利用TM影像分析巢湖悬沙分布及其原因  

Analysis of the Suspended Sediments Spatial Distribution and the Reason in Chaohu Lake by Use of TM Images

作　　者：李文达[1,2,3] 王心源[1,2,3] 周迎秋[1,2,3] 王化可[1,2,3] 李祥[1,2,3] 

机构地区：[1]安徽师范大学环境科学学院 [2]安徽师范大学安徽省遥感考古工作站,安徽芜湖241000 [3]中国科学技术大学地球与空间科学系,合肥230026

出　　处：《水土保持研究》2006年第2期179-181,共3页Research of Soil and Water Conservation

基　　金：安徽省自然科学基金项目(050450401);安徽省教育厅自然科学重点项目(2004kj165zd);中国科学技术大学博士后基金;安徽省高校学科拔尖人才基金

摘　　要：悬浮泥沙是重要的水质参数之一,其大小直接影响水体透明度、浑浊度、水色等光学性质及水生生态条件,其含量及其动态变化对该区的水下地貌的发展及冲淤变化等具有非常重要的影响。以巢湖为例,利用TM影像分析了巢湖泥沙的空间分布情况,指出巢湖泥沙的来源主要是各入湖河流携带的泥沙,其次是岸坡崩塌物形成的,并结合流域环境背景分析其原因,为巢湖的航道治理、湖区清淤提供了科学依据;最后提出了巢湖水质保护的对策。The suspended sediments is one of the important water quality parameters, it influences the optics nature, for example, the water transparency, turbidity, water color, etc. and the aquatic ecological conditions directly. The quantity of suspended sediments in water and the trends have very important influence to the development of the physiognomy and the deposition under water. TM images was used to analyse the spatial distribution of the suspended sediments of Chaohu,the sediments of Chaohu is mainly from the silts that the river carried which enter the lake, Secondly,the silts is produced from shore collapsing. Furthermore,the cause was discovered,which offered scientific basis for harnessing the channel and clearing the deposition ;at last the scientific strategy to protect the water quality was proposed.

关 键 词：悬沙 巢湖 TM影像 水质参数 透明度 浑浊度 

分 类 号：P343.3[天文地球—水文科学]