QUANTITATIVE ANALYSIS FOR INTERSPECIFIC RELATIONSHIP OF LARCH STAND MIXED WITH ASH

作     者：李茹秀 

作者机构：Northeast Forestry University 

出 版 物：《Journal of Northeast Forestry University》 (林业研究(英文版))

年 卷 期：1995年第6卷第3期

页      面：71-73页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 0907[农学-林学] 08[工学] 0829[工学-林业工程] 09[农学] 0901[农学-作物学] 

主　　题：Dahurian larch Fraxinus mandshurica Mixed forest, interspecific competition 

摘      要：Permanent sample plots were set up for researching interspecific relationship of the artificia1 larch stand mixed with natural ash in the slash site in Maoershan Experiment Forestry Farm of Northeast Forestry University. All trees in the plots were taken as objective trees and tree number,DBH, distance between trees and that of crown diameter were measured in range of 1-6m from every objective tree. Then study by Alemdag competition index, variance analysis and quantitation method were made. The result showed that the intraspecific competition was more intensive than the interspecific competition. Especially the competition between larch and ash was least relatively. For these kinds of site, the suitable mixture at 20-30 ages should be 2800 Ind/hm2 in density and 2 larch;1 ash in mixed ratio, which might improve site condition to promote stand produetivity.