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模糊聚类在松属种间生理差异中的应用(PDF)

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

Issue:
1998年03期
Page:
95-98
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
INTERSPECIFIC VARIATION IN PHYSIOLOGY OF CONIFERAND ANALYSIS BY FUZZY CLUSTER
Article ID:
1000-2006(1998)03-0095-04
Author(s):
Zhang Ruhua Chen Tianhua Zheng Youfei(Nanjing Forestry University Nanjing 210037) (Nanjing Meterology College)Wang Qiming
Forestry Research Institue of Jiangsu
Keywords:
Pinus Physiolosical difference Fuzzy cluster analysis
Classification number :
-
DOI:
10.3969/j.jssn.1000-2006.1998.03.021
Document Code:
A
Abstract:
Based on measurements of net photosyn thesis (NP),stomatal resistence (RS) and transpiration (TR),the vesults showed that there existed similar physiological characteristics among some species of conifer. This implied that physiological requirements for environmental conditions, in which some species of conifer were grown, are identical. By the analysis of fuzzy cluster,eight species were divided into three groups. The first group was characterized by high NS and RS.and low TR,and correspondingly fit for a site with high light intensity, greater CO2 concentration and low water demand; the second was opposite in characters and the last median. so it is necnssary to choose trees suited to the site to get more economical benefit.

References

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Last Update: 1900-01-01