干旱区生态环境知识资源中心(Arid): 我国北方干旱化研究

Arid

	我国北方干旱化研究－面向国家需求的全球变化科学问题
其他题名	Study of aridification in northern china-A global change issue facing directly the demand of nation
	符淙斌 1; 安芷生 2
来源期刊	地学前缘
ISSN	1005-2321
出版年	2002
卷号	9 期号:2 页码:271-275
中文摘要	近几十年来，全球环境变化已经成为国际社会关注的焦点。中国也面临一系列与此相关的重大生态环境问题。其中最为突出的是北方地区的干旱化。其主要表现为：降水量减少，雪线高度抬升，湖泊萎缩，河网干枯（特别如黄河断流），土地荒漠化，生态系统退化等等。这些问题已经成为国民经济发展的严重障碍。北方干旱化是怎样形成的？其未来发展趋势如何？将对中国的生存环境和社会经济可持续发展产生什么影响，应采取什么对策？政府和公众迫切要求回答这些与社会发展和人民生活密切相关的重大问题。文中分析了北方干旱化问题的性质，提出了面对国家需求应解决的关键科学问题和主要研究内容，简要介绍了在国家重点基础研究规划项目的支持下，近年来的主要研究进展，其中包括北方地区不同时间尺度干湿变化的规律和干旱化的证据，全球增暖和人类活动（主要是水土资源的利用）对干旱化的影响，主要生态系统对干旱化的响应和适应以及组织有序人类活动，改善生态环境，缓解干旱化影响的虚拟试验的结果等。
英文摘要	In recent several decades, the global environmental change has become a critical issue concerned by world society. China is also facing a series of environmental problems related to global change. Among them, the most serious one is the aridification in Northern China as shown by the reduction of precipitation, lifting of snow line, cutoff of river flow, shrinking of lake, desertification of the land and the degradation of ecosystems, etc. These problems have become the most serious obstacles for the development of national economy. What are the main causes of the aridification? What a role the human activities play in the aridification? What will be the trend of its future development? What are the impacts of aridification on the life-supporting environment and the sustainable development of social economy? These are the great concern of the government and people. This article first analyzed the nature of the aridification problem and then identified the key scientific issues and research topics in order to answer the questions put forward by the society. The major part of the text introduced briefly the recent progress in the study of Northern China aridification under the support of National Key Basic Research Program, including the rule of dry and wet oscillation and the new and more evidences of the aridification in Northern China, the potential impacts of global warming and human activities (mainly the land use and water resources) on the aridification, the response and adaptation of the major ecosystems to the arid climate and finally the results of virtual experiments to show how to organize the orderly human activities to improve the environmental conditions and to reduce the impacts of aridification.
中文关键词	干旱化 ; 全球变化 ; 中国北方
英文关键词	aridification global change Northern China
语种	中文
国家	中国
收录类别	CSCD
WOS类目	METEOROLOGY ATMOSPHERIC SCIENCES
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:968637
来源机构	中国科学院大气物理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/203112
作者单位	1.中国科学院大气物理研究所, 北京 100029, 中国; 2.中国科学院地球环境研究所, 西安, 陕西 710075, 中国
推荐引用方式 GB/T 7714	符淙斌,安芷生. 我国北方干旱化研究－面向国家需求的全球变化科学问题[J]. 中国科学院大气物理研究所,2002,9(2):271-275.
APA	符淙斌,&安芷生.(2002).我国北方干旱化研究－面向国家需求的全球变化科学问题.地学前缘,9(2),271-275.
MLA	符淙斌,et al."我国北方干旱化研究－面向国家需求的全球变化科学问题".地学前缘 9.2(2002):271-275.