摘要
利用长时间序列的MODIS数据,采用水体指数动态分析的方法,对2000~2013年呼伦湖的水体面积进行了动态变化分析,并结合区域气候数据进行了驱动力分析.结果表明：2000~2012年期间,呼伦湖流域水体面积从2286km2减少至1773km2,减少22.4%,主要减少部分分布在湖体东北部和南部;2013年水体面积尤其是南部水域水体面积略有所恢复.呼伦湖主体湖区面积的变化与年均温呈现不显著的负相关关系.
Water area dynamic change of the Hulun lake was analyzed from 2000 to 2013 using long time-series MODIS data and water index dynamic analysis method. The driving force of the change was also analyzed by combining meteorological data. The preliminary results showed that the water area of the lake decreased from 2286km2 in 2000 to 1773km2 in 2012 and the decreasing rate was 22.4%. The drastic changes mostly happened in the northeast and south of the lake. Due to the great increase of precipitation in 2013, the water area restored to 1883km2 and the main growth happened in the south of the lake. The driving force analysis showed the variation of water area correlated negatively with an average annual temperature and positively with the annual total precipitation. However, the level of significance was for the precipitation higher than temperature.
出处
《中国环境科学》
EI
CAS
CSCD
北大核心
2016年第3期894-898,共5页
China Environmental Science
基金
国家“863”项目(2012AA12A310)
国家高分重大科技专项(05-Y30B02-9001-13/15-9)
