濒危竹种小蓬竹群落不同小生境的小气候变化特征  

Microclimate Characteristics of Different Microhabitats of a Rare and Endangered Bamboo of Drepanostachyum luodianense Communities

作　　者：王敏[1] 刘济明[1] 徐雪娇[1] 闫国华[1] 赵小鹏[1] 文萍[1] 

机构地区：[1]贵州大学林学院,贵州贵阳550025

出　　处：《贵州农业科学》2013年第6期78-82,共5页Guizhou Agricultural Sciences

基　　金：贵州省国际科技合作计划项目"濒危植物小蓬竹生态适应性及育苗技术研究"[黔科合外G字(2009)700101];贵州大学引进人才科研项目"濒危植物小蓬竹个体生态特征及其小生境特点研究"

摘　　要：为弄清小蓬竹群落不同小生境的小气候变化特征,采用野外实地调查测定方法,研究分析了小蓬竹群落不同小生境的小气候变化特征。结果表明:石面小生境光照强度最大,高温持续时间长,湿度较低并且土壤很薄或没有,基本没有小蓬竹分布;石洞小生境气温和土壤温度相对较低,不同坡位光强差异大,小蓬竹分布很少,长势最差;而土面小生境气温、光照、相对湿度和土温都较为适宜稳定,适合小蓬竹生长。The microclimate characteristics in different microhabitats of different D.luodianense communities were studied by field investigation.The results showed that stone surface light intensity was the highest of all,its high air temperature lasted for a long time,its relative air humidity was low,and there was little soil on it,so that D.luodianense didn’t distribute in stone surface;the air temperature and soil temperature of stone cavern were lower than others,light intensity was largly different among different slope position,D.luodianense was sparse in stone cavern and growing weakest;the light intensity,air temperature,relative air humidity and soil temperature of soil surface were most suitable and stable,it was the best for D.luodianense.

关 键 词：小蓬竹 小生境 小气候 

分 类 号：S718.5[农业科学—林学]