2000-2010年东北地区湖泊动态变化及驱动力分析  

Dynamics and driving force of lake changes in northeast China during 2000-2010

作　　者：李宁[1,2] 刘吉平[1] 王宗明[2] 

机构地区：[1]吉林师范大学旅游与地理科学学院,四平136000 [2]中国科学院东北地理与农业生态研究所,长春130102

出　　处：《湖泊科学》2014年第4期545-551,共7页Journal of Lake Sciences

基　　金：国家自然科学基金项目(41071037);国家重点基础研究发展计划"973"项目(2012CB956103);中国科学院战略性先导科技专项项目(XDA05050101);教育部新世纪优秀人才支持计划项目(NCET-12)联合资助

摘　　要：以2000、2005和2010年的Landsat TM和ETM遥感影像为主要数据源,利用面向对象的分类方法,提取3期东北地区湖泊数据;在GIS技术的支持下,分析了过去10年东北地区湖泊的时空变化特征,并对导致湖泊面积变化的自然和人文驱动因素进行分析.结果表明:2000-2010年间,东北地区湖泊面积由12234.02 km2减少至11307.58 km2,其中,2005-2010年间湖泊萎缩剧烈程度大于2000-2005年;湖泊数量先增加后减少,10年间共减少了4092个;10年间天然湖泊面积大幅减少,人工湖泊面积略增加;研究区内西北方向湖泊萎缩程度小于东南方向,质心向西北偏移;湖泊变化受自然因素和人类活动的共同影响,人类活动叠加在自然因素之上,对湖泊变化产生了放大作用.Based on Landsat TM and ETM remote sensing images in 2000, 2005 and 2010 and an objectoriented classification method, this paper extracted information on the temporal and spatial change characteristics and the driving forces for lake areas in northeast China during the past 10 years （2000—2010）. The results showed that during the past 10 years, the area of those lakes has reduced from 12234.02 km2 to 11307.58 km2, with a greater shrinking rate in the later five years （ 2005 — 2010）. Meanwhile, natural lake area has significantly reduced while artificial lake area slightly increased during the past 10 years. In the study area, lake shrinkage in the northwest is less than that in the southeast, resulted in the centroid moving to the northwest. Those changes resulted from both natural factors and human activities, and the coupled effects greatly accelerated local environment changes.

关 键 词：湖泊面积 动态变化 驱动力 RS GIS 中国东北 

分 类 号：P343.3[天文地球—水文科学] P237[天文地球—地球物理学]