不同坡位米老排人工林生长量与生物量的研究  

The Study of the Growth and Biomass of MytiLaria laosensis Plantation in Different Slope Positions

作　　者：明安刚[1] 陶怡[1] 吴光枝[1] 赵樟[1] 孙冬婧[1] 苏勇 吴燕萍[1] 臧海珊[1] 

机构地区：[1]中国林业科学研究院热带林业实验中心,广西凭祥532600 [2]南宁良凤江国家森林公园,南宁530031

出　　处：《中国农学通报》2011年第28期90-93,共4页Chinese Agricultural Science Bulletin

基　　金：广西林业科技项目"广西主要人工林生态功能"(09-12-2);中国林业科学研究院热带林业实验中心主任基金项目"桂西南3种珍贵乡土树种人工林碳储量与碳密度研究"(RL2011-02)

摘　　要：为了阐明坡位对米老排人工林生长量及生物量的影响,采用相对生长法分3个坡位对广西大青山28年生米老排人工林生长量及生物量进行研究。结果表明:坡位对米老排人工林胸径和树高生长量影响显著,且呈现出下坡位>中坡位>上坡位的规律;人工林群落及各组分生物量和乔木各器官生物量均受坡位的影响,且差异显著,下坡位生物量最高,中坡位居次,上坡位最低。Divided into 3 slope positions,the growth and biomass of 28-old-year MytiLaria laosensis plantation in Daqingshan Mountain of Guangxi were studied by the relative growth method to clarify the affection of slope position on the growth and biomass of MytiLaria laosensis plantation.The results showed that slope position could significantly influence the DBH and height growth,and the average DBH and average tree height were reflected as downslopemidslopeupslope;the biomass of plantation community and it ＇ s components as well as the biomass of the organs of the tree layer were influenced significantly by the slope position.The biomass in the downslope was the highest,flowed by the midslope,upslope was the lowest.

关 键 词：坡位 米老排人工林 生长量 生物量 

分 类 号：S719[农业科学—林学]