雅安地区水土流失危险度评价、分区和发展趋势分析
2002
李辉霞
综合水土流失现状和驱动力两个方面,建立了水土流失危险度综合评价模型,并利用此模型对雅安地区的水土流失危险度作了评价和分区。宝兴和荥经被划为轻度危险区,雅安、名山、芦山和天全被划为中度危险区,石棉和汉源被划为重度危险区。通过危险度指数和现状强度指数的比较,可看出雅安、名山、宝兴、芦山和天全的水土流失发展仍呈加剧的趋势,其中雅安和名山的水土流失发展形势尤其严峻,很可能由轻度水土流失区跃为中度水土流失区。
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Publisher
Editorial Department of Journal of Soil and Water Conservation
Other Subjects
驱动力; 现状强度指数; 危险度; 水土流失
Language
Chinese
2026-02-18
2026-03-17
DOAJ
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