干旱区生态环境知识资源中心(Arid): 近50年来松嫩平原西部土地利用变化及驱动力分析

Arid

	近50年来松嫩平原西部土地利用变化及驱动力分析
其他题名	Dynamic Change of Land-use Patterns in West Part of Songnen Plain
	刘殿伟; 宋开山; 王丹丹; 张树清
ISSN	1000-0690
出版年	2006
卷号	26 期号:3 页码:277-283
中文摘要	在遥感和地理信息系统技术支持下，对松嫩平原西部土地利用方式、景观格局的动态变化进行定量研究。结果表明：过去近50年里，松嫩平原西部耕地净增加29．6510^4hm^2，其中草地与湿地对耕地的增加贡献最大；草地减少70．2910^4hm^2，除部分草地转化为耕地外，退化为盐碱地、沙地也是草地大量减少的一个重要原因；松嫩平原西部现有沼泽湿地面积44．88*10^4hm^2，近50年来减少62．54％。景观破碎化严重，不同土地利用类型间频繁转化，表明各种土地景观间存在不稳定因素，自然和人为因子在景观的转化中有不可忽略的作用，但人为因子的作用更显著。
英文摘要	Songnen Plain is one of the commercial grain bases of China, which belongs to ecological fragile regions. Based on remote sensing and GIS technologies, the dynamic changes of land-use patterns in western Songnen Plain were analyzed quantitatively. The results show that great change has occurred in spatial pattern of land-use in the past 50 years. The area of cultivated land increased 29.65 10^4 ha, which mainly converted from grassland and wetland. And 70.29 10^4 ha of grassland lost in the past 50 years, except for conversion to cultivated land, desertification, salinization and grassland degradation can also account for grassland losing. Wetlands have decreased 62.45% since 1954. The study also indicated that the fragmentation of grassland, forestland, wetland and unused land were severe. The maximal patch area and maximal patch perimeter were all decreased. The conversion ratio of different land-use types were severe in the west part of Songnen Plain, which indicated that different land-use types were unstable, anthropogenic and natural factors both play important roles in this process, while human actives affect the process more severely.
中文关键词	土地利用变化 ; 景观指数 ; 遥感 ; 松嫩平原西部
英文关键词	land-use change landscape indices Songnen Plain
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:2450431
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/219496
作者单位	中国科学院东北地理与农业生态研究所, 长春, 吉林 130012, 中国
推荐引用方式 GB/T 7714	刘殿伟,宋开山,王丹丹,等. 近50年来松嫩平原西部土地利用变化及驱动力分析[J],2006,26(3):277-283.
APA	刘殿伟,宋开山,王丹丹,&张树清.(2006).近50年来松嫩平原西部土地利用变化及驱动力分析.,26(3),277-283.
MLA	刘殿伟,et al."近50年来松嫩平原西部土地利用变化及驱动力分析".26.3(2006):277-283.