新疆常用榆属绿化树种疏密度调查分析  

Investigation and Analysis on Density of Ulmus used in Xinjiang Landscape

作　　者：刘彤[1,2] 孙卫[2] 张冠山[2] 覃燕[2] 古丽汗 钱一萍[2] 

机构地区：[1]新疆农业大学,新疆乌鲁木齐830052 [2]乌鲁木齐市植物园,新疆乌鲁木齐830011

出　　处：《林业调查规划》2016年第4期92-97,共6页Forest Inventory and Planning

摘　　要：园林绿地树木种植密度过大会抑制树木正常生长,影响园林景观效果。对圆冠榆、裂叶榆、黄榆、大叶榆、大果榆、长枝榆6种新疆常用榆属植物实地调查冠幅及胸径,建立胸径与冠幅的回归关系,分析说明基于胸径确定植株的冠幅可行,进而根据榆属植物的冠幅确定合理种植密度,有利于确定在景观设计时所用树木的冠形大小和苗木的胸径,有利于保证绿化过程中树木生长质量和生长势,也有利于避免种间过度竞争和景观形成。High density of trees in the urban green land will inhibit the normal growth of trees and lower the landscape performance. After studying on six different kinds of commonly used tree belonged to U1- mus, the regression formula is made between the DBH and the length of crown. Results show that the crown diameter can decide the reasonable planting density, and then determine the crown size and DBH of trees used in landscape design. This work is not only helpful to ensure the quality of greening trees grow in the process of and growth potential, hut also to avoid excessive interspecific competition and land- scape formation.

关 键 词：榆属植物 绿化树种 胸径 冠幅 疏密度 株间距 

分 类 号：S792.19[农业科学—林木遗传育种] S758.58[农业科学—林学]