安徽查湾甜槠林不同大小林隙光因子对比分析  

Comparative Analysis on the Contrast Light Factor of Different Size Gaps of Castanopsis eyrei Forest in Zhawan of Anhui Province

作　　者：江国华 汪秀琴 吴泽民[2] 

机构地区：[1]宣城职业技术学院建筑艺术系,安徽宣城242000 [2]安徽农业大学林学与园林学院,安徽合肥230036

出　　处：《长江大学学报（自然科学版）》2017年第6期18-23,共6页Journal of Yangtze University(Natural Science Edition)

基　　金：国家"十一五"科技支撑项目(2006BAD03A06);安徽省高校自然科学重点研究项目(KJ2014A244);安徽省高校自然科学重点研究项目(KJ2016A785)

摘　　要：以安徽查湾自然保护区甜槠(Castanopsis eyrei)林为研究对象,分析不同大小林隙光因子变化情况。结果表明:不同大小林隙及非林隙林分内光照强度日变化呈单峰型,光照的峰值出现在11:00~13:00。在整个生长季中,光照和气温均表现为:大林隙>中林隙>小林隙>非林隙。不同大小林隙内光照由林隙中心区向林下逐渐递减,于近心区处减幅最大。Castanopsis eyrei stand in Zhawan Natural Reserve of Anhui Province was selected as research object.The light intensity changes of different size gaps was analyzed.The results showed that the daily change of light intensity in gaps of different size and non-gap stands revealed a single peak.The peak of the light intensity was at 11:00 to 13:00.Throughout the growing period,the light intensity for different gaps was that big gap>middle gap>small gap>non-gap.Gradient change of light in gaps of different sizes was observed as it declined gradually from the gap center to understory,and it had the highest reduction range near the center.

关 键 词：甜槠(Castanopsis eyrei) 林隙 光照 安徽查湾 

分 类 号：S718.45[农业科学—林学]