Land use change and its ecological effect in Qian’an County of Jilin Province

被引：0
|
作者：
Karl E.Ryavec
机构：
[1] Department of Geography
[2] MN55455
[3] USA
[4] University of Minnesota
来源：
Journal of Geographical Sciences | 2003年 / 04期
基金：
中国国家自然科学基金;
关键词：
land use change; ecological effect; land degradation; Qian’an County;
D O I：
暂无
中图分类号：
F301.2 [土地管理、规划及利用];
学科分类号：
083306 ; 0903 ;
摘要：
Based on GIS and statistical methods, with the help of searching historical literatures andcalculating the landscape indices, the land use changes of Qian’an County in both spatial and temporalaspects from 1945 to 1996 has been analyzed in this paper. And the driving forces of land use changesand their ecological effects are discussed too. The main findings of this study are as follows:(1)Landuse changed greatly in Qian’an during 1945-1996, characterized by a decrease in grassland, wetlandand water bodies,and an increase in cultivated land, saline-alkali land, and the land for housing andother construction purposes. Grassland decreased by 175,828.66 ha, and cultivated land increased by
引用
收藏
页码：41 / 46
页数：6
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