干旱区生态环境知识资源中心(Arid): 关于喀斯特石漠和石漠化概念的讨论

Arid

	关于喀斯特石漠和石漠化概念的讨论
其他题名	Discuss on Concepts of Rock Desertification and Rock Desert in Karst Region
	李阳兵; 王世杰; 容丽
来源期刊	中国沙漠
ISSN	1000-694X
出版年	2004
卷号	24 期号:6 页码:689-695
中文摘要	喀斯特石漠化是近年来所认识到的一种地质生态灾害,所造成的经济、环境乃至社会影响越来越大,受到国家的广泛关注,但却存在生态建设超前、基础研究落后的严峻现实.本文总结了当前石漠化的类型划分和存在问题,从喀斯特生态系统运行的地学过程、生物学过程和人为过程出发,提出石漠化过程存在地质石漠化过程、生态系统石漠化过程和人为加速石漠化过程,对不同类型的石漠化宜分别采取保护、恢复、重建、维持措施.石漠和石漠化表达的时空范畴不同,是石漠化这一土地退化过程的最后或顶极结果,自然条件下其形成多与地表坡度较大有关,而人为加速石漠化过程中石漠化土地空间分布与地形坡度、地貌部位并无直接联系.建议以"干扰方式+植被+土壤+地貌"对人为加速石漠化过程导致的石漠化土地进行类型划分,评价的土地应分为非石漠化土地、石漠化土地和逆转优化的"基准化"土地.
英文摘要	Karst rock desertification has been recently regarded as a kind of geological-ecological disaster re-sulting in more and more intense economic, environmental and social effect, but basic researches on it lagged ecological construction. This paper summarizes current classification and problems of karst rock de-sertification. Different rock desertification types should adopt conservation, restoration, reallocation and preservation respectively based on analyses to the running processes of karst ecosystem including geological, biological and artificial processes. The karst rock desertification processes exist geological rock desertifica-tion, ecosystem rock desertification and artificially accelerating rock desertification. Rock desert is the last or the climax result of rock desertification-processes, and different from rock de-sertification in space-time category. The formation of rock desert has much matter with the large slope gra-dient under natural conditions, but the distribution of artificially accelerating rock desertification has no di-rect relation with topography and geomorphologic position. It is suggested that the rock desertified lands re-sulting from artificially accelerating rock desertification should be classified into no-rock desertification land, rock desertification land and reversed "benchmark" land based on regionalization indicators "disturbed mode + vegetation + soil + geomorphology".
中文关键词	石漠 ; 石漠化 ; 人为加速作用
英文关键词	rock desertification rock desert artificially accelerating processes
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOSCIENCES MULTIDISCIPLINARY
WOS研究方向	Geology
CSCD记录号	CSCD:1697513
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/205778
作者单位	中国科学院,地球化学研究所, 环境地球化学国家重点实验室, 贵阳, 贵州 550002, 中国
推荐引用方式 GB/T 7714	李阳兵,王世杰,容丽. 关于喀斯特石漠和石漠化概念的讨论[J],2004,24(6):689-695.
APA	李阳兵,王世杰,&容丽.(2004).关于喀斯特石漠和石漠化概念的讨论.中国沙漠,24(6),689-695.
MLA	李阳兵,et al."关于喀斯特石漠和石漠化概念的讨论".中国沙漠 24.6(2004):689-695.