基于遥感影像的丹江口水库水域面积动态变化与原因研究

doi:10.11870/cjlyzyyhj2016011015

长江流域资源与环境 >> 2016, Vol. 25 >> Issue (11): 1759-1766.doi: 10.11870/cjlyzyyhj2016011015

基于遥感影像的丹江口水库水域面积动态变化与原因研究

刘海^1,2, 殷杰¹, 陈晶¹, 陈晓玲³

1. 湖北大学资源环境学院, 湖北武汉 430062;
2. 区域开发与环境响应湖北省重点实验室, 湖北武汉 430062;
3. 武汉大学测绘遥感信息工程国家重点实验室, 湖北武汉 430079

收稿日期:2016-02-29 修回日期:2016-06-07 出版日期:2016-11-20
通讯作者: 陈晓玲,E-mail:xiaoling_chen@whu.edu.cn E-mail:xiaoling_chen@whu.edu.cn
作者简介:刘海(1982~),男,副教授,博士,主要从事RS与GIS在流域生态环境中的应用研究.E-mail:liuhai11191@163.com
基金资助:
2015测绘地理信息公益性行业科研专项项目（201512026）；江西省重大生态安全问题监控协同创新中心专项项目（JXS-EW-08）

DYNAMIC CHANGE AND CASUE OF WATER AREA IN DANJIANGKOU RESERVOIR BASED ON REMOTE SENSING IMAGE

LIU Hai^1,2, YIN Jie¹, CHEN Jing¹, CHEN Xiao-ling³

1. Faculty of Resources and Environmental, Hubei University, Wuhan 430062, China;
2. Hubei Key Laboratory of Regional Development and Environmental Response(Hubei University), Wuhan 430062, China;
3. State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China

Received:2016-02-29 Revised:2016-06-07 Online:2016-11-20
Supported by:
Special Fund by Surveying &Mapping and Geoinformation Research in the Public Interest;the Collaborative Innovation Center for Major Ecological Security Issues of Jiangxi Province and Monitoring Implementation

摘要/Abstract

摘要： 丹江口水库是南水北调中线工程的水源地，水库水域面积的动态变化研究，对保障调水有重要意义。针对丹江口水库水域面积变化较快、短期波动明显，对南水北调中线工程稳定调水有较大影响的问题，采用2000年3月~2015年10月逐月遥感影像，基于归一化差异水体指数（NDWI）提取水体，研究了丹江口水库水域面积的动态变化。结果表明：丹江口水库近16 a来月际平均水域面积均超过400 km²，2~7月份为枯水期，8月份~翌年1月份为丰水期。按季节来看，夏季至秋季水库水域面积呈增大趋势，冬季至次年春季水库水域面积呈减小趋势，同时水库水域在秋季波动最为剧烈，冬季较为平缓。自2014年12月~2015年10月，受大坝加高蓄水影响，水库水域面积均维持在550 km²以上。水库的水位涨落形成的消落区主要集中在丹江水库北部、东部和汉江水库的西部。

关键词: 丹江口水库, NDWI, 水域面积, 动态变化, 遥感影像

Abstract: Danjiangkou reservoir is the water source area of Middle Route of South-to-North Water Transfer Project. Studying the dynamic change of reservoir water area, it has important significance to safeguard the diversion. In view of the Danjiangkou reservoir characteristic of water area change significantly faster and short-term fluctuations obviously, using month by month remote sensing image from March 2000 to October 2015, basing on normalized difference water index (NDWI) to extract water body, Danjiangkou reservoir water area dynamic change has been resrech. Results show that the monthly average water area in recent 16 years of Danjiangkou reservoir is more than 400 km², from February to July are drought period, and from August to the following year in January are wet period. According to the season, reservoir water area showed a trend of increase from summer to autumn, reservoir water area showed a trend of decrease from winter to spring, reservoir water fluctuation the most intense is in the autumn, and winter is more gently. Down area mainly concentrated in northern and eastern of Danjiangkou reservoir, and the west of the Han River reservoir.

Key words: Danjiangkou reservoir, NDWI, Water area, dynamic change, remote sensing image

中图分类号:

P236

刘海, 殷杰, 陈晶, 陈晓玲. 基于遥感影像的丹江口水库水域面积动态变化与原因研究[J]. 长江流域资源与环境, 2016, 25(11): 1759-1766.

LIU Hai, YIN Jie, CHEN Jing, CHEN Xiao-ling. DYNAMIC CHANGE AND CASUE OF WATER AREA IN DANJIANGKOU RESERVOIR BASED ON REMOTE SENSING IMAGE[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2016, 25(11): 1759-1766.

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