Results 11 to 20 of about 2,995 (141)
Stability Assessment of Hesigewula Open-pit Coal Mine Based on Geomorphic Information Entropy of Watershed System [PDF]
, 2023 [Objective] The stability evaluation of an open-pit mining area was carried out in order to provide technical support for landform remodeling, ecological environment restoration, and soil erosion monitoring in a mining area.
Li Wei +6 more
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Shuitu Baochi Xuebao, 2002 根据长江上游社会经济、自然环境和水土流失的演化过程,将长江上游近5000年划分为5个水土流失期:1.无明显水土流失期(公元前316年以前);2.水土流失渐增期(公元前316～1644年);3.水土流失期明显增长期(1645～1949年);4.水土流失猛增期(1950～1988年);5.水土流失局部控制期(1989～2010年)。
柴宗新 范建容
doaj +2 more sources
Shuitu Baochi Xuebao, 1995 通过调查分析阐述了辽宁东部山区４种人为生产活动与水土流失的关系；即坡地种植与土壤流失；陡坡开垦与土壤流失；过度放蚕与水土流；陡坡栽参与水土流失。并指出了谝我防治水土流失的途径。
黄毅 党福江
doaj +2 more sources
Spatial and Temporal Changes and Driving Factors of Soil Erosion in North Piedmont of Yinshan Mountain [PDF]
, 2023 [Objective] The spatial and temporal changes of soil erosion and its influencing factors in the north piedmont of Yinshan Mountain from 2000 to 2020 were analyzed in order to provide scientific guidance for soil erosion control and land space planning in
Aruhan, Pan Haiwei, Wu Shuai
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Shuitu Baochi Xuebao, 2003 水土流失是破坏自然环境最严重和最突出的问题,我国是水土流失非常严重的国家,几乎遍 及所有的省、自治区、直辖市,共有水土流失面积492万km2,占国土面积的51.2%.严重 的水土流失不仅对自然环境造成破坏,也严重制约国民经济的发展.水利水电工程、矿产资 源开发、公路铁路建设、城镇开发建设等西部开发工程中,都将遇到水土流失与环境问题, 本文阐述了西部地区水土流失与环境的现状,分析了工程建设对水土流失与环境的影响,提出西部开发工程中防治水土流失的措施.
党进谦, 阎宁霞, 李靖
doaj +2 more sources
Research on Environmental Economic Costs of Soil Erosion in Chaohu Basin [PDF]
, 2006 本文首先对水土流失经济损失的国内外研究现状进行了总结概述。在此基础上,以巢湖流域为例,针对流域特点及水土流失状况,确定水土流失造成的养分损失、泥沙淤积损失、水分损失及耕地损失四项实物型损失量作为衡量水土流失环境经济损失的指标,选用替代花费法、恢复费用法及影子工程法等对水土流失的经济损失进行了评估和货币化计量。Based on the summarize of the research state of economic costs of soil erosion both home and ...
吴开亚, 王玲杰
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World Water Policy, Volume 10, Issue 4, Page 1170-1186, November 2024.Abstract Sustainable land management (SLM) practices is a key to reducing rates of land degradation and has proven to ensure water security by increasing soil moisture availability, decreasing surface runoff, decreasing soil erosion, increasing infiltration, and decreasing flood discharge. Land degradation is adversely affecting over 75% of the Earth's
Melku Dagnachew +5 more
wiley +1 more source
, 2012 分区边界的确定是生态分区的重要步骤,但目前多数水生态分区的边界确定以定性分析、专家判断为主。本研究以洱海流域为例,建立了一套两级分区体系。该体系基于GIS技术,用子流域作为分区基本单元,并用相关分析法,定量筛选一、二级分区指标。其中,一级分区指标为高程、坡度和植被归一化指数(NDVI),二级分区指标为农田百分比和城镇百分比。通过指标图层的叠加和重分类,合并同质性子流域,从而将洱海流域划分为5个一级区和9个二级区。藻类群落分布的验证结果表明分区合理。本研究将定量分析和子流域边界应用于水生态分区 ...
唐佳 +6 more
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World Water Policy, Volume 10, Issue 4, Page 1119-1161, November 2024.Abstract The present paper critically examines water‐assisted developmental projects and their associated conflicts through the lens of political ecology, with a particular focus on hydroelectric power generation in the Global South. These projects often catalyze localized socio‐cultural, political, and ecological tensions, especially in indigenous ...
Surajit Kar +2 more
wiley +1 more source
, 2004 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
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