文献类型：期刊文献

中文题名：北京西山油松人工林结构特征研究

英文题名：Study on stand structure of Chinese pine plantations in Xishan Municipal State Forest Farm of Beijing

作者：刁军[1] 雷相东[1] 国红[1] 李涛[2] 任云卯[1] 陆元昌[1]

第一作者：刁军

机构：[1]中国林业科学研究院资源信息研究所;[2]北京市西山试验林场

年份：2009

卷号：24

期号：3

起止页码：225-231

中文期刊名：河北林果研究

外文期刊名：Hebei Journal of Forestry and Orchard Research

收录：CSTPCD

基金：北京市科委重大科技项目"北京山区森林健康经营关键技术研究与示范"(D0706001000091);中央级公益性科研院所基本科研业务费专项(RIFRIGTZGZ2007008)

语种：中文

中文关键词：油松人工林;直径分布;树高分布;物种多样性;林下天然更新

外文关键词：close-to-natural transformation of Chinese pine plantation; stand diameter distribution; tree height distribution; tree species diversity; understory natural regeneration

分类号：S791.254

摘要：以西山试验林场近自然经营试点区建立的11块中龄油松人工林样地为依据,对油松林分的结构特点、表达模型和树种多样性格局进行了分析。结果表明:油松人工林林分平均密度为1069株/hm2,平均胸径为13.7cm,平均高为8.6m,蓄积量为86.36m3/hm2。应用正态分布、Weibul1分布、对数正态分布、Gamma分布和Beta分布拟合直径和树高结构,发现正态分布拟合直径分布和树高分布效果最好,也符合人工林的林分结构规律;油松人工林层次结构简单,物种多样性较低,乔木层、灌木层和草本层的Shannon-wiener指数、均匀度指数分别为0.355、0.726、0.160和0.372、0.651、0.266;幼苗更新各高度级均以构树和栾树为主,他们分别占总体更新树种的72.2%和10.2%。
With emphasis on landscape and environment improvement, multi - functional forest management under the guideline of close-to-natural way has become recent developing tendency of Xishan Municipal State Forest Farm of Beijing. Since forest functions are influenced by stand structure, the characteristics of stand structure were studied in 11 Chinese pine plantation plots in the Xishan forest farm for finding improvement clues of forest service function. The results show that： （1） The average density of Chinese pine plantation is t 069 trees/hm^2 ;the average diameter at breast height is 13.7 cm;the average tree height is 8.6 m; and the average growing stock volume is 86.36 m^3/hm^2. （2） Five distribution functions were employed to describe diameter and tree height structure which were normal distribution, WeibuU distribution, log-normal distribution, Gamma distribution and Beta distribution, and the normal distribution was the best one. The result was also in line with the laws of stand structure of plantation. （3） The structure of Chinese pine plantation was simple and species diversity was low. The Shannon diversity index and evenness index of tree layer, shrub layer and herb layer were 0.355, 0.726, 0.160 and 0.372, 0.651, and 0.266, respectively. （4） The seedlings were mainly composed of Broussonetia popyrifera and Koelrenteria paniculata at all height levels. They occupied 72.2% and 10.2% of the total seedlings, respectively. This paper proposed some suggestions on close-to-nature forest management of Chinese pine plantation based on its structure charaeterisfies.