| 引用本文: | 袁敏,李忠武,谢更新,梁婕,赵新娜,姜燕松,彭也茹,张艳.三峡工程调节作用对洞庭湖水面面积(2000-2010年)的影响.湖泊科学,2014,26(1):37-45. DOI:10.18307/2014.0105 |
| YUAN Min,LI Zhongwu,XIE Gengxin,LIANG Jie,ZHAO Xinna,JIANG Yansong,PENG Yeru,ZHANG Yan.Effects of the Three Gorges Project on the water surface area of Lake Dongting, 2000-2010. J. Lake Sci.2014,26(1):37-45. DOI:10.18307/2014.0105 |
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| 三峡工程调节作用对洞庭湖水面面积(2000-2010年)的影响 |
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袁敏1,2, 李忠武1,2, 谢更新1,2, 梁婕1,2, 赵新娜1,2, 姜燕松1,2, 彭也茹1,2, 张艳1,2
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1.湖南大学环境科学与工程学院, 长沙 410082;2.湖南大学环境生物与控制教育部重点实验室, 长沙 410082
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| 摘要: |
| 以洞庭湖为研究对象,以11年(2000-2010年)Terra/MODIS 16 d最大值合成的植被指数数据产品集MOD13Q1和同期城陵矶水文监测站的水位数据为主要数据源,通过对NDVI和NIR分别设定阈值的方法,实现了洞庭湖水面面积的综合提取,分析了三峡工程建设背景下,洞庭湖水面面积的年际变化特征和年内变化规律,再结合城陵矶水位数据,对水位与水面面积之间的定量关系进行了深入分析.研究结果表明:三峡工程的运行,很大程度上控制着洞庭湖的入湖水量,对洞庭湖防汛工作有利;在气候变化、三峡水库的共同影响下,洞庭湖区水面面积整体上呈减少趋势;水面面积与水位的拟合结果显示两者具有良好的相关性,其中2000-2003年两者的确定性系数达到0.975. |
| 关键词: MODIS 水面面积 三峡工程 洞庭湖 |
| DOI：10.18307/2014.0105 |
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| 基金项目:国家自然科学基金重点项目(51039001);国务院三峡办洞庭湖湿地保护试点示范工程项目(SX2010-026);教育部新世纪人才资助项目(NCET-09-330)联合资助 |
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| Effects of the Three Gorges Project on the water surface area of Lake Dongting, 2000-2010 |
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YUAN Min1,2, LI Zhongwu1,2, XIE Gengxin1,2, LIANG Jie1,2, ZHAO Xinna1,2, JIANG Yansong1,2, PENG Yeru1,2, ZHANG Yan1,2
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1.College of Environmental Science and Engineering, Hunan University, Changsha 410082, P. R. China;2.Key Laboratory of Environmental Biology and Pollution Control(Hunan University), Ministry of Education, Changsha 410082, P. R. China
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| Abstract: |
| Taking MOD13Q1(vegetation indices 16-day L3 globe 250 m) dataset, which is a data production composited by Terra/MODIS of 11 years as a main data source of Lake Dongting, the water surface area of Lake Dongting were extracted by setting threshold values on NDVI(Normalized Difference Vegetation Index) and NIR(Near InfraRed). Under the background of the Three Gorges Project, combined with the data of water area and water level, the paper analyzed the interannual variation features and the variation rule within a year of water area in Lake Dongting, and deeply explored the quantitative relationship between water level and water surface area by integrating with water level data of Chenglingji hydrological station. The result indicated that the Three Gorges Project largely controls the water yield from the Yangtze River into Lake Dongting; Under the effects of climate change and the operation of Three Gorges Project, Lake Dongting area has a decreasing trend on the whole; The fitting result indicates that water surface area has good correlation with water level and the deterministic coefficient of the fitting curves was 0.975 from 2000 to 2003. |
| Key words: MODIS water surface area Three Gorges Project Lake Dongting |
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