WU Liang-lin,HUANG Qiu-yan,ZHOU Yong-zhang,et al.Study on the Spatial Correlation between Karst Rocky Desertification and Human Activity Based on GIS/RS Technology——A case study of Duan county in Guangxi Province[J].Research of Soil and Water Conservation,2007,14(04):121-125.
基于GIS/RS的喀斯特石漠化与人文活动空间相关性研究——以广西都安瑶族自治县为例
- Title:
- Study on the Spatial Correlation between Karst Rocky Desertification and Human Activity Based on GIS/RS Technology——A case study of Duan county in Guangxi Province
- Keywords:
- karst rocky desertification; GIS; human activity; Du’an County
- 分类号:
- P642.25;TP79
- 摘要:
- 喀斯特环境脆弱是石漠化的自然基础条件,人们长期以来主要从自然驱动的角度研究石漠化演化问题.结合RS,GIS技术对广西都安县石漠化空间分析研究发现,石漠化的数量、强度与区域人口密度、经济密度、土地利用程度呈正相关关系,而与距居民点距离呈明显的负相关关系,喀斯特石漠化的人文驱动机制有基本的规律性,但人文驱动过程也具有复杂性.
- Abstract:
- Karst environmental vulnerability is the natural foundation condition of karst rocky(KRD).People have to pay much more attention to study KRD for a long time at natural driven mechanism.By taking Du’an county in Guangxi province as an example and based on RS & GIS technology analysis,the results show that the quantity and intensity of KRD is of positive correlation to population density,economy density and intensity of land-use,but it is of obvious negative correlation to distant from the settlements population sites,also show that the humanities driven mechanism of KRD have the basic laws,but complex.
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备注/Memo
收稿日期:2007-4-16;改回日期:2007-6-26。
基金项目:国家自然科学基金(40461001);广西科学研究与技术开发计划(桂科能05112001-8C);国家教育部支持中山大学985工程Ⅱ期GIS与遥感地学应用科技创新平台(105203200400006);产业与区域发展科学创新基地(105203200400010)
作者简介:吴良林(1964- ),男,广西人,副教授,博士生,从事资源环境一体化和区域可持续发展、GIS应用研究.