干旱区生态环境知识资源中心(Arid): 基于GIS 的岩溶区土地利用的地形梯度分布研究以酉阳县板溪乡为例

Arid

	基于GIS 的岩溶区土地利用的地形梯度分布研究以酉阳县板溪乡为例
其他题名	Distribution of land use pattern at different terrain gradients in karst area based on GIS:A case in Benxi village,Youyang county
	刘玲; 王勇; 谢世友; 龙宓; 彭安琪; 韩耀炜
来源期刊	中国岩溶
ISSN	1001-4810
出版年	2013
卷号	32 期号:4 页码:462-471
中文摘要	基于RS 和GIS 技术,采用地形位指数、分布指数和土地利用程度综合指数,探讨了2002、2011两年重庆市酉阳县板溪乡不同地形梯度土地利用结构的变化特征和定量分析了土地利用程度。结果显示:建设用地、耕地和水域对地形条件的选择性较强;建设用地主要聚集在海拔<850 m、坡度<15°的区域,耕地主要聚集在海拔<1 050 m 和坡度<25°的区域,5和7级地形位为制约水域分布的地形条件;2011年,灌木林地在海拔650~1 250 m、坡度>15°的区域集中增加。总体上,该研究区的土地利用程度较高,但仍然存在耕地分布不合理的现象。
英文摘要	Studying land use change and its spatial expansion along the terrain gradient is of great significance for identifying the direction of land use change and its sustainable use.In this paper,a case study is conducted in Banxi village,Youyang county,Chongqing City.The regional differentiation in natural conditions is quite obvious,the topographic relief is relatively great,and comprehensive and multiple karst landforms are quite developed in the area.The major aims is to study the characteristics of land use pattern in the region and provide reference for adjusting land use structure and ecologic reconstruction in similar karst areas.The land use data in 2002 and 2011 in Banxi village are obtained by means of RS and GIS techniques,on the basic data of the topographic map(2002),land use status map (2002),SPOTS-5 remote sensing satellite images (2011).According to the above study and terrain index,distribution index and comprehensive land use degree index,changes of land use pattern in 2002 and 2011 in Banxi village of Youyang county is studied and the land use degree at that terrain gradient of the studying area is quantitatively analyzed in this paper.The results show that,(1)the building land and cultivated land are obvious predominant at low terrain niche;the interval of the preponderant terrain niche obviously increased in woodland,and the woodland changes into uniform distribution from clumped distribution;(2)The preponderant terrain niches of the building land,cultivated land and water area as well as unused land generally remained stable during the study period.According to the quantitative expression of land use degree at terrain gradient,terrain niche interval is divided into three sections,i.e.1-22,23-47,48-50,mainly representing the building land and cultivated land level, the forest land level,the barren land level,which occupies 54.23 %,40.43 % and 5.34 % of the total study area respectively.Overall,the expansion forest land enables rocky desertification at high terrain to be controlled to some extent.In order to realize reforestation and ecological environment improvement quickly, dominant tree species at scrublands should be fostered and economic forest trees should be inter-planted in still preserved slope cropland focuses in 2011.
中文关键词	岩溶区 ; 土地利用类型 ; 地形位指数 ; 分布指数 ; 土地利用程度综合指数 ; 板溪乡
英文关键词	GIS GIS karst area land use type terrain index distribution index land use degree composite index Banxi village
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURAL ECONOMICS POLICY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5048780
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/230723
作者单位	西南大学地理科学学院, 重庆 400715, 中国
推荐引用方式 GB/T 7714	刘玲,王勇,谢世友,等. 基于GIS 的岩溶区土地利用的地形梯度分布研究以酉阳县板溪乡为例[J],2013,32(4):462-471.
APA	刘玲,王勇,谢世友,龙宓,彭安琪,&韩耀炜.(2013).基于GIS 的岩溶区土地利用的地形梯度分布研究以酉阳县板溪乡为例.中国岩溶,32(4),462-471.
MLA	刘玲,et al."基于GIS 的岩溶区土地利用的地形梯度分布研究以酉阳县板溪乡为例".中国岩溶 32.4(2013):462-471.