文献类型：期刊文献

中文题名：沙地樟子松天然纯林的结构特征

英文题名：Structure Characters of Pinus sylvestris var. mongolica Natural Forest on Sandy Land

作者：刘灵[1] 胡艳波[2] 王千雪[1] 王宏翔[2] 张吉利[1] 王春来[3] 赵中华[2]

第一作者：刘灵

机构：[1]国家林业局哈尔滨林业机械研究所,黑龙江哈尔滨150086;[2]中国林业科学研究院林业研究所,国家林业局林木培育重点实验室,北京100091;[3]红花尔基林业局森林调查大队,内蒙古海拉尔021112

年份：2016

卷号：29

期号：5

起止页码：623-629

中文期刊名：林业科学研究

外文期刊名：Forest Research

收录：CSTPCD;;Scopus;北大核心:【北大核心2014】；CSCD:【CSCD2015_2016】；

基金：国家自然科学基金项目(31370638);中央级公益性科研院所基本科研业务费专项资金(CAFYBB2016MB006)

语种：中文

中文关键词：沙地樟子松;天然纯林;一元分布;二元分布

外文关键词：Pinussylvestris var. mongolica; natural forest; univariate distribution; bivariate distribution

分类号：S791.253

摘要：[目的]为了解红花尔基地区沙地樟子松天然纯林的结构特征,指导沙地樟子松的保护与经营。[方法]在红花尔基地区设置2块100 m×100 m的樟子松天然纯林固定样地,利用样地内每木定位调查数据和分析统计软件进行一元分布及二元分布特征分析。[结果](1)樟子松天然林纯林直径分布为单峰或多峰山状分布,垂直结构简单,只有乔木层和草本层。(2)樟子松天然纯林的林木分布格局为均匀分布,接近随机分布,林木分布格局类型与林分密度无关;林分中樟子松个体竞争激烈,多数单元中林木呈较密集状态。(3)2块样地中随机分布状态下的林木多数为中等密集或比较密集,不同分布状态下的林木优劣性差异较小;低密度樟子松天然纯林中多数密集状态的林木为绝对优势木或优势木,而高密度林分中林木密集度分布与林木大小无关。[结论]红花尔基沙地樟子松天然林结构不合理,应选择病腐木及聚集分布的个体作为潜在调整对象,进行密度调整和结构优化。
[ Objective] To understand the structure characters of Pinussylvestris var. mongolica natural forest on Honghuaerji sandy land and provide the basis for protection and management. [ Method] The data of 2 sample plots of 100 m× 100 m with each tree positioning were analyzed by the characteristics of univariate distribution and bivari- ate distribution with statistical software. [ Result ] The results show that （ 1 ） The diameter at breast height （DBH） distribution of P. sylvestris var. mongolica natural forest follows a single or multi shaped peak curve, and the vertical structure is simple, with only tree layer and herb layer. （2） The spatial distribution pattern of P. sylvestris var. mongolica natural forest is uniform distribution, close to random distribution; the spatial distribution pattern has nothing to do with the stand density; the stand in the fierce competition in the majority of individuals of P. sylvestris var. mongolica. （3） Under the condition of random distribution, most trees on the two sample plots are medium dense or dense, with little difference in dominance under different distribution patterns. In low-density P. sylvestris var. mongolicapure forest, most trees in intensive state aredominant trees, while in high-density forest, no relation was found between stand density and tree size distribution. [ Conclusion ] The structure of P. sylvestris var. mongol- ica natural forest on Honghuaerji sandy land is unreasonable ; some measures of density adjustment and structure op- timization should be taken to improve the forest health.