杉木人工林径向生长对气候因子的响应

摘要

We studied the impact of climate change on the Cunningham ia lanceolata with mainafforestation tree species in the south by analyzing relationship between tree-ring width of C.lanceolata in Fujian Jiangle Forest Centre and climatic fac-tors.The growth of C.lanceolata is significantly and negatively correlated with monthly mean temperature in previous spring (previous April) and winner (November), but significantly and positively correlated with monthly mean tempera-ture in August and monthly precipitation in current July and November.The growth of C.lanceolata is controlled by differ-ential climate during various periods.There is some relevance between dominated factors in various growthstages of C. lanceolata.%以福建将乐杉木为研究对象，通过建立树轮宽度与气候要素的相关关系，探讨气候变化对南方主要造林树种杉木的影响。本研究就杉木的径向生长与逐月的气候进行相关分析。结果表明：从逐月的气候因素和生长的相关性来看，杉木主要受到上年春季（上年4月）和冬季（11月）气温的抑制作用，同时受秋季（10月）气温、当年夏季（当年7月）和冬季（11月）降水的促进作用，杉木人工林对温度和降水的响应存在差异，各个阶段的杉木生长主导因素存在一定的关联性。