Effect of microenvironmental quantitative regulation on growth of Korean pine trees planted under secondary forest

作     者：CONG Jian Shen Hai-Long YANG Wen-Hua FAN Shao-Hui ZHANG Qun 

作者机构：School of Forestry Northeast Forestry University Harbin 150040 China International Centre for Bamboo and Rattan Beijing 100102 China Research Institute of Forestry Chinese Academy of Forestry Beijing100091 China 

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

年 卷 期：2011年第22卷第2期

页      面：175-181页

核心收录：

学科分类：0905[农学-畜牧学] 09[农学] 

基　　金：supported by the Project of AGRFUND from Ministry of Science and Technology of the People's Republic of China (Project No. 2007GB24320427) 

主　　题：Pinus koraiensis under canopy planting microenvironment quantitative regulation opening degree 

摘      要：Korean pine（Pinus koraiensis） and broadleaved mixed forest in Northeast China has been changed regressively into secondary forest with almost no *** Korean pine trees under the canopy of secondary forest is a feasible approach for recovering Korean pine and broadleaved mixed *** establishing an effective growth promotion method for under-canopy planted young Korean pine trees,two stands were selected as the experiment plots,Stand A（planted in 1989） and Stand B（planted in 1982）,and an experiment of microenvironment regulation was conducted relying mainly on Opening degree（K=1,K=1.5,K=2,CK） in *** results were shown that the adjustment had promoted growth of diameter and height of Korean pine planted in Stand A and Stand B,and had a significant influence on the growth rate of basal diameter,diameter at breast height and height in the two growth *** four years periodic increment of mean diameter and height of Korean pine planted in 1989 and in 1982 after regulation in K=1 level were 63.4%（D0） and 82.7%（H）,64.8%（D1.3） and 69.7%（H） higher than that of control *** regulation had significant influence on specific leaf area of Korean pine planted in 1989,and the current year specific leaf area（SLA） was lager than perennial year *** indexes of natural pruning capacity,normal form quotient and crown size was not significantly changed but shown a positive *** regulation scheme of Opening degree K=1 might be proper for adjusting the microenvironment of Korean pine trees planted under the canopy of secondary forest when the Korean pine trees were in the growth period of 15 to 26 years old in the experiment region.