不同坡位下罗甸小米核桃枝构件研究  

Branch module of Juglans regia L.f.luodianense Liu et Xu in different slope positions

作　　者：张东凯[1] 刘济明[1] 徐国瑞[1] 廖小锋[1] 闫国华[1] 王敏[1] 

机构地区：[1]贵州大学林学院,贵州贵阳550025

出　　处：《浙江农业学报》2011年第6期1227-1231,共5页Acta Agriculturae Zhejiangensis

基　　金：贵州省林业厅重大课题"喀斯特地区特色经济林树种培育与示范"黔林科合[2010]重大04号

摘　　要：为了探索不同坡位下罗甸小米核桃枝构件特征,运用Harper构件理论对处于中坡位、坡下位以及无坡位的罗甸小米核桃枝构件情况进行了调查分析。结果表明:(1)坡下位罗甸小米核桃分枝数较大,生长较旺盛;(2)罗甸小米核桃空间拓展能力大小为无坡位>中坡位>坡下位,光照和二氧化碳的利用潜力某种程度上取决于一级枝的分枝长度;(3)罗甸小米核桃分枝能力大小为无坡位>中坡位>坡下位,枝条分枝能力大小为三级枝>二级枝>一级枝;(4)一级枝与二级枝之间水分和养分的运输状况对罗甸小米核桃的生长发育影响最大。In order to explore the branch module features of Juglans regia L.f.luodianense Liu et Xu in different slope positions,the branch module situation of J.regia L.f.luodianense in middle slope position,down slope position and non-slope position was investigated and analyzed by method of Harper＇s plant module theory.The results showed that：（1） J.regia L.f.luodianense had more branches and better growth in down slope position;（2）The order of spatial expanding capacity of J.regia L.f.luodianense showed as non-slope position middle slope positiondown slope position.The use level of light and carbon dioxide of J.regia L.f.luodianense somewhat depended on the length of its first class branches;（3）The order of branching capability of J.regia L.f.luodianense showed as non-slope position middle slope positiondown slope position,and the branching capability of its branches showed as the third class branchesthe second class branchesthe first class branches;（4）The transportation of moisture and nutrient between the first class branches and the second class branches had the greatest effect on growth and development of J.regia L.f.luodianense.

关 键 词：罗甸小米核桃 坡位 枝构件 喀斯特 

分 类 号：S718.3[农业科学—林学] Q948.1[生物学—植物学]