摘要
洞庭湖作为我国第二大淡水湖泊,其特殊地理位置使其成为重要的生态保护区。上游三峡大坝水库建设会改变河流下游自然水文状态,而湖泊水域面积的改变会产生其他的一系列生态环境问题。利用遥感技术可以提取洞庭湖水面面积的各项数据,对比分析洞庭湖面积的变化规律以及引起变化的自然、人为因素。本文综述Landsat和MODIS影像洞庭湖面积监测中的应用,分析三峡大坝的建立对洞庭湖水面面积的影响,剖析洞庭湖水域面积变化对植被、气候、居民点的一系列影响。
As the second largest freshwater lake in China,Dongting Lake has become an important ecological protection area due to its special geographical position. The construction of upstream Three Gorges dam reservoir would change the natural hydrological state of the lower reaches of the river,and the alteration of lake water area wouldcause a series of other ecological environmental problems. By using remote sensing technology,the water surface area of Dongting Lake can be extracted,and the change law of Dongting Lake area and the natural and human factors caused by the change can be analyzed. This paper reviewed the application of Landsat and MODIS imagery in Dongting Lake area monitoring,and analyzed the impact ofthe establishment of Three Gorges Dam on Dongting Lake water area aswell as the impact of this change on vegetation,climate,settlements and other aspects.
出处
《农业网络信息》
2017年第1期90-95,共6页
Agriculture Network Information
基金
湖南农业大学大学生科技创新基金(编号:2016ZK03)
湖南省普通高等学校教学改革研究项目(编号:169)
