干旱区生态环境知识资源中心(Arid): 泾河中上游流域土地利用格局变化与驱动因子分析

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	泾河中上游流域土地利用格局变化与驱动因子分析
其他题名	Land-Use/Cover Change Process and Driving Force Analysis in Jinghe River Channels
	张希彪
来源期刊	水土保持学报
ISSN	1009-2242
出版年	2005
卷号	19 期号:6 页码:137-140,152
中文摘要	利用RS和GIS技术和景观生态学的方法,对泾河中上游流域1986～2000年的景观特征及其动态变化进行了研究.通过计算多样性指数、优势度、破碎化指数、分离度等指标,进行了土地利用格局变化分析,并对该区域土地利用变化的主导因子进行了分析,认为该区土地利用/土地覆被变化的驱动力主要为:自然因素、经济因素、人口压力及宏观政策等, 并互相影响、互相制约, 共同影响流域景观格局的变化.
英文摘要	The eco-environment is sensitive and fragile in Jinghe river channels,which is closely influenced by the special natural environment of the area. The society and economy greatly developed in the last decade of the 20th century. However, the heavy activities of human beings aggravated the burden of the eco-environment, which can be characterized by the land deterioration, soil erosion and the increase frequency of natural hazards (debris flow and landslide) etc This paper focused on the LUCC, and explained the quantities, inner structure,types and spatial distribution features of the dynamic changes in Longdong loess plateau in fifteen years. Furthermore, the driving forces of the LUCC were analyzed in detail. The conclusions were; All the land-use types were decreased more or less except construction land and grassland. The cultivated land area was decreased by 20 691 hmz, which changed mainly into construction land and had the high quality with the plain location. The woodland area was decreased , which changed mainly into grassland, arid land and construction land, and the area of the forest land was decreased by 12 269 hm2. The construction land area was increased by 9 278. 8 hmz in fifteen years j the area of the grassland was increased, which came mainly from the conversion of the woodland and the arid land. The driving force of the LUCC in Longdong loess plateau were the economic development, the pressure of the increase of population, adjustment of the macro policy and the construction of the three gorges project.
中文关键词	景观格局 ; 驱动力 ; 泾河中上游流域
英文关键词	GIS LUCC GIS driving force Jinghe river channels
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:2130786
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/206659
作者单位	陇东学院,生命科学系, 庆阳, 甘肃 745000, 中国
推荐引用方式 GB/T 7714	张希彪. 泾河中上游流域土地利用格局变化与驱动因子分析[J],2005,19(6):137-140,152.
APA	张希彪.(2005).泾河中上游流域土地利用格局变化与驱动因子分析.水土保持学报,19(6),137-140,152.
MLA	张希彪."泾河中上游流域土地利用格局变化与驱动因子分析".水土保持学报 19.6(2005):137-140,152.

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