沈丘县农业气候资源及变化特点  

Agro-climatic Resources and Its Change Characteristics in Shenqiu

作　　者：马荣[1] 

机构地区：[1]沈丘县气象局,河南沈丘466300

出　　处：《气象与环境科学》2009年第B09期115-118,共4页Meteorological and Environmental Sciences

摘　　要：利用沈丘县1961-2000年气象观测资料,分析了沈丘县近40 a的气温、降水、日照时数的变化特点。结果表明:沈丘县的农业气候资源丰富,雨热同季,但又不完全同步;10℃以上的活动积温为4750.4℃.d,降水量为808.5 mm,主要分布在4-10月份,日照时数为2109.1 h;近40 a热量资源呈增多趋势,20世纪90年代的热量资源明显多于前30 a,降水量变化不明显,日照时数呈递减趋势。Based on the meteorological observational data in Shenqiu from 1951 to 2000, the change characteristics of temperature, precipitation, sunlight hours in the last 40 years were analyzed. The results indicate that agro -climatic resources in Shenqiu are abundant, rain and thermal resources concentrate over the same period and they have an incompletely synchrony; the active accumulated temperature （≥ 10 ℃） is 4750.4 ℃·~ d, the precipitation is 808.5 mm, which mainly distribute during April to October, the sunlight hours are 2109.1 h; the thermal resources are increasing in the recent 40 years, thermal resources are increasing obviously than before since the 1990s, precipitation changes are not obvious, sunlight hours have a decreasing trend.

关 键 词：热量 水分 光照 变化特征 

分 类 号：S162.3[农业科学—农业气象学]