干旱区生态环境知识资源中心(Arid): 峰丛洼地石漠化景观演化与土地利用模式

Arid

	峰丛洼地石漠化景观演化与土地利用模式
其他题名	An exploratory analysis of both landscape pattern and land use model in peak cluster-depressions rocky desertification areas
	但文红 1; 张聪 2; 宋江 2; 王丽 2
ISSN	1000-0585
出版年	2009
卷号	28 期号:6 页码:1615-1624
中文摘要	峰丛洼地石漠化景观格局是土壤分布空间格局的制约下,岩溶生态系统对植被强烈依附性条下,由不同类型人类活动决定的.农耕、放牧和砍伐是最主要的破坏峰丛植被的人类活动;缓坡耕地形成轻度石漠化景观;陡坡地形成中度石漠化景观,因坡面土壤流失,演化为更高等级石漠化景观;峰丛陡坡放牧和砍伐都可能直接形成峰丛上部大面积中-强度石漠化景观,出现峰丛坡面石漠化景观分异,产生不同的土地利用模式.
英文摘要	Under the condition of dependence of karst ecosystems on vegetation, different types of human activities can induce rocky desertification peak cluster-depressions land-scape pattern due to the fact that these activities are constrained by the spatial structure of the soil distribution. The soil distribution of peak cluster-depression is affected by natural conditions such as lithological character, geologic structure, slope, soil loss and so on, thus the special phenomenon of soil dual structure forms: discontinuous and inadequate surface soil, adequate soil stack underground. Because there is insufficient soil at the sur-face, water conservation mainly depends on vegetation and forest withered leaves at sur-face in the karst ecosystem, and the plant itself also becomes an important factor for soil forming, so, the biology effect is remarkable during karst process, and the ecosystem strongly relies on vegetation. In peak cluster-depression areas, the primary activity is tra-ditional agriculture which supplies the basic food and energy: cultivating land for farming, felling trees for building materials and energy, cleaning up brush and wasteland for grazing and so on. So farming, grazing and deforesting are the most important human activities that affect the peak cluster vegetation. Human activities can result in mild rocky desertifi-cation landscape on gentle-slope cultivated land, moderate rocky desertification landscape along with the soil erosion on slopes, and evolved higher level rocky desertification on steep slopes. Grazing and deforesting on steep slopes of peak cluster can directly cause a large area of moderate-high strength rock desertification landscape on the upper part of the peak cluster, furthermore the rocky desertification landscape differentiation emerges on steep slopes and peak cluster, and presents different land use patterns.
中文关键词	峰丛洼地 ; 石漠化 ; 土地利用 ; 景观格局
英文关键词	peak cluster-depressions rocky desertification land use landscape pattern
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:3734076
来源机构	中国科学院地理科学与资源研究所 ; 贵州师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/223386
作者单位	1.中国科学院地理科学与资源研究所, 北京 100101, 中国; 2.贵州师范大学地理与环境科学学院, 贵阳, 贵州 550001, 中国
推荐引用方式 GB/T 7714	但文红,张聪,宋江,等. 峰丛洼地石漠化景观演化与土地利用模式[J]. 中国科学院地理科学与资源研究所, 贵州师范大学,2009,28(6):1615-1624.
APA	但文红,张聪,宋江,&王丽.(2009).峰丛洼地石漠化景观演化与土地利用模式.,28(6),1615-1624.
MLA	但文红,et al."峰丛洼地石漠化景观演化与土地利用模式".28.6(2009):1615-1624.