鄱阳湖区近40年来双季稻生长期间的气温变化趋势  

Changing Trend of Air Temperature during the Growth Period of Double Cropping Rice in Poyang Lake Region in the Recent 40 Years

作　　者：魏金连[1] 潘晓华[1] 

机构地区：[1]农业部双季稻生理生态与栽培重点开放实验室/作物生理生态与遗传育种教育部重点实验室江西农业大学,江西南昌330045

出　　处：《安徽农业科学》2009年第27期12995-12997,13017,共4页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金项目资助(30860138)

摘　　要：[目的]分析鄱阳湖区水稻生长期间的气温变化趋势。[方法]根据鄱阳湖区18个气象站1965～2005年的气温资料，分析了该地区双季稻生长期间的气温变化趋势。[结果]历年月均日最高气温与年份极显著相关，其相关方程和相关系数分别为：y=0．02x一15．697和0．2515。41年内，试验水稻生长期间的平均日最高气温上升了0．82℃，4、6和10月份的平均日最高气温分别上升了2．36、1．01和1．53℃。历年月均日最低气温与年份极显著相关，其相关方程和相关系数分别为：y=0．0207x一20．334和0．32685。41年内．试验水稻生长期间的平均日最低气温上升了0．85℃，4、6、9和10月份的平均日最低气温分别上升了1．89、0．92、1．44和1．14℃。[结论j近40年来，鄱阳湖区水稻生长期间的平均日最高气温和平均日最低气温都呈显著的上升趋势。[ Objective ] The researched aimed to analyze the changing trend of air temperature during the growth period of rice in Poyang lake region. [ Method] Based on the air temperature data from 18 meteorological stations of Poyang lake region in 1965 -2005, the changing trend of air temperature during the growth period of double cropping rice in this region was analyzed. [ Result] The monthly mean daily highest temperatures of past years extremely significantly correlated with the years and their correlation equation and correlation coefficient were y = 0.02x -15. 697 and 0.251 5 resp. In the 41 years, the mean daily highest temperature during the growth period of tested rice was increased for 0. 82 ℃ and the mean daily highest temperature of Apr. , Jun. and Oct. were increased for 2.36, 1.01 and 1.53℃ resp. The monthly mean daily lowest temperatures of past years extremely significantly correlated with the years and their correlation equation and correlation coefficient were y = 0. 020 7x - 20. 334 and 0.326 85 resp. In the 41 years, the mean daily lowest temperature during the growth period of tested rice was increased for 0.85 ℃ and the mean daily lowest temperature of Apr. , Jun. , Sep. and Oct. were increased for 1.89, 0.92, 1.44 and 1.14 ℃ resp. [ Conclusion] In the last 40 years, both the mean daily highest and lowest temperatures during the growth period of rice in Poyang lake region showed significant increasing trend. Key words Poyang lake region; Change of air temperature; Double cropping rice

关 键 词：鄱阳湖区 气温变化 双季稻 

分 类 号：S511[农业科学—作物学]