首 页 网络介绍 CERN新闻 规章制度 在研项目 论文与出版物 学术动态 生态知识 人员招聘 人员组成 English

    论文与出版物
   SCI论文目录
   SCI论文全文(PDF文件)
   核心期刊论文目录
   出版物目录
   研究报告目录

 出版物目录
Species Abundance in a Forest Community in South China:a Case of Poisson Lognormal Distribution
------------------------------------------------------------------------------------------
出 版 社:Acta Botanica Sinica  
发表时间:2005  
台  站: 鼎湖山森林生态系统定位研究站  
作  者:Yin Zuoyun,Ren Hai*,Zhang Qianmei,Peng Shaolin,Guo Qinfeng,Zhou Guoyi  
点 击 率:414836
------------------------------------------------------------------------------------------
关 键 字(英文):Dinghushan Biosphere Reserve; forest community; maximum likelihood estimate (MLE);reverse J-shaped curve; species abundance distribution (SAD); value-trying method;zero-truncated Poisson lognormal (PLN) distribution.  
摘  要(英文):Case studies on Poisson lognormal distribution of species abundance have been rare,especially in forest communities. We propose a numerical method to fit the Poisson lognormal to the species abundance data at an evergreen mixed forest in the Dinghushan Biosphere Reserve, South China. Plants in the tree, shrub and herb layers in 25 quadrats of 20 m×20 m, 5 m×5 m, and 1 m×1 m were surveyed. Results indicated that: (i) for each layer, the observed species abundance with a similarly small median, mode, and a variance larger than the mean was reverse J-shaped and followed well the zero-truncated Poisson lognormal; (ii) the coefficient of variation, skewness and kurtosis of abundance, and two Poisson lognormal parameters ( σ and µ) for shrub layer were closer to those for the herb layer than those for the tree layer; and (iii) from the tree to the shrub to the herb layer, the σ and the coefficient of variation decreased, whereas diversity increased. We suggest that: (i) the species abundance distributions in the three layers reflects the overall community characteristics; (ii) the Poisson lognormal can describe the species abundance distribution in diverse communities with a few abundant species but many rare species; and (iii) 1/ σ should be an alternative measure of diversity.  
------------------------------------------------------------------------------------------
Species Abundance in a Forest Community in South China:A Case of Poisson Lognormal Distribution.pdf
相关文章:
Responses of primary production and vegetation distribution of East China Forest Transect to global change
Interactive effects of symbiotic nitrogen fixation, CO2 elevation and climatic change, on legume plant growth in northern China, a simulation study
Modeling seasonal and diurnal dynamics of stomatal conductance of plants in a semiarid environment
Socio-economic driving forces of arable land conversion: A case study of Wuxian city, China
Effects of Agriophyllum squarrosum seed banks on its colonization in a woving sand dune in Hunshandake sand land of China
Effects of elevated CO2 concentration on growth, water use, yield and grain quality of wheat under two soil water levels
Response of Growth and Water Use Efficiency (WUE) of Spring Wheat to Whole Season CO2 Enrichment and Drought
Effects of burial in sand and seed size on seed germination and seedling emergence in two leguminous shrubs in Otindag Sandland, China
Taihangia rupestris, a rare cliff-dwelling herb: responses to irradiance
Plasticity in R/S ratio, morphology and fitness-related traits in response to reciprocal patchiness of light and nutrients in the stoloniferous herb, Glechoma longituba L
相关文章分页:  共 201 页 2006 条记录 9 3[101][102][103][104][105][106][107][108][109][110]4 :

[关闭窗口]
中国生态系统研究网络 版权所有
| 网络介绍 | 联系方式 | 网站地图 |