摘要
通过对陕西富县大麦秸沟地区柴松群落的调查研究,用STATISTICA软件进行聚类分析,将其划分为4个类型:胡枝子柴松林、水木旬子柴松林、铁扫帚柴松林和狼牙刺柴松林;得出了柴松种群以缓慢增长为特征的年龄结构、有大量幼苗补充但幼树高死亡率的更新特点以及幼龄林即发生邻接效应的自疏规律,并预测了该林分趋于稳定的发展趋势.
By the investigation of Pinus tabulaeformis f. shekannesis community in Fu County, Shaanxi, the community can be carried on cluster analysis and divided into four types with STATISTICA software: namely the P. tabulaeformis f. shekannesis forest of Lespedeza bicolor, P. tabulaeformis f. shekannesis forest of Cotoneaster multiflorus, P. tabulaeformis f. shekannesis forest of Indigofera bungeana , P. tabulaeformis f. shekannesis forest of Sophora davidii, and the age structure of characteristics increasing slowly, renewal under stand characteristics of seedlings high supplement but young trees high death rate, the law of adjacency effect taking place in young stand were analyzed. Meanwhile, a development trend of this stand towards stability was forecasted.
出处
《西北植物学报》
CAS
CSCD
2003年第9期1486-1490,共5页
Acta Botanica Boreali-Occidentalia Sinica
基金
德国联邦科研部
国家科技部 DegradierungsgefahrnundRenaturierungdurchWiederbewaldinginLO¨B-landschaftender-nordchinesischenProwinzShaanxiChina (0339743 )
关键词
柴松
群落学
黄土高原
年龄结构
Pinus tabulaeformis f. shekannesis
community
Loess Plateau
age structure
