干旱区生态环境知识资源中心(Arid): The effect of environmental factors on spatial variability in land use change in the high-sediment region of Chinas Loess Plateau

Arid

	The effect of environmental factors on spatial variability in land use change in the high-sediment region of Chinas Loess Plateau
	Luo Ya; Yang Shengtian; Zhao Changsen; Liu Xiaoyan; Liu Changming; Wu Linna; Zhao Haigen; Zhang Yichi
来源期刊	Journal of Geographical Sciences
ISSN	1009-637X
出版年	2014
卷号	24 期号:5 页码:802-814
英文摘要	In areas with topographic heterogeneity, land use change is spatially variable and influenced by climate, soil properties, and topography. To better understand this variability in the high-sediment region of the Loess Plateau in which soil loss is most severe and sediment diameter is larger than in other regions of the plateau, this study builds some indicators to identify the characteristics of land use change and then analyze the spatial variability as it is affected by climate, soil property, and topography. We build two indicators, a land use change intensity index and a vegetation change index, to characterize the intensity of land use change, and the degree of vegetation restoration, respectively. Based on a subsection mean method, the two indicators are then used to assess the spatial variability of land use change affected by climatic, edaphic, and topographic elements. The results indicate that: 1)Land use changed significantly in the period 1998-2010. The total area experiencing land use change was 42,302 km~2, accounting for 22.57%of the study area. High-coverage grassland, other woodland, and forest increased significantly, while low-coverage grassland and farmland decreased in 2010 compared with 1998. 2)Land use change occurred primarily west of the Yellow River, between 35 and 38 degrees north latitude. The four transformation types, including (a)low-coverage grassland to medium-coverage grassland, (b)medium-coverage grassland to high-coverage grassland, (c)farmland to other woodland, and (d)farmland to medium-coverage grassland, were the primary types of land use change, together constituting 60% of the area experiencing land use change. 3)The spatial variability of land use change was significantly affected by properties of dryness/wetness, soil conditions and slope gradient. In general, land use changed dramatically in semi-arid regions, remained relatively stable in arid regions, changed significantly in clay-rich soil, remained relatively stable in clay-poor soil, changed dramatically in steeper slopes, and remained relatively stable in tablelands and low-lying regions. The increase in vegetation coincided with increasing changes in land use for each physical element. These findings allow for an evaluation of the effect of the Grain to Green Program, and are applicable to the design of soil and water conservation projects on the Loess Plateau of China.
英文关键词	spatial variability land use change dryness/wetness soil properties slope gradient the high-sediment region of Chinas Loess Plateau
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	Science & Technology - Other Topics
CSCD记录号	CSCD:5187937
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335379
作者单位	Luo Ya, School of Geography, Beijing Normal University, State Key Laboratory of Remote Sensing Science;;Beijing Key Laboratory for Remote Sensing of Environment and Digital Cities, Beijing 100875, China.; Yang Shengtian, School of Geography, Beijing Normal University, State Key Laboratory of Remote Sensing Science;;Beijing Key Laboratory for Remote Sensing of Environment and Digital Cities, Beijing 100875, China.; Zhao Changsen, School of Geography, Beijing Normal University, State Key Laboratory of Remote Sensing Science;;Beijing Key Laboratory for Remote Sensing of Environment and Digital Cities, Beijing 100875, China.; Wu Linna, School of Geography, Beijing Normal University, State Key Laboratory of Remote Sensing Science;;Beijing Key Laboratory for Remote Sensing of Environment and Digital Cities, Beijing 100875, China.; Zhao Haigen, School of Geography, Beijing Normal University, State Key Laboratory of Remote Sensing Science;;Beijing Key Laboratory for Remote Sensing of Environment and Digital Citie...
推荐引用方式 GB/T 7714	Luo Ya,Yang Shengtian,Zhao Changsen,et al. The effect of environmental factors on spatial variability in land use change in the high-sediment region of Chinas Loess Plateau[J],2014,24(5):802-814.
APA	Luo Ya.,Yang Shengtian.,Zhao Changsen.,Liu Xiaoyan.,Liu Changming.,...&Zhang Yichi.(2014).The effect of environmental factors on spatial variability in land use change in the high-sediment region of Chinas Loess Plateau.Journal of Geographical Sciences,24(5),802-814.
MLA	Luo Ya,et al."The effect of environmental factors on spatial variability in land use change in the high-sediment region of Chinas Loess Plateau".Journal of Geographical Sciences 24.5(2014):802-814.