苏南丘陵马尾松天然林与人工林生长规律比较  

Comparisons of growth law of Pinus massoniana natural forest and plantation in hilly region of southern Jiangsu province

作　　者：刘坤[1] 曹林[1] 周春国[1] 

机构地区：[1]南京林业大学林学院,江苏南京210037

出　　处：《中南林业科技大学学报》2015年第2期44-48,71,共6页Journal of Central South University of Forestry & Technology

基　　金：江苏省高校自然科学研究项目资助(14KJB220002)

摘　　要：以苏南丘陵地区的马尾松天然次生林和人工林为研究对象,进行了树干解析及各测树因子(即胸径、树高和材积)的生长模型拟合,并依据该区域森林资源历史调查数据中的森林起源信息对马尾松天然林与人工林生长状况进行了对比分析。结果表明:马尾松人工林的胸径和树高连年生长量最大值出现在10年左右,平均生长量最大值出现在15年左右;马尾松天然林的胸径和树高连年生长量最大值出现在18年左右,平均生长量的最大值同样出现在15年左右;马尾人工林数量成熟龄为47年,天然林数量成熟龄为50年;选用Richards生长模型对区域内马尾松各测树因子进行拟合的效果最好。By taking Pinus massoniana natural forest and plantation in the hilly districts in Southern Jiangsu as the tested objects, the stem analyses of two kinds of forests were conducted, the growth models of tree-measurement factors（diameter at breast height, tree height, and volume） were fitted, and according to forest resources origin information of historical survey data for the region, the growth status of the two kinds of forests were compared and analyzed. The results show that the maximum value of current annual DBH and height growth of P. massoniana plantation was detected in about 10 th year, and the maximum average growth of that appeared in about 15 th year; The maximum value of current annual DBH and height growth of P. massoniana natural forests appeared in about 18 th year, and the maximum average growth of that also appeared in about 18 y ear; P. massoniana plantations reached their quantitative mature age at 47-year-old and P. massoniana natural forests＇ was 50-year-old; and the best P. massoniana fitting model for the three forest measurement factors is Richards model in this forest area.

关 键 词：马尾松 天然次生林 人工林 生长规律 树干解析 苏南丘陵地区 

分 类 号：S791.248[农业科学—林木遗传育种]