明,不同土地利用方式下的土壤入渗特性有较大的差异;在测定范围内,乔木林地、荒地、草地和灌木林地的稳定入渗率均表现出0 cm>—3 cm>—15 cm的规律性,其中草地稳定入渗率随吸力的变化更明显。研究表明 ...
付微, 邵明安, 黄明斌
doaj  

Analysis on factors controlling shallow failures of the cut slopes and its prevention by bio-engineering measures: A case study of the cut slopes along the highway from Shuangcheng to Dajiali [PDF]

open access: yes
Understanding the primary and secondary relations of influencing factors is crucial for predicting deformation and controlling collapse in cutting slopes. Using a cutting slope along the Shuangcheng to Dalijia expressway in Gansu Province as the research
Changgen YAN   +4 more
core   +1 more source

腐殖酸对滨海盐碱土水盐运移特征的影响

open access: yesShuitu Baochi Xuebao, 2020
为了探索腐殖酸对土壤水盐运移特征及入渗参数的影响,进行了5种施量(0,1,3,5,7 g/kg)的一维垂直入渗试验。结果表明,入渗时间相同,累积入渗量和湿润锋均随腐殖酸施量的增加而减小;相同入渗深度随腐殖酸施量的增加所需的入渗时间、累积入渗量、剖面平均含水量均不断增加。入渗完成时相较于CK,施量为7 g/kg时累积入渗量、含水量分别增加8.0%,10.0%;施加腐殖酸可促进土壤剖面盐分向土壤深层运移并有效降低土壤pH,相较于CK施量为7 g/kg时0—20 cm土层平均脱盐率增加10.2 ...
李晓菊   +4 more
doaj  

希拉穆仁天然草地不同群落土壤入渗特征

open access: yesShuitu Baochi Xuebao, 2017
为了解希拉穆仁天然草地土壤入渗特征,以未经人为干扰的围封草地为研究对象,利用双环法测定了以蒙古韭(Allium mongolicum)、银灰旋花(Convolvulus ammannii)、羊草(Leymus chinensis)、洽草(Koeleria asiatica)、克氏针茅(Stipa krylovii)、短花针茅(Stipa breviflora)6种植物为优势种的不同群落结构下土壤入渗过程,分析其入渗特征及影响因素。结果表明:各样地土壤入渗速率随时间变化过程大致分为3个阶段 ...
王则宇   +5 more
doaj  

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