干旱区生态环境知识资源中心(Arid): 三峡地区土地利用/土地覆被变化及其驱动力分析

Arid

	三峡地区土地利用/土地覆被变化及其驱动力分析
其他题名	Land-Use/Cover Change Process and Driving Force Analysis in Three Gorges Area
	江晓波; 马泽忠; 曾文蓉; 周万村; 周爱霞; 李爱农; 孙育秋
来源期刊	水土保持学报
ISSN	1009-2242
出版年	2004
卷号	18 期号:4 页码:108-112
中文摘要	三峡地区是生态环境的脆弱地区,这与其特殊的自然地理环境息息相关.从土地利用/土地覆被的角度出发,利用RS和GIS技术,阐明了20世纪最后10年库区土地利用/土地覆被变化在数量、结构、类型和空间分布上的特点,并进一步分析了库区土地利用/土地覆被变化的驱动力,得出以下结论:(1)10年间除建设用地和草地面积增加外,其他土地利用类型都呈现出不同程度衰减;(2)建设用地以高速增长,增幅达21 528.09 hm2;(3)耕地减少的幅度较大,达18 399.29 hm2,主要转变为建设用地;且减少的耕地多为位置相对优越,产量较高的优质良田;(4)林地面积总趋势是减少,主要转变为草地、旱地和建设用地,其中有林地减少的幅度较大,达7 411.93 hm2;(5)草地的面积总体增加,主要源自于林地和旱地的变化;(6)库区土地利用/土地覆被的空间格局分为3个主导因子变化区域:耕地-城镇型、林灌-耕地型和复合型;(7)库区土地利用/土地覆被变化的驱动力主要为:经济因素、人口压力、宏观政策及三峡工程4个方面,这4个方面不是孤立的,而是互相影响、互相制约的,共同影响库区的土地利用/土地覆被类型.
英文摘要	The eco-environment is sensitive and fragile in Three Gorges Area (TGA), 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 TGA in ten years. Furthermore, the driving forces of the LUCC were analyzed in detail. The conclusions were s (1) all the land-use types were decreased more or less except cultivated land and grassland; (2) the construction land area was increased by 21 528. 09 hm2 in ten yearsj.(3) the cultivated land area was decreased by 18 399. 29 hm2, which changed mainly into construction land and had the high quality with the plain location; (4) 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 7 411. 93 hm2; (5) the area of the grassland was increased, which came mainly from the conversion of the woodland and the arid land; (6) the spatial distribution pattern can be divided into three-types-cultivated land to cities and rural resi-dence, Woodland to cultivated land and complex type; (7) the driving force of the LUCC in TGA were the eco-nomic development, the pressure of the increase of population, adjustment of the macro policy and the construc-tion of the three gorges project.
中文关键词	三峡地区 ; 土地利用/土地覆被 ; 驱动力
英文关键词	RS GIS Three Gorges Reservoir Area (TGA) LUCC RS GIS driving force
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:1606233
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/205482
作者单位	中国科学院成都山地灾害与环境研究所, 成都, 四川 610041, 中国
推荐引用方式 GB/T 7714	江晓波,马泽忠,曾文蓉,等. 三峡地区土地利用/土地覆被变化及其驱动力分析[J],2004,18(4):108-112.
APA	江晓波.,马泽忠.,曾文蓉.,周万村.,周爱霞.,...&孙育秋.(2004).三峡地区土地利用/土地覆被变化及其驱动力分析.水土保持学报,18(4),108-112.
MLA	江晓波,et al."三峡地区土地利用/土地覆被变化及其驱动力分析".水土保持学报 18.4(2004):108-112.