摘要
以甘肃省为对象 ,选择了湿润指数、大风天数、土壤质地和冬春季地表植被覆盖度做为土地沙漠化敏感性评价因子 ,采用地理信息系统技术进行土地沙漠化敏感性评价。并对单因子敏感性和综合敏感性的空间分布格局进行了分析 ,结果表明河西地区以高度敏感为主 ,陇中、陇东黄土高原以中度和轻度敏感为主 ,祁连山地。
As a case study in Gansu province, the damp index, days on strong wind, soil texture and vegetation cover in winter and spring in Gansu province on sensitivity to land desertification and their spatial heterogeneity are assessed based on GIS. The result indicates that high sensitive region in Hexi area, middle and light sensitive region in Longzhong and Longdong loess plateau, Qilian mountainous region, Longnan mountainous region and Gannan plateau are light sensitive or non sensitive area.
出处
《水土保持通报》
CSCD
北大核心
2002年第5期29-31,共3页
Bulletin of Soil and Water Conservation
基金
国家环保总局
中国科学院系统生态重点实验室资助项目
