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|Table of Contents|

大仰山高山湿地山樱花种群数量结构特征(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2013年05期
Page:
40-44
Column:
研究论文
publishdate:
2013-09-30

Article Info:/Info

Title:
Numeric and structural characteristics of Cerasus serrulata population around the highelevation wetlands of Dayangshan
Article ID:
1000-2006(2013)05-0040-05
Author(s):
LI Meng1 YAN Bangxiang2 ZHAO Changgao3 XU Hongfeng3 LI Shaoxin1 YI Xiangui1 WANG Xianrong1
1.College of Forest Resources and Environment, Nanjing Forestry University, Nanjing 210037, China;
2.Zhejiang Jingning County Forestry Bureau, Jingning 323500 China;
3.Zhejiang Jingning County Tree Farm, Jingning 323500 China
Keywords:
Cerasus serrulata highelevation wetlands life table age structure structure characteristics
Classification number :
S718
DOI:
10.3969/j.issn.1000-2006.2013.05.008
Document Code:
A
Abstract:
By using the method of the typical sampling and surveys, this paper analyzed the size structure of Cerasus serrulata population in highelevation wetlands of Dayangshan. Based on the life table of a population and the theory of survival analysis, a static life table was worked out. The curves of survival rate, mortality rate and function value were drawn, and its life process was analyzed. The results showed that the age structure of C. serrulata indicated a pyramid form and Vpi, 1/k·(Sn)min value of C. serrulata population demonstrated a growing trend. Most of individuals (5859%) concentrated in the age Ⅰ and Ⅱ classes, which means young individuals were dramatically abundant. The peak of mortality was in the age Ⅰ class, while the survival curve tended to relate the type of DeeveyⅡ, relatively with the change of equation S(t), F(t), f(t) and λ(t). This population grew well and the seed germination was the main way of keeping its population stable. Highelevation wetland environment was good for the development of the C. serrulata population.

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Last Update: 2013-09-30