干旱区生态环境知识资源中心(Arid): 额济纳三角洲近15年土地利用分形特征及变化

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	额济纳三角洲近15年土地利用分形特征及变化
其他题名	Fractal character and change of land use in Ejina Delta during the past 15 years
	王大鹏; 王周龙; 李德一; 崔青春
ISSN	1000-6060
出版年	2007
卷号	30 期号:5 页码:742-746
中文摘要	分形理论在土地利用变化领域有着广阔的应用前景.通过论述土地利用斑块分维数、稳定性指数的计算方法及代表意义.而后,借助遥感和地理信息系统空间技术,以额济纳三角洲为例,计算了沙漠化地区土地利用斑块的分维数和稳定性指数,分析了它们的变化特征及其所隐含的地理学意义,为区域生态环境保护和可持续利用提供决策依据.
英文摘要	Fractal theory is a new tool for LUCC study and it has a broad prospect for application in this field.In this article,the calculation method and representative signification of patch fractal dimension and stability index have been expatiated.With the support of RS and GIS spatial technology,taking Ejina delta as example,the patch fractal dimension and stability index of land use are calculated in desertification region.The variation character and its potential geographical meaning have also been analyzed.The results show that(1) great changes of land use have taken place in Ejina Delta from 1987 to 2001,especially evident change of water domain makes Ejina Delta region facing serious ecology pressure;(2)ecotone between oasis and desert is usually the most sensitive and unstable region,so more protection and management should be actualized at ecotone between oasis and desert in the process of desertification prevention and land use planning;(3) because of decrease of water replenishment and increase of exploitation and utilization underwater,more and more desertification shrubs translates into desertification pasture and the eco-environment in Ejina Delta region would be deteriorated further;(4)with the sharpening of desertification,small area oasis will be lost in Gobi and sandlot and the area of difficult use land increases more and more,which means the restoration would be very difficult.Some piece
中文关键词	分形理论 ; 分维 ; 沙漠化地区 ; 土地利用变化
英文关键词	fractal theory fractal dimension desertification region land use change
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:2945419
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/220944
作者单位	鲁东大学地理与规划学院, 烟台, 山东 264025, 中国
推荐引用方式 GB/T 7714	王大鹏,王周龙,李德一,等. 额济纳三角洲近15年土地利用分形特征及变化[J],2007,30(5):742-746.
APA	王大鹏,王周龙,李德一,&崔青春.(2007).额济纳三角洲近15年土地利用分形特征及变化.,30(5),742-746.
MLA	王大鹏,et al."额济纳三角洲近15年土地利用分形特征及变化".30.5(2007):742-746.