中国西南岩溶山区土地利用的基底效应研究  

The Basement Effects of Land Use Change in Karst Mountainous Areas,Southwestern China: Current Performance and Future Trends

作　　者：邵景安[1] 倪九派[2] 

机构地区：[1]重庆师范大学地理科学学院,重庆400047 [2]西南大学资源环境学院,重庆400716

出　　处：《自然资源学报》2009年第5期763-771,共9页Journal of Natural Resources

基　　金：国家重点基础研究发展计划项目"西南喀斯特山地石漠化与适应性调控"(2006CB403200);国家科技支撑计划课题子项目"喀斯特山地农耕区水土保持关键技术研究与示范"(2006BAC01A16);国家科技支撑课题子课题"三峡库区土地利用对农业面源污染物消纳的影响与示范"(2007BAD87B10-08)

摘　　要：西南岩溶山区的水文地质-地貌基底,塑造独特的驱动土地利用格局演变的流水-斑块自然营力,如水土资源组合、小生境结构形成、化学元素富集、特定作物指示等,控制着人们如何才能重建该区健康生态-经济范型的根本过程,以获得清晰的基底环境与土地利用间效应与响应的科学认识。为更好做好岩溶山区生态完整性的恢复与人们福祉的提高,本区未来的重点研究方向为:①认识基底环境与土地利用间的相互关系,重建重要历史时期的土地利用格局,开展合适土地利用实践的选择为适宜性手段,重建岩溶景观生态完整性;②理解基底环境内的长时间序列的土地利用过程,分析它们的不同健康程度,整体认识岩溶景观格局的形成与演化,为合适生态-经济范型的厘定提供科学依据和成功途径;③理解认识基底选择合适的利用行为与违背基底受到惩罚这一规律,构建西南岩溶山区水-土资源脆弱性成因的解释框架,找出未来该区土地利用与基底环境间的效应互馈关系。The basement of water/geological-relief shapes unique physical dissolution-patch structures, which drive the changes of land use patterns, such as match of water and land resources, formation of small habitats, enrichment of chemical element, and instructions of specific crop, in karst mountainous areas, southwestern China. These drivers control the fundamental process, how people can redevelop healthy ecological and economical paradigm. A volume of literature on land use is largely devoted to the science of land use processes, and there is an acknowledged lack of information available to the feedbacks between water/geological-relief and land use activities. In order to obtain the clear findings of the effects and responses between them, the objective of this paper undertook to a review of the literature beginning to address the issue, and found good ideas to restore ecological integrity and enhance people＇ s well-being. Understanding of how these different factors interact in specific environmental, historical and social contexts to produce different uses of land, therefore, need to be discovered for identifying the causes of land use change. In the future, the improved people＇ s living standard, and in contact with karst landscapes on a daily basis will lead to be better informed and directed research on the impacts of human occupancy on karst ecosystems, in terms of basement environment. Subjects of particular interest were identified, and included, in the order of priority： mastering the relationships between water behavior and ecological health, and understanding the cause-effect functions of vulnerable water and soil system ground scape, （among models, vulnerability and fragility） ; recognizing the spatial distributions of underkarst landscape, and discovering the environmental effects among underground karst land-land use and human health; finding out the key links of breaking the vicious cycle of ＂degradation-poverty＂, measuring the relationships of inappropriate land ronmental degradation,

关 键 词：西南岩溶山区 土地利用 非生物环境 人类扰动 基底效应 

分 类 号：P642.25[天文地球—工程地质学]