干旱区生态环境知识资源中心(Arid): 基于土地利用变化模型的退耕还林还草决策分析 --以通辽地区为例

Arid

	基于土地利用变化模型的退耕还林还草决策分析 --以通辽地区为例
其他题名	The Use of Land Use Change Models to Support the Conversion of Unsustainable Dry Land into Forest Land or Grassland - A Case Study in Tongliao Region
	张永民; 赵士洞; 周成虎
来源期刊	自然资源学报
ISSN	1000-3037
出版年	2005
卷号	20 期号:3 页码:461-470
中文摘要	通过综合考虑影响退耕还林还草的自然和社会因素,结合土地利用规划和遥感影像解译结果,论文以通辽地区为例,介绍了利用土地利用变化模型确定退耕还林还草区域的方法和过程.根据对2010年模型模拟结果和2000年通辽地区土地利用现状的对比分析,结果发现2000～2010年该地区进行退耕还林还草的合适区域应该主要位于研究地区的中部、南部,以及北中部.研究地区中部属于科尔沁沙地的腹地,土地沙漠化最为严重,同时城镇和农村居民点分布较密,退耕还林还草是政府用于减缓风沙对城镇和农村居民点危害程度的重要生态措施;而南部和北中部属于丘陵和山区,由于过度开垦,水土流失较为严重,是实施退耕还林还草的重点区域.此外,与退耕还林区相比,退耕还草区距城镇、农村居民点以及道路相对较远,具有可达性较差、地理位置较为偏僻的特点.论文得出的结果可为今后通辽地区退耕还林还草工程的实施提供科学依据,同时,该文提出的确定退耕还林还草区域的方法对其它地区具有一定的借鉴意义.
英文摘要	During the past decades, the rapid expansion of desertification has become one of the most serious environmental problems in northern China.Northern China is a region sensitive to environmental change due to its transitional location and the high potential for sandy deserti-fication.To mitigate the deteriorating eco-environmental conditions,the conversion of unsuitable dry land to forest land or grassland has been proposed as one of the major ecological programs by the Chinese government.To help the implementation of this program a new method that helps to identify suitable dry land for converting into forest land and grassland is presented in this paper taking Tongliao region as a case.The regional land use change model,CLUE-S,is used based on system theory to allow the integrated analysis of land use change in relation to socio-economic and biophysical driving factors.Land use change was simulated for Tongliao region from 2000 to 2010.Then,suitable locations converting dry land into forest land and grassland were identified by overlapping the simulated land use change map of 2010 with a map showing the distribution of dry land in 2000,which was extracted from the land use map of 2000. According to the result of the two overlapped maps,suitable locations for land conversion are mainly found in the central,the southern,and the central-northern parts of the study area.The central part of the study area,with relatively high population density,is situated in the inland of Horqin Desert where desertification has always been very serious during the past decades.In order to mitigate the degradation of living environment,much unproductive dry land will be reforested or converted to grassland in this sub-region.The southern and the central-northern parts of the study area are more hilly and mountainous where soil erosion is very serious due to excessive reclamation.So.much dry land will also be chosen as the priority area for land conversion into forest land and grassland in these two sub-regions.This paper illustrated that CLUE-S model is a useful tool for implementing land management decisions,and that the results of this study can provide valuable information for the conversion of unsustainable dry land into forest land or grassland in the study area.
中文关键词	土地利用变化模型 ; 退耕还林还草 ; 通辽
英文关键词	land use change model conversion of unsuitable dry land to forestland or grassland Tongliao region
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURAL ECONOMICS POLICY ; AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:1991033
来源机构	中国科学院地理科学与资源研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/207126
作者单位	中国科学院,地理科学与资源研究所, 北京 100101, 中国
推荐引用方式 GB/T 7714	张永民,赵士洞,周成虎. 基于土地利用变化模型的退耕还林还草决策分析 --以通辽地区为例[J]. 中国科学院地理科学与资源研究所,2005,20(3):461-470.
APA	张永民,赵士洞,&周成虎.(2005).基于土地利用变化模型的退耕还林还草决策分析 --以通辽地区为例.自然资源学报,20(3),461-470.
MLA	张永民,et al."基于土地利用变化模型的退耕还林还草决策分析 --以通辽地区为例".自然资源学报 20.3(2005):461-470.