摘要
利用黔西南州近50年气象资料对降水量的时空分布特征进行了分析。结果表明,黔西南5~10月（雨季）降水量占年降水量的82%~85%,而头年11月到次年4月（旱季）的降水量只占15%~18%,有长达6个月的少雨干旱期,即季节性缺水期;旱季降水量有减少、旱灾有加重的趋势。并分析了工程性缺水的现状,提出了有关的对策建议。
The meteorological data in recent 50 years in Southwest Guizhou were used to analyze the temporal-spatial distribution characteristics of precipitation.The results indicated that the precipitation（rainy season） during May–October accounted for 82%-85% of annual precipitation,however,the precipitation from November of last year to April of the next year（dry season） only accounted for 15%-18%,there was rainless dry periods for 6 months,namely seasonal water shortages;the precipitation of dry season showed decreasing trend and drought showed increasing trend.Finally,the present situation of engineering shortages was analyzed and some suggestions and countermeasures were put forward.
出处
《安徽农业科学》
CAS
北大核心
2011年第4期2045-2047,2066,共4页
Journal of Anhui Agricultural Sciences
关键词
黔西南
季节性缺水
气候特征
Southwest Guizhou
Seasonal water shortage
Climatic characteristics
