干旱区生态环境知识资源中心(Arid): 金沙江干热河谷土地荒漠化评价方法研究

Arid

	金沙江干热河谷土地荒漠化评价方法研究
其他题名	Evaluation Method of Land Degradation/Desertification
	范建容; 刘淑珍; 钟祥浩; 李勇
来源期刊	地理科学
ISSN	1000-0690
出版年	2002
卷号	22 期号:2 页码:243-248
中文摘要	什么样的退化土地才是荒漠化土地，土地荒漠化的发生发展以及程度和区划等问题的定量确定，至今有关报道甚少。干热河谷是我国西南地区特殊的生态民环境类型，自然资源丰富，但土地荒漠化问题十分突出，这一现象的定量认识尤为重要。针对土地景观生态系统的复杂性和模糊性，在建立评价指标体系的基础上，采用模糊综合评判的方法，对土地荒漠化程度进行定量评价，为荒漠化土地的预防和治理提供科学依据和决策支持。
英文摘要	Arid-hot valleys are special ecological type in southwest China. Land degradation/desertification is very severe in the arid-hot valley of the Jinshajiang River, the upstream of the Yangtze River, and threatens residents living and sustainable development of national economy. The study on land desertification presently include type, distribute, cause of formation, harm, process and principle of forming. Land desertification degrees are still determined qualitatively. In order to take some countermeasures, rapid and accurate evaluation to the land desertification in this region should be done. The degrees of land degradation/desertification are determined by element analysis and multiplayer fuzzy evaluation in accordance with the complexity and fuzziness of land ecological system. The study shows those as following: Physiognomy, soil and vegetation is important factors for evaluation to land desertification in the arid-hot valley of the Jinshajiang River. According to the evaluation criteria system land desertification degrees are determined quantitatively with fuzzy evaluation. The evaluation result is accurate and reliable. It can tell us not only the degree of land degradation/desertification, but also its developing tendency and provide scientific basis and support of policy decision for the prevention of Land degradation/desertification and bringing it under control.
中文关键词	干热河谷 ; 荒漠化 ; 评价方法 ; 模糊综合评判
英文关键词	Arid-hot valley land desertification evaluation method fuzzy evaluation
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:966130
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/203061
作者单位	中国科学院、水利部成都山地灾害与环境研究所, 成都, 四川 610041, 中国
推荐引用方式 GB/T 7714	范建容,刘淑珍,钟祥浩,等. 金沙江干热河谷土地荒漠化评价方法研究[J],2002,22(2):243-248.
APA	范建容,刘淑珍,钟祥浩,&李勇.(2002).金沙江干热河谷土地荒漠化评价方法研究.地理科学,22(2),243-248.
MLA	范建容,et al."金沙江干热河谷土地荒漠化评价方法研究".地理科学 22.2(2002):243-248.