充分供水下几种幼树的高生长动态分析  

Analysis on Annual Height Growth of Some Young Tree Species under Optimum Water Condition

作　　者：唐光金[1] 王进鑫[1] 靳林[2] 

机构地区：[1]西北农林科技大学资源环境学院,陕西杨陵712100 [2]陕西省林业工业产品质量监督检验站,陕西西安710082

出　　处：《西北林学院学报》2006年第1期54-56,共3页Journal of Northwest Forestry University

基　　金：国家自然科学基金资助项目(30371151);教育部留学回国人员科研启动基金资助项目

摘　　要：以黄土区的3种主要幼树油松、元宝枫和侧柏为研究对象,研究树木高的年生长规律。用Log istic方程对树木的高生长进行拟合,划分3种幼树的生长时期,为生长前期、速生期和生长后期。应用灰色关联度分析关键因子的方法,准确判断出关键气候因子对树高生长的影响程度,并显示出因子间的相对重要性。气候因子影响程度排序为相对湿度>空气温度>光照强度。The principal goal of this study was to analysize the height growth of three kinds of drought-resistance tree species,namelg Pinus tabulaeformis, Acer truncatum and Platycladus orientalis on the Loess Plateau. Based on the Logistic equation, annual growth of seedlings could be divided into three growth stages, early-growth stage, fast-growth stage and late-growth stage. According to the gray correlation analysis three kinds of key climate factors influencing seedling growth including air temperature, relative humidity and illuminating intensity were found. The results showed that the effect degree of every climate factor exhibited the following order： relative humidity〉air temperature 〉 illuminating intensity

关 键 词：LOGISTIC方程 灰色关联度 树高生长 幼树 

分 类 号：S718.556[农业科学—林学]