西北林学院学报2011，Vol.26Issue(1)：166-170,5.
农牧交错带土地荒漠化动态景观格局分析-以靖边县杨桥畔镇为例
Dynamic Changes of Landscape Pattern during Desertification in Agriculture and Pasturage Interlaced Zone-A Case Study in Yangqiaopan Township
摘要
Abstract
By using the interpretation results of remote sensing images of 1980s(aerial photo), 1990s(spot), and 2007(alos), the dynamic changes of landscape pattern during the desertification in Yangqiaopan Township during 1980s-2007. The results showed that the desertification area appeared a tendency of increasing first and then decreasing, during the study period. The number of desertification patches congregated and expanded, while the landscape of sandy desertifieation was becoming more fragmented. Fortunately, the degree of the sandy desertification had manifested declining, because the severe desertification area had decreased by 1 246. 5 hm2 and the moderate desertification was taken in the leading position rather than severe desertification. But slight and moderate desertification had to be faced potential danger that may convert to severe desertification due to human activities and drought climate. Landscape diversity and evenness increased, and the shapes of heavy desertification patches tended to be simple,while the light, moderate ones tended to be complex, thus, the light and moderate desertifieation area could be more easily affected by human being.关键词
土地荒漠化/动态变化/景观指数分类
农业科技引用本文复制引用
屈佳,常庆瑞,王耀宗..农牧交错带土地荒漠化动态景观格局分析-以靖边县杨桥畔镇为例[J].西北林学院学报,2011,26(1):166-170,5.基金项目
国家自然科学基金项目(30872073,30571527) （30872073,30571527）
国家"十一五"科技支撑计划项目(2006BAD09B1603) （2006BAD09B1603）
