干旱区生态环境知识资源中心(Arid): 1975年以来黑河中游地区土地利用/覆被变化时空演变

Arid

	1975年以来黑河中游地区土地利用/覆被变化时空演变
其他题名	Spatial-Temporal Evolution of Land Use/Cover Change in Middle Section of Heihe Basin Since 1975
	姜朋辉; 赵锐锋; 赵海莉; 樊洁平; 汪建珍; 刘超
来源期刊	生态与农村环境学报
ISSN	1673-4831
出版年	2012
卷号	28 期号:5 页码:473-479
中文摘要	以西北干旱区重要的内陆河黑河中游地区为研究区域,采用1975、1987、1992、2001和2010年遥感影像为基础数据,选取土地利用变化幅度、动态度和土地利用强度指数3个指标,并结合转移矩阵,采用相关性分析和主成分分析方法,对该地区近35 a来的土地利用/覆被变化及其驱动力进行综合分析。结果表明,19752010年,研究区耕地和城乡居民工矿用地所占比例持续上升,分别由14.14%和1.52%增加到19.74%和1.98%;草地和水域面积则分别减少3.8710~4和0.4110~4hm~2。各土地利用类型中以耕地的土地利用变化强度指数最高,达0.160 4%,草地次之。研究区土地利用类型间主要转移方向为:草地转化为耕地和未利用地,未利用地转化为耕地和草地,林地与草地间相互转化。导致黑河中游地区土地利用发生上述变化的主要驱动力为社会经济因素。
英文摘要	The Heihe River is one of the most important inland rivers in the northwest arid region of China.With its economy and population growing rapidly,the Heihe basin is faced with deteriorating ecological environment in recent years.Therefore,it is very important and urgent to analyze changes in land use/cover in the area,and their driving forces,and eco-environment problems.The middle section of Heihe basin was chosen as a research area,of which the remote-sensing images of 1975,1987,1992,2001 and 2010 were picked as basic data for comprehensive analysis using correlation analysis method and principal component analysis method in combination with transfer matrix.Variation amplitude,dynamic degree and intensity of land use were set as indices.Results show that within 35 years after 1975,the proportions of cultivated land and land for urban and rural housing and public facilities and for industrial and mining expanded steadily by 5.60 and 0.46 percentage points,respectively,and the area of grassland and water surface decreased by 3.8710~4 and 0.4110~4 hm2,respectively.Among the various types of land use in the study,cultivated land was the highest in variation amplitude,reaching 0.160 4% and was followed by grassland.The conversions of grassland into farmland and wasteland,and the conversion of wasteland into farmland and grassland and the conversion of forestland into grassland and vice versa were the main trends of the landuse variation.The major force driving the variation of the land use is development of the social economy.
中文关键词	土地利用/覆被 ; 时空演变 ; 遥感 ; 黑河中游
英文关键词	land use /cover spatial-temporal evolution remote sensing middle section of Heihe basin
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:4668219
来源机构	西北师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/228518
作者单位	西北师范大学地理与环境科学学院, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	姜朋辉,赵锐锋,赵海莉,等. 1975年以来黑河中游地区土地利用/覆被变化时空演变[J]. 西北师范大学,2012,28(5):473-479.
APA	姜朋辉,赵锐锋,赵海莉,樊洁平,汪建珍,&刘超.(2012).1975年以来黑河中游地区土地利用/覆被变化时空演变.生态与农村环境学报,28(5),473-479.
MLA	姜朋辉,et al."1975年以来黑河中游地区土地利用/覆被变化时空演变".生态与农村环境学报 28.5(2012):473-479.