中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
近60年关中-天水经济区降水量特征分析

文献类型:期刊论文

作者何毅 ; 王飞 ; 穆兴民 ; 张文帅 ; 焦俏 ; 李锐
刊名水土保持研究
出版日期2012
卷号19期号:01页码:65-69
关键词气候变化 limate change 降水 precipitation 降水日数 precipitation days 时空变化 temporal and spatial variation 关中—天水经济区 Guanzhong—
其他题名Analysis on Characteristic of Precipitation in Guanzhong-Tianshui
中文摘要降水等气候要素变化将会影响农业生产。采用传统统计、空间插值和距平累积分析等方法,对关中—天水经济区及其周边26个代表性气象站点1951—2009年59a系列的降水实测资料进行了分析。结果表明:(1)降水量从西北向东南递增,不同的降雨强度在各年代分布不均,并且降水日数与降水量变化不完全一致。(2)1950s—1970s降水量减少,1980s后降水量增加,进入1990s后,降水量又开始减少,2000年后降水量略有增加。(3)降水量变化特征大致可分为3个阶段。大部分站点年降水量1968年或1975年以前高于多年平均降水量,1968—1990年或1975—1990年期间,年降水量围绕多年平均降水量震荡,1990年后,降水量普遍低于多年平均值。
英文摘要Abstract:Climate factors including precipitation have significant effects on agricultural production.Traditional
 statistics,spatial interpolation and accumulated variance analysis methods are applied to analyze the change
characteristics of precipitation in Guanzhong—Tianshui economic zone,based on the precipitation data of 26
weather stations in and around this region during 1951—2009.Results showed that:(1)Annual average
rainfall increased gradually from northwest to southeast.The rainfall intensity distribution in this region is
not even during decadal,and the changes of rainy days and precipitation are inconsistent;(2)The precipitation
 decreased from 1950sto 1970s,increased in 1980s,then began to decrease in 1990s,precipitation went up
slightly after 2000;(3)The variation of precipitation could be divided into 3stages.The precipitation of
most of weather stations before 1968or 1975was more than the mean for many years,the precipitation between
 1968and 1990or during 1975to 1990fluctuated at the mean for many years,and then precipitation
was less than the mean for many years after 1990.
语种中文
公开日期2014-08-27
源URL[http://ir.iswc.ac.cn/handle/361005/5433]  
专题水土保持研究所_水保所知识产出(1956-2013)
推荐引用方式
GB/T 7714
何毅,王飞,穆兴民,等. 近60年关中-天水经济区降水量特征分析[J]. 水土保持研究,2012,19(01):65-69.
APA 何毅,王飞,穆兴民,张文帅,焦俏,&李锐.(2012).近60年关中-天水经济区降水量特征分析.水土保持研究,19(01),65-69.
MLA 何毅,et al."近60年关中-天水经济区降水量特征分析".水土保持研究 19.01(2012):65-69.

入库方式: OAI收割

来源:水土保持研究所

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