干旱区研究2013,Vol.30Issue(2):211-218,8.
1990-2010年新疆额尔齐斯河流域湿地景观动态变化
Dynamic Change of Wetland Landscapes in the Ertix River Basin, Xinjiang during the Period of 1990-2010
摘要
Abstract
In this paper, the changes of landscape patterns at both landscape scale and patch scale in the Ertix River Basin, Xinjiang, China were studied based on the satellite images in 1990, 2000 and 2010. The landscape analysis was accomplished using GIS and FRAGSTATS software, and the analyzed items included the various landscape indices relating to the temporal and spatial change of wetland landscape patterns during the period from 1990 to 2010. The results showed that the number of wetland patches was increased, shape of the wetland patches became more irregular, and the wetland landscapes were more fragmental. The total area of wetland patches was enlarged because of the increase of precipitation in the basin since the 1980s, and the increase of landscape fragmentation was mainly caused by the increase of human activities. To sum up, the serious fragmentation of wetland landscapes in the basin was affected by both natural and human factors, and the human adverse impact on the wetland landscapes became more and more serious.关键词
湿地/景观格局/空间异质性/驱动因素/额尔齐斯河流域/新疆Key words
wetlands/ landscape pattern/ spatial heterogeneity/ driving factor/ Ertix River Basin/ Xinjiang引用本文复制引用
杨涵,陈学刚,王亚奇..1990-2010年新疆额尔齐斯河流域湿地景观动态变化[J].干旱区研究,2013,30(2):211-218,8.基金项目
国家自然科学基金地区科学基金项目(40961012/D0103) (40961012/D0103)
新疆维吾尔自治区青年自然科学基金项目(2010211B11) (2010211B11)