近40年中国东部木本植物秋季叶全变色期变化  

Change of Autumnal Leaf Coloring of Woody Plants in Eastern China for the Last 40 Years

作　　者：仲舒颖[1] 郑景云[1] 葛全胜[1] 

机构地区：[1]中国科学院地理科学与资源研究所,北京100101

出　　处：《中国农业气象》2010年第1期1-4,共4页Chinese Journal of Agrometeorology

基　　金：中国科学院知识创新工程重要方向项目(KZCX2-YW-315);国家科技支撑计划课题(2007BAC03A11);国家自然科学基金项目(4077101740625002)

摘　　要：根据中国物候观测网络17个站点的物候资料和气象资料,分析了近40a中国东部地区木本植物秋季叶全变色期变化及其对气候变化的响应。结果表明:近40a,中国东部地区木本植物秋季叶全变色期变化总体表现为推迟的趋势,推迟的幅度为3.7d.(10a)-1;从年代上看,20世纪80年代后木本植物叶全变色期的推迟趋势明显;最低气温每升高或降低1℃,植物叶全变色期平均推迟或提前约3d;气候增暖可能是导致植物叶变色期推迟的主要原因之一。结果对丰富物候与全球气候变化关系研究具有重要意义。Based on plant phenological data from 17 stations of the Chinese Phenologieal Observation Network of In- stitute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences and the meteorological data, the change of autumnal leaf coloring of woody plants in Eastern China for the last 40 years was analyzed. The results showed that in Eastern China, the timing of leaf coloring change of the woody plants showed an average dela- ying rate of 3.7 day per 10 years,and this delaying trend was remarkable after 1980s,and a rise or drop of 1℃ in mean minimum temperature could lead to a delay or an advance of 3 days in leaf coloring. Climate warming was probably the main reason for the delaying trend in autumn phenophase of woody plants in Eastern China during the study period. The results of this study will have great significance for the study of relation between phenology and global climate change.

关 键 词：中国东部 木本植物 秋季叶全变色期 物候变化 气候变化 

分 类 号：Q948[生物学—植物学]