广西岩溶区县域石漠化治理模式适宜性评价

Suitability Assessment of Karst Rocky Desertification Control Patterns in Karst Counties of Guangxi,China

本文以《岩溶地区石漠化综合治理规划大纲》(2006—2015年)国家下达的广西75个岩溶石漠化治理县为研究对象,通过筛选和确定典型岩溶地貌背景下具有代表性的5种石漠化成功治理模式,分析5种石漠化治理模式的特征和异同,选取15项指标进行广西岩溶区县域尺度石漠化治理模式适宜性评价。利用模糊评价进行广西岩溶区县域石漠化治理聚类分析,并与自上而下的主观预测结果对比。最后进行县域尺度石漠化治理模式分区,共分为4个区域。将分区和5种成功的石漠化治理模式对应,实现县域喀斯特石漠化治理模式的适宜性评价及治理模式的推广,以期为广西喀斯特地区石漠化综合治理工作提供参考。

According to The Planning Framework of Comprehensive Controls for Karst Rocky Desertificatio Regions published by the State Council,there are 75 counties of rocky desertification in Guangxi.In this study,the specified counties in Guangxi were taken as the research subjects.Firstly,five successful control patterns under different geographic background were collected and summarized.The characteristics,similarities and differences among the five patterns were analyzed roundly.Then,the control patterns were regionalized by a bottom up method.The index system of suitability assessment with 15 indices for county scale was established and the fuzzy comprehensive assessment was conducted.And the counties were clustered into four regions.Finally,the assessment results of the twomethods were compared and adjusted.The Karst counties of Guangxi were regionalized and the suitable control patterns for Karst counties were determined.The results were expected to provide references for the comprehensive controls of Karst rocky desertification.