摘要
喀斯特石漠化代表了世界上一个比较独特的荒漠类型,即湿润区石质荒漠化。目前石漠化面积快速扩展的总体趋势并没有得到有效遏止,因对石漠化发生机制与喀斯特生态系统稳定性机制还不清楚,同时缺乏比较完善的石漠化防治理论和技术体系也是重要的原因之一。较为详细地介绍了目前西南喀斯特山区石漠化过程和适应性生态修复研究方面存在的基础理论问题,包括喀斯特石漠化的时空格局变化与驱动力、喀斯特山地的侵蚀过程、驱动力与危险性、以水为纽带的喀斯特生态系统退化和石漠化过程中的生物地球化学过程、喀斯特受损生态系统的适应性修复、喀斯特生态系统的服务功能优化和综合调控等方面,阐述了上述几个研究领域的研究现状与可能的发展方向;强调喀斯特石漠化是一个非地带性问题,不是纯自然过程,而是与自然、社会与经济紧密相关,需要以喀斯特科学为主的多学科交叉与综合集成研究。
Karst rocky desertification is a unique kind of land desertification which happens in humid climate area in China. There has not been enough knowledge about the karst ecosystem stability and the forming mechanisms of karst rocky desertification, and there has been the lack of perfect prevention and cure techniques. Therefore, the total extending trend of rocky desertification has not been controlled yet effectively. This paper discusses the existing problems of present basic researches on the processes of karst rocky desertification and adaptive recovery of karst ecosystems, including the temporal-spatial changes and driving mechanisms of karst rocky desertification, the soil erosion processes and its driving forces as well as risk evaluation in karst mountainous regions, the relationship of biogeochemical processes in karst rocky desertification with degradation processes of karst ecosystems, adaptive recovery of the degraded karst ecosystems, the optimization of service function and comprehensive adjusting and controlling measures of karst ecosystem, etc. It is emphasized that karst rocky desertification is not induced only by natural processes that happen in the geographical zones, and is the comprehensive ecological problems concerning the naturally, socially and economically driving factors. Muhidisciplinary integration and comprehensive research methods based on karst science should be adopted in the researches on karst rocky desertification. The development trends on the above research fields have also been predicted also in the last decades.
出处
《地球科学进展》
CAS
CSCD
北大核心
2007年第6期573-582,共10页
Advances in Earth Science
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生态系统调控"(编号:2006CB403200)
中国科学院知识创新工程重要方向项目"岩溶山地土壤与植被关联退化过程及其调控对策研究"(编号:KZCX2-YW-306)
领域前沿项目"碳酸盐岩风化成土作用及其生态环境效应"(编号:IG-04-01)
中国科学院"科技支黔工程"项目"喀斯特石漠化生态综合治理技术与生态示范区建设"联合资助
关键词
喀斯特石漠化
生态过程
生物地球化学过程
综合调控
存在问题
发展趋势
Karst rocky desertification
Ecological processes
Biogeochemical processes
Comprehensive adjusting and controlling measures
Research problems
Development trends.
作者简介
王世杰（1966-），男，浙江台州人，研究员，博士，主要从事喀斯特环境和环境地球化学研究．E-mail：wangshijie@vip．skleg．cn
