福建林学院学报2013，Vol.33Issue(3)：273-278,6.
杉木人工林凋落量及气候因子敏感性分析
Litterfall production and its relationship with climatic factors in a Cunninghamia lanceolata (Lamb.) Hook.plantation
摘要
Abstract
In order to investigate the relationships between litteffall (production,composition and dynamics) and climatic factors,a 7-year-long field experiment was conducted in a Cunninghamia lanceolata (Lamb.) Hook.plantation in Shaxian,Fujian Province.Results showed that the ranges of litterfall production from 2005 to 2011 were from 1051.83-2407.80 kg·hm-2,with the mean value of 1 493.14 kg·hm-2·y-1.Litterfall production reduced significantly from 2005 to 2006,while in the next 6 years,litteffall production increased followed by decreasing,and increased again finally,but its change scope was smooth.The litterfall proportions of leaves,branches,fruits,barks,rags were 62.9％ 、16.6％、7.63％、3.16％ and 9.73％,respectively.The monthly dynamics of litteffall production showed a type of two peaks,which appeared in February (maximum) and July,accounting for 62.3％ of the total annual production.The relationships between litterfall production and meteorological factors were examined by using Pearson and Spearman methods.The results showed that precipitation and wind speed were the most sensitive factors in C.lanceolata plantations (P ＜ 0.05),followed by the temperature and sunshine hours.关键词
杉木林/凋落量/动态变化/气候因素Key words
Cunninghamia lanceolata (Lamb.) Hook./ litterfall production/ dynamics/ climatic factors分类
农业科技引用本文复制引用
房焕英,刘文飞,吴建平,樊后保,欧阳勋志,袁颖红..杉木人工林凋落量及气候因子敏感性分析[J].福建林学院学报,2013,33(3):273-278,6.基金项目
国家自然科学基金资助项目(31060109,31200406,31160159) （31060109,31200406,31160159）
江西省教育厅科技落地计划项目(KJLD12097). （KJLD12097）
