干旱区生态环境知识资源中心(Arid): 黑河上游土地利用动态变化及影响因素的定量分析

Arid

	黑河上游土地利用动态变化及影响因素的定量分析
其他题名	Quantitative Analysis of Dynamic Change of Land Use and Its Influencing Factors in Upper Reaches of the Heihe River
	安美玲; 张勃; 孙力炜; 张调风; 杨波; 王东; 张春玲
来源期刊	冰川冻土
ISSN	1000-0240
出版年	2013
卷号	35 期号:2 页码:355-363
中文摘要	由于特殊的自然地理属性和人类活动方式,西北干旱区黑河上游的土地利用方式有别于中下游地区,土地利用格局演变过程对全流域水资源和生态环境的影响巨大.以黑河上游为研究对象,以1987年,1999年和2010年的遥感影像为基础数据,运用转移矩阵法和主成分分析等方法定量分析了林地、草地、耕地3种主要土地利用类型的动态变化过程,揭示了其变化的动力机制.结果表明:1)黑河上游土地利用变化阶段明显,林地、草地和耕地3种土地利用类型在1987-1999年和1999-2010年两个阶段转化显著,林地持续减少,草地先减少后增加,耕地持续增加;2)单一土地类型分布格局差异大,林地呈东多西少,北多南少的分布格局;草地呈东多西少,南多北少格局;耕地集中分布于河谷和城镇居民点周围及山前地带;3)人为因素是影响黑河上游土地利用动态变化的关键因素.
英文摘要	Because of the particular natural characteristics and human activities,the way of land use in the upper reaches of the Heihe River,located in arid region of Northwest China,is different from that in the middle and lower reaches of the river. The variation processes of the land use structure in the upper reaches have an important affect on water resources and eco-environment of the whole watershed. In this paper,the upper reaches are taken as research object.Three sets of Landsat Satellite images over the study area in 1987,1999 and 2010 were selected to be basic data.Transfer matrix and principal component analysis were employed to analyze quantitatively the process of dynamic change of the woodland,grassland and cultivated land in the study area.Then the dynamic mechanism of the land use in the area was revealed.The following conclusion can be drawn:1)The land use change has evident periodicity:in the stage of 1987-1999 cultivated land increasing with woodland and grassland decreasing,but in the stage of 1999-2010 grassland increasing and woodland decreasing with cultivated land increasing;2)The spatial pattern of a land use type has great difference: woodland is in east more than in west,and in north more than in south;grassland is in east more than in west and in south more than in north,but cultivated land mainly concentrates along the river valleys and around the urban settlements even near the piedmonts;3)Human activity is the key influencing factor to the dynamic change in land use.
中文关键词	土地利用 ; 黑河上游 ; 动态变化 ; 影响因素
英文关键词	land use upper reaches of the Heihe River dynamic change influencing factor
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:4836205
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/2XILL650/229224
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	安美玲,张勃,孙力炜,等. 黑河上游土地利用动态变化及影响因素的定量分析[J]. 西北师范大学,2013,35(2):355-363.
APA	安美玲.,张勃.,孙力炜.,张调风.,杨波.,...&张春玲.(2013).黑河上游土地利用动态变化及影响因素的定量分析.冰川冻土,35(2),355-363.
MLA	安美玲,et al."黑河上游土地利用动态变化及影响因素的定量分析".冰川冻土 35.2(2013):355-363.