人民长江2017，Vol.48Issue(24)：41-47,7.DOI:10.16232/j.cnki.1001-4179.2017.24.009
塔里木河干流人工与天然绿洲转化及适宜比例研究
Study on artificial and natural oasis mutual conversion process and their proper ratio in main stream of Tarim River
摘要
Abstract
According to the Landsat TM/ETM images of 1990,2000 and 2010 in Tarim River basin,we extract the land use and land cover type based on RS/GIS.Based on the results we research the conversion process of artificial and natural oases in 1990~2010,and discuss the rational area ratio between artificial oasis and natural oasis.The results showed that:the artificial oasis was in a continuous expansion,and natural oasis area was in shrinkage in the basin from 1990 to 2010;the total oasis area in the period was in stable, so just a conversion between the artificial and natural oasis happened, namely the natural oasis of grassland and forest land, etc.gradually changed into artificial oasis of cultivated land, construction land, etc., at the same time,vegetation grow showed a declined trend that high -cover meadow changed into middle and low -cover meadow,mid-cov-er meadow changed into low -cover meadow,shrub land gradually degraded to meadow,and low-cover meadow degraded into desert;in 1990,2000 and 2010,the ratio of artificial oasis to natural oasis were 1:9,2:8,3:7 respectively,showing a upward trend.关键词
人工绿洲/天然绿洲/转化过程/适宜比例/塔里木河Key words
artificial oasis/natural oasis/conversion process/rational ratio/Tarim River basin分类
资源环境引用本文复制引用
赵新风,赵乐,徐海量,郑刚,赵邵军..塔里木河干流人工与天然绿洲转化及适宜比例研究[J].人民长江,2017,48(24):41-47,7.基金项目
国家自然科学基金项目(31400466,41171247,30970549) （31400466,41171247,30970549）
水利部公益性行业科研专项项目(201101049) （201101049）
