安徽农业科学2009，Vol.37Issue(22)：10407-10409,3.
2009年初江苏省干旱过程对小麦产量的影响分析
Analysis on the Impact of Drought Process in Early 2009 on Wheat Yield in Jiangsu Province
项瑛 1商兆堂 2陈钰文 1张旭辉 3宗鹏程1
作者信息
- 1. 江苏省气候中心,江苏南京,210008
- 2. 江苏省气象局,江苏南京,210008
- 3. 江苏省气象台,江苏南京,210008
- 折叠
摘要
Abstract
[Objective] The study aimed to analyze the possible impact caused by drough process on wheat yield. [Method] The annual precipitation trend and field evapotranspiration in similar drought years of all the stations in Jiangsu Province were analyzed through calculating climate tendency rates and potential evapotranspiration amounts. [Result] From Nov. 1st, 2008 to Feb. 7th, 2009, the precipitation was least in Xuzhou, Lianyungang, Suqian and Huaian and the precipitation amounts of some stations in Xuzhou City were less than 20 mm. From 1961 to 2008, the precipitation amount in the northeast of Jiangsu Province was reduced gradually and that in the southwest was increased a little. The annual precipitation tendency rates of most stations in Huaibei district were negative and that in Pizhou and Yancheng were most significant. The 5 drought processes with serious disaster situation in Jiangsu Province in history occurred in the periods from Oct. 1973 to Jan. 1974, from Mar. 1978 to Jun. 1979, from Dec. 1983 to Apr. 1984, from Dec. 1987 to early Jul. 1988 and from Oct. 1995 to Mar. 1996 resp. From Nov. 2008 to the early of middle Feb. 2009, the monthly evapotranspiration amount of Huaibei district in Jiangsu Province was little. [Conclusion] It was predicted that the drought process in early 2009 had qiute little negative impact on wheat yield.关键词
干旱/影响/小麦产量Key words
Drought/Impact/Wheat yield分类
农业科技引用本文复制引用
项瑛,商兆堂,陈钰文,张旭辉,宗鹏程..2009年初江苏省干旱过程对小麦产量的影响分析[J].安徽农业科学,2009,37(22):10407-10409,3.
