干旱区生态环境知识资源中心(Arid): 西南喀斯特典型生态系统土壤特征与植被适应性恢复研究

Arid

	西南喀斯特典型生态系统土壤特征与植被适应性恢复研究
其他题名	Ecological Process and Vegetation Restoration in Karst Region of southwest China
	王克林; 苏以荣; 曾馥平; 陈洪松; 肖润林
ISSN	1000-0275
出版年	2008
卷号	29 期号:6 页码:641-645
中文摘要	西南喀斯特区域是特殊地质背景制约的脆弱生态带。论文以西南喀斯特地区典型生态系统不同退化／恢复阶段物质循环与植被恢复响应为主线，研究生态系统中的水分和养分过程，包括坡面降雨-入渗-产流-土壤水分再分布过程、土壤水分养分空间分异特征、微生物种群结构及其主要影响因素，初步揭示了地下过程为主、地表过程为辅的水土物质迁移规律与峰丛坡地土壤水分养分状况高于洼地的趋势；通过不同演替阶段、石漠化程度植被生态系统监测，初步揭示植被生态适应性与植物多样性的时空格局，提出发展草食畜牧业、构建农牧复合生态系统的替代型喀斯特区域生态重建发展模式。
英文摘要	Karst topography and carbonate rock related landscapes are considered very important yet fragile geomorphic features. In particular, ecosystems in karst regions are extremely sensitive to anthropogenic disturbances. For karst topographic features of southwest China this is especially true given the presence of highly developed tower karst, long history of human exploitation, and current high human population density. It is commonly agreed that the frequent human activities in this karst region have altered the water, and carbon budgets. Among the various consequences of human disturbance, rock desertification, the processes where areas formerly covered with vegetation and soil are converted to rocky / barren lands, is a very common process. The speed of rock desertification reach a high point during the 1980s resulting in the deterioration of the karst ecosystem and, subsequently, worsening local poverty levels. In this paper, the key issues of land use and ecological processes are discussed. Soil moisture plays an important role in plant growth and vegetation rehabilitation,and has a high temp-spatial heterogeneity. The characteristics of spatial distribution of soil moisture are largely dependent on land use types, topographic position, soil texture and others . different land use types may result in diferent patterns on nutrient loss and runof, dunes. The responses of soil improvement to vegetation restoration were also analysed. The innovative approach for improvement in both the restoration of degraded ecosystem s and regional sustainable development were discussed.
中文关键词	广西 ; 喀斯特 ; 生态系统 ; 生态过程
英文关键词	Guangxi Karst ecosystem ecological process
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:3453758
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/222624
作者单位	中国科学院亚热带农业生态研究所, 长沙, 湖南 410125, 中国
推荐引用方式 GB/T 7714	王克林,苏以荣,曾馥平,等. 西南喀斯特典型生态系统土壤特征与植被适应性恢复研究[J],2008,29(6):641-645.
APA	王克林,苏以荣,曾馥平,陈洪松,&肖润林.(2008).西南喀斯特典型生态系统土壤特征与植被适应性恢复研究.,29(6),641-645.
MLA	王克林,et al."西南喀斯特典型生态系统土壤特征与植被适应性恢复研究".29.6(2008):641-645.