干旱区地理2011，Vol.34Issue(4)：649-653,5.
30多年来柴窝堡湖演化特征及其环境效应
Area change of Chaiwopu Lake and its environmental effects in the past 30 years
摘要
Abstract
Chaiwopu Lake is located at Chaiwopu Basin of Urumqi in the arid regions of Northwest China. The lake area change and its environmental effects were studied by interpreting remote-sensing images including MSS ( multi-spectral sensing system),Landsat TM/ETM,Modis and CBERS (China - Brazil earth resources satellite) from 1975 to 2008. The factors driving lake area change are also analyzed using data from Urumqi and Dabancheng meteorological stations, groundwater level and lake water depth data. By measuring the relief map (1 : 1 000 000), lake are-a of 1971 is 30 km2 including the adjoining west small lake. Lake surface area declined from 1971 to 2008 generally, but the lake area enlarged to 29.5 km2(in 2002)during the early 2000s because of the enhanced regional precipitations , successively, lake area declined with the declined regional precipitations and decreased ground water runoff, because Urumqi water resource projects abundantly draw out ground water for northern and western Chaiwopu lake. Lake surface level in 2008 is 1091.66 m,which is lower than the level of 1971 by 2. 2 m. Lake area has declined to 27 km2. Because Chaiwopu lake has a steep-shore and flat-bottom morphology, the scale of lake surface area change is not obvious in the initial periods of lake level declining,however,the lake level is in the turning point now,successively,lake area will shrink sharply. In the arid region,lake is very important in maintaining regional ecological environment, so the shrinked or disappeared water surface will result in some environmental problems such as total dissolved solid increased,soil and vegetation degenerated,etc,which will deeply affect the regional socio-economic developments.关键词
湖泊演化/环境效应/柴窝堡湖/干旱区Key words
lake evolution/ environmental effects/ Chaiwopu Lake/ arid regions分类
天文与地球科学引用本文复制引用
马龙,吴敬禄,吉力力·阿不都外力..30多年来柴窝堡湖演化特征及其环境效应[J].干旱区地理,2011,34(4):649-653,5.基金项目
中国科学院知识创新工程重要方向项目(KZCX2-EW-308 （）
KZCX2-YW-GJ04)和科技部基础研究项目(2006FY110600)共同资助 （2006FY110600）
