气候变化领域集成服务门户(CCPortal): 中国半个世纪以来夏季降水量变化总趋势

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	中国半个世纪以来夏季降水量变化总趋势
其他题名	Precipitation trend analysis in China in the last half century
	卢爱刚; 庞德谦; 康世昌; 王天明; 熊友才; 葛剑平
发表日期	2008
ISSN	1672-2175
卷号	17 期号:1 页码:169-172
中文摘要	全球气候变化已经影响到人类生存环境的方方面面。全球升温及其幅度的区域差异，必然引起降水在区域分布的变化。文章利用160站点的夏季降水资料，分别计算出各个站点1951-2002年的变化斜率，以展示我国各地在这半个世纪中的降水总趋势变化的区域差异。通过分析发现，降水量总的变化趋势存在着随纬度而变化的规律：31°N以北区域近半个世纪降水量总的变化趋势是减少，31°N以南地区降水量以增加为主。40°N以北地区的降水变化幅度相对要小得多。区域上．中国西北和东南存在一个降水增多的趋势。中国降水的区域变化，在季风区受季风强弱变化影响；在非季风区，受西风强弱变化影响。
英文摘要	The unprecedented global warming is causing many environmental problems. Due to the differences of warming extents in various regions, precipitation is bound to be affected by the asynchronous warming. The trend of summer precipitation variation series of 160 stations are analyzed to find general trend of precipitation change under global warming in 1951-2002. Results showed that there is a significant regional precipitation variation difference. By analysis, we found out that the precipitation has a latitudinal effect, that the precipitation generally kept a decline trend in the area north to 31°N, but a increase trend to the south of 31°N. the precipitation in the area north of 40°N is more stable in variation than in the lower areas. Regionally, the precipitation in Northwest China and Southeast China kept obvious increasing trends. The precipitation variation in the summer monsoon influenced areas is controlled by the variety of the summer monsoon and that in the non-summer-monsoon influenced area results from the variation of the westerly.
关键词	夏季降水趋势变化区域差异原因
英文关键词	summer precipitation;trend variation;regional difference;mechanism
语种	中文
来源期刊	生态环境
来源机构	中国科学院西北资源环境生态研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/89701
推荐引用方式 GB/T 7714	卢爱刚,庞德谦,康世昌,等. 中国半个世纪以来夏季降水量变化总趋势[J]. 中国科学院西北资源环境生态研究院,2008,17(1):169-172.
APA	卢爱刚,庞德谦,康世昌,王天明,熊友才,&葛剑平.(2008).中国半个世纪以来夏季降水量变化总趋势.生态环境,17(1),169-172.
MLA	卢爱刚,et al."中国半个世纪以来夏季降水量变化总趋势".生态环境 17.1(2008):169-172.