干旱区生态环境知识资源中心(Arid): 南水北调西线工程对黄河流域生态环境的影响分析

Arid

	南水北调西线工程对黄河流域生态环境的影响分析
其他题名	Impact of Project of Water Diversion from South to North Via Western Course to Ecological Environment in Yellow River Basin
	李永乐; 佘小光
来源期刊	水土保持学报
ISSN	1009-2242
出版年	2005
卷号	19 期号:4 页码:160-
中文摘要	黄河流域地处我国北方干旱和半干旱地区, 水资源贫乏,人均占有水资源仅为全国平均水平的1/3,森林覆盖率仅为6%,是全国平均水平的50%.水土流失严重,中上游土壤侵蚀模数一般在5 000 t/(km2·a)以上.黄河含砂量居世界之最,多年平均含砂量达33 kg/m3,由于水资源量的逐年减少和需求量的逐年增大,引起了土地沙漠化,沙尘暴以及黄河水质恶化等一系列环境问题.南水北调西线工程拟从水量充沛的长江、澜沧江、怒江流域调部分水量进入黄河,总调水量170亿m3.其中用于农、林、牧业方面的灌溉水量占总调水量的55%,可以有效地增加植被和控制水土流失,遏制土壤沙漠化;能够缓解黄河水资源的供需矛盾,改善黄河水质;同时还可以增加黄河下游河道的冲刷长度,减少泥沙淤积,有利于黄河下游河道的稳定性.
英文摘要	The Yellow River basin is located in arid and semi-arid region of the northern of our country. In here the water resource is poor. The per capita water resource is only 1/3 of the average national level. The forest cov-erage rate is only 6%. It is 50% of the average national level. Water and soil erosion are serious. On the Middle and Upper of the Yellow Rive, the soil erosion modulus is generally above 5 000 t/(km2#a). The sand content of the Yellow River occupies the first in the world. Average sand content of many years have reached 33 kg/m3. The reduction of water resource quantity and Increase of demand year by year have caused a series of environmen-tal questions, such as the land desertification, the sandstorm and the Yellow River water’s deterioration, etc. Pro-ject of Water Diversion from the South to the North Via the Western Course is transforms some water from Changjiang River, Lancangjiang River, Nujiang River basin of water yield plentiful to the Yellow River. The amount of water yield 17 billion m3. The water amount of irrigation among them is used in agriculture, forest, an-imal husbandry occupies 55% of water quantity. It can increase vegetation, controlling water and soil erosion and contain the soil desertification. It can alleviate the imbalance between supply and demand of the water resource of the Yellow River, and improve the water quality of the Yellow River. At the same time, they can increase the length of eroding of the downstream river of the Yellow River and reduce the silt to deposit. It is favorable to the stability of the downstream river of the Yellow River.
中文关键词	南水北调西线工程 ; 黄河流域 ; 生态环境
英文关键词	Project of Water Diversion from the South to the North Via the Western Course Yellow River Basin ecological environment
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Environmental Sciences & Ecology
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
CSCD记录号	CSCD:2015435
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/206647
作者单位	李永乐, 华北水利水电学院, 郑州, 河南 450011, 中国.; 佘小光, 华北水利水电学院, 郑州, 河南 450011, 中国.
推荐引用方式 GB/T 7714	李永乐,佘小光. 南水北调西线工程对黄河流域生态环境的影响分析[J],2005,19(4):160-.
APA	李永乐,&佘小光.(2005).南水北调西线工程对黄河流域生态环境的影响分析.水土保持学报,19(4),160-.
MLA	李永乐,et al."南水北调西线工程对黄河流域生态环境的影响分析".水土保持学报 19.4(2005):160-.