【Key words】 desertification evaluation； remote sensing； visual interpretation； vegetation index； landscape ecology；
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sandy desertification evaluation 沙漠化评价
Desertification evaluation indices 荒摸化评价指标
Remote sensing information is widely used in the study of desertification evaluation on account of its merits in its cyclical, macro and systematic aspects.
遥感信息以其周期性、宏观性和系统性方面的优势，在土地荒漠化评价中得到广泛应用。
Remote sensing, with the merit of large information capacity, huge observation scope, high accuracy and speed, has become the main means of regional desertification monitoring and evaluation.
近些年来，遥感以其信息量大、观测范围广、精度高、数据更新速度快等优点，已成为区域荒漠化监测与评价的主要手段。
Using multidimensional gray dynamic evaluation, comparisons of both static change and dynamic change on desertification control efficiency were studied in Hequ County, Shanxi Province.
通过对山西省河曲县荒漠化防治效益的多维灰色动态评估，实现了静态的横向比较和动态的纵向比较。
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