中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
基于RS和GIS的三峡库区林地变化及气候响应研究

文献类型:期刊论文

作者张宝雷 ; 周万村 ; 周启刚 ; 冯朝阳
刊名北京林业大学学报
出版日期2006
卷号28期号:4页码:62-66
关键词自动获取 图像分割 林地变化 气候响应 三峡库区
其他题名Forestland changes and climate response in the Three Gorges ReseCvoir Area based on RS and GIS
通讯作者张宝雷
合作状况其它
中文摘要为了研究三峡库区近50年的林地变化及气候响应,该文以TM、SPOT、MSS影像和地形图等多种信息源为基础,通过一种新的自动提取方法获取了2002年三峡库区的各类型林地资源现状分布,并通过人工修改达到了精度要求.通过人工解译找动态图斑的方法获取了近50年三峡库区其他各期(2000、1995、1986、1973和1953年)的林地资源分布图,并对近50年三峡库区各种林地的变化过程作了分析.以全国1915个站点的气象数据为基础,通过插值获取三峡库区的气候要素资料,并对三峡库区林地变化的气候响应做了阐述.结果表明:三峡库区的各种林地在近50年经历了剧烈减少-缓慢减少-较大减少-不断恢复的发展过程.三峡库区的年均气温对林地变化的响应不明显,而年降水量与林地面积变化呈正相关,但是年降水量的变化相对于林地面积的变化在时间上具有滞后性和某个时段上的反常性.
英文摘要In oMer to make a detailed analysis of forestland changes and their climate responses during the last 50
years,the authors obtained information for the year 2002 of the distribution of forestland by the application of
a new auto-extraction method with relatively high precision.The authors took TM ,SPOT and MSS images as
well as topographic maps,assisted by manual revision, as our fundamental inform ation sources.And the
forestland distribution maps of previous periods(years of 2000,1995,1986,1973 and 1953)were also
obtained by the manual interpretation method,which was carried out in the way of searching for dynamic
spots.Meanwhile,analysis was made on the process of the dynamic changes of forestland during the last 50
years.Moreover,on the basis of data collected from 1 9 1 5 stations throughout China,the meteorological data
in the Three Gorges Reservoir Area were obtained by the interpolation method and also the climate responses to
the changes of forestlan d were analyzed.Resuhs show that each kind of forestland area in the Three Gorges
Reservoir Area has experienced a process of sharp reduction—‘mild reduction—‘relatively great reduction—‘slow
restoration during the last 50 years . I e response of the annual average temperature to the forestland changes is
not significant. However, the changes of annual average rainfall are closely related with those of the
forestlands,although its changes lag behind the forestland changes and have abnorm ality in certain period.
Key words auto-extraction,segmentation of images,forestland changes, climate response,the Three
Gorges Reservoir Area
分类号S718.5
资助信息中国科学院知识创新工程项目(KZCX2SW31901);国务院三峡办课题(SX[2002]00401)
语种中文
公开日期2010-08-27
源URL[http://ir.imde.ac.cn/handle/131551/1659]  
专题成都山地灾害与环境研究所_成都山地所知识仓储(2009年以前)
推荐引用方式
GB/T 7714
张宝雷,周万村,周启刚,等. 基于RS和GIS的三峡库区林地变化及气候响应研究[J]. 北京林业大学学报,2006,28(4):62-66.
APA 张宝雷,周万村,周启刚,&冯朝阳.(2006).基于RS和GIS的三峡库区林地变化及气候响应研究.北京林业大学学报,28(4),62-66.
MLA 张宝雷,et al."基于RS和GIS的三峡库区林地变化及气候响应研究".北京林业大学学报 28.4(2006):62-66.

入库方式: OAI收割

来源:成都山地灾害与环境研究所

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