干旱区生态环境知识资源中心(Arid): 森林·蒸散·气候·沙漠--试论中国森林变迁对沙漠演替的影响

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	森林·蒸散·气候·沙漠--试论中国森林变迁对沙漠演替的影响
其他题名	Forest, Evapotranspiration, Climate and Desert:Effects on Desertification since the Change of Forests in China
	樊宝敏; 李智勇
来源期刊	林业科学
ISSN	1001-7488
出版年	2005
卷号	41 期号:2 页码:154-159
中文摘要	以森林历史、生态学、气候学、沙漠学研究成果为基础,综合研究森林、蒸散、气候、沙漠之间的关系.结果表明:森林、蒸散、气候、沙漠四者之间有着紧密的内在关系.因人为活动造成的中国森林的大面积减少,首先引起陆相蒸散量的降低,进而使中国北部气候逐渐趋于干旱化,最终表现为沙漠的扩张.4 000年间,我国森林覆盖率由60%减至12.5%,作为主要原因使全国总年蒸散量减少146mm,全国平均降水量减少约200 mm,沙漠化面积由占国土的10%扩大到17.6%.森林与沙漠是构成陆地生态系统的两极,是此消彼长的关系,连通两者联系的中介是水.中国从根本上防治沙漠化的途径是在"东南半壁"宜林地区大面积培育以提高蒸散为目的的"云根林".
英文摘要	Based on the achievements of forest history, ecology, climatology and desertology, the relationships of forest, evapotranspiration, climate and desert were studied. The results showed that: the four things have close interrelations. The decrease of Chinese forests in large area owing to the activity of the mankind leads to the reduction of land evapotranspiration first. It makes the climate in North China getting to dry gradually then. As an end result, desert enlarges rapidly. In the past 4 000 years, forest coverage decreased from 60% to 12.5%. It as a main reason caused great reductions of both the total evapotranspiration for 146 mm·a~(-1) and the mean annual precipitation for 200 mm, as well as enlargement of desert percentage taking territory from 10% to 17.6%. Forest and desert compose the two poles of land ecosystem. Their relations are one decrease at the same time another increase. The medium is water that links the two poles. The essential method to prevent and control the desertification in North China is to breed forests, named ’ Cloud Origin Forests’ , in the southeast half part of China fitting for forests.
中文关键词	森林变迁 ; 蒸散 ; 降水 ; 沙漠化 ; 云根林
英文关键词	change of forest evapotranspiration precipitation desertification Cloud Origin Forests
语种	中文
国家	中国
收录类别	CSCD
WOS类目	FORESTRY
WOS研究方向	Forestry
CSCD记录号	CSCD:1924632
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/206422
作者单位	中国林业科学研究院林业科技信息研究所, 北京 100091, 中国
推荐引用方式 GB/T 7714	樊宝敏,李智勇. 森林·蒸散·气候·沙漠--试论中国森林变迁对沙漠演替的影响[J],2005,41(2):154-159.
APA	樊宝敏,&李智勇.(2005).森林·蒸散·气候·沙漠--试论中国森林变迁对沙漠演替的影响.林业科学,41(2),154-159.
MLA	樊宝敏,et al."森林·蒸散·气候·沙漠--试论中国森林变迁对沙漠演替的影响".林业科学 41.2(2005):154-159.