摘要
沟系作为自然保护区内次级自然单元和管护单元,具有较强的分区确限性和可控性,主观因素少,便于制订针对性强的自然保护区规划和管护措施.以沟系作为评价尺度,构建群落物种多样性优先保护评价体系,有助于增强自然保护区规划及功能区划的科学性,进一步提高自然保护区管理水平.以连城国家级自然保护区为例,通过主成分分析方法,建立了群落类型及沟系群落物种多样性优先保护评价体系.结果表明:该保护区群落类型优先保护顺序为:青杄林、红桦林、绣线菊灌丛、杜鹃灌丛、青海云杉林、小檗灌丛、糙皮桦林、油松林、栒子灌丛、白桦林、祁连圆柏林、山杨林、鼠李灌丛、金露梅灌丛、锦鸡儿灌丛以及柳灌丛;沟系优先保护顺序为:岗子沟、竹林沟、曲红土沟、小杏儿沟、下细沟、棚子沟、吐鲁沟、铁城沟、小岗子沟、指南北沟、景致沟、上细沟、水磨沟以及苏都沟.
The primary valleys as the secondary natural units and management units within a nature reserve have strong definition and controllability in its geographic ranges, so that a nature reserve functional division on the basis of valleys has less subjective factors and is convenient for formulating more pertinent reserve planning and relevant management measures. Constructing the conservation priority evaluation systern of community species diversity of the secondary natural units, the valleys within a nature reserve,as the evaluation scale would be helpful to enhance nature reserve planning and functional division more scientific and promote management level. Taking the condition data from the Liancheng National Nature Reserve of Gansu Province as the case,and applying the method of principal component analysis,a conservation priority evaluation system of community species diversity of community types and the valleys was constructed in this paper. The results showed that the conservation priority ordination of community types in the nature reserve was as follows： Picea wilsonii forest,Betula albo-sinensis forest, Spiraea shrub,Rhododendron shrub, Picea crassi folia forest, Berberis shrub,Betula utilis forest, Pinus tabulaeformis forest,Cotoneaster shrub, Betula platyphylla forest, Sabina przewalskii forest, Populus davidiana forest,Rhamnus shrub, Potentilla fruticosa shrub, Caragana shrub and Salix shrub; the conservation priority ordination of the valleys was as follows ： Tulu Valley, Zhulin Valley, Gangzi Valley, Tiecheng Valley, Shuimo Valley, Xiaoxinger Valley, Xiaxi Valley, Pengzi Valley, Xiaogangzi Valley, Quhongtu Valley, Zhinanbei Valley, Jingzhi Valley,Shangxi Valley and Sudu Valley.
出处
《甘肃农业大学学报》
CAS
CSCD
2008年第5期122-128,共7页
Journal of Gansu Agricultural University
关键词
连城国家级自然保护区
次级自然单元
沟系
优先保护序列
群落物种多样性
主成分分析
Liancheng National Nature Reserve
secondary natural unit
valley
conservation priority ordination
community species diversity
principal component analysis
作者简介
卢镝（1982-），女，辽宁沈阳人，森林经理学硕士研究生，主要从事生物多样性保护研究．
通讯作者：孙学刚（1960-），男，教授，E—mail：sunxg60@sohu．com
