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贵州高原石漠化敏感性与宏观地貌的空间关联分析
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引用本文:闫利会,周忠发,谢雅婷,黄登红.贵州高原石漠化敏感性与宏观地貌的空间关联分析[J].中国岩溶,2018,37(3):400-407. YAN Lihui,ZHOU Zhongfa,XIE Yating,HUANG Denghong.Analysis on spatial correlation between sensitivity of rocky desertification and macroscopic geomorphology in Guizhou Plateau[J].Carsologica Sinica,2018,37(3):400-407.
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闫利会 贵州师范大学喀斯特研究院/贵州省喀斯特山地生态环境国家重点实验室培育基地 
周忠发 贵州师范大学喀斯特研究院/国家喀斯特石漠化防治工程技术研究中心 
谢雅婷 贵州师范大学喀斯特研究院/贵州省喀斯特山地生态环境国家重点实验室培育基地 
黄登红 贵州师范大学喀斯特研究院/国家喀斯特石漠化防治工程技术研究中心 
基金项目:国家自然科学基金青年基金“喀斯特峰丛洼地地貌形态耦合模式及机制研究(41301504)”、国家自然科学基金地区项目“喀斯特石漠化地区生态资产与区域贫困耦合机制研究”(41661088);贵州省研究生科研基金立项课题“基于喀斯特生态环境大数据的石漠化识别方法与演变研究”(黔教研合KYJJ字[2016] 012)
中文摘要:以中国南方典型喀斯特高原-贵州高原为研究区,通过构建石漠化敏感性评价指标体系及评价模型,利用GIS空间分析方法,对贵州高原石漠化敏感度的空间分布特征及其与宏观地貌类型的空间关联格局进行探讨。结果表明:(1)贵州高原石漠化敏感性以中高度敏感为主,占国土总面积的45.54%,生态环境脆弱,发生石漠化的概率较高;(2)不同等级敏感性之间均具有显著的正相关关系,不敏感等级与轻度敏感等级相关性在0.05水平上显著相关,轻度与中度、高度和极敏感等级之间相关系数均在0.9以上;(3)不敏感区域主要分布在低海拔平原、丘陵和台地区,轻度和中度敏感区域主要分布在高海拔丘陵、平原和台地,高度以上敏感区域主要分布在高、中、低山和河谷地区;(4)地形起伏度和海拔对于石漠化的敏感性在地貌类型上的空间分布起着重要的作用。
中文关键词:石漠化敏感性  地貌单元  空间关联  GIS分析  贵州高原
 
Analysis on spatial correlation between sensitivity of rocky desertification and macroscopic geomorphology in Guizhou Plateau
Abstract:In this work, taking the typical karst plateau of Guizhou Plateau,southwest China, is used as the study area, we constructed an evaluation index system and evaluation model for assessing rocky desertification sensitivity, as well as established its spatial relation with different landform types. The results show that, (1) The sensitivity degree of rocky desertification in the karst area is mainly medium and high, accounting for 45.54% of the total land area, with a fragile ecological environment and high probability of rocky desertification; (2) There is highly positive correlation between different sensitivities of rocky desertification. The correlation between the low sensitivity and middle sensitivity is significantly correlated at the 0.05 level, and the correlation coefficient between mild and moderate, high and extremely large sensitivity is above 0.9; (3)The insensitive areas are mainly distributed in the areas of plain, hill and mesa, and the mildly and moderately sensitive ones are mainly distributed in hills, plains and platforms; while the regions with high sensitivity of rocky desertification are located in mountains and valleys; (4) The topographic relief and altitude play an important role in the spatial distribution of landform types of rocky desertification sensitivity. The results provide a theoretical basis for comprehensive management of karst rocky desertification.
keywords:rocky resertification sensitive, macroscopic geomorphic unit, spatial correlation pattern, GIS analysis,Guizhou Plateau
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