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云南富源光皮桦种群与主要伴生树种生态位研究(PDF)

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

Issue:
2006年02期
Page:
63-66
Column:
研究论文
publishdate:
2006-02-20

Article Info:/Info

Title:
Study on Niche of Betula luminifera Population and Its Main Associated Tree Species in Fuyuan, Yunnan
Article ID:
1000-2006(2006)02-0063-04
Author(s):
MENG Guang-tao12 CHAI Yong2* FANG Xiang-jing2 HE Li-ping2 ZHANG Zheng-hai2 LI Gui-xiang2 LIU Wen-hui3
1. School of Soil and Water Conservation Beijing Forestry University, Beijing 100083, China; 2. Yunnan Academy of Forestry, Kunming 650204, China; 3. Forestry Bureau of Fuyuan County, Fuyuan 655500, China
Keywords:
Betula luminifera Associated tree species Niche breadth Niche proportional similarity Niche overlap
Classification number :
S718; Q948.1
DOI:
10.3969/j.jssn.1000-2006.2006.02.015
Document Code:
A
Abstract:
Using Levins and Shannon-Wiener niche breadth index, the niche of Betula luminifera population and its main associated tree species in Fuyuan County, Yunnan was studied. The results showed that B. luminifera had the biggest niche breadth. The niche breadth of Cunninghamia lanceolata, Pinus armandi ranks second. The niche breadth of other associated tree species was smallest. It indicates that B. luminifera has extensive adaptation to environment and it is the dominant species in the community. The niche proportional similarity between B. lumini f era and C. lanceolata, P. armandi was larger, showing that B. lumini f-era and C. lanceolata, P. armandi had greater resource-sharing degree. But the niche proportional similarity between B. lurninifera and most of other associated tree species were small. The niche overlap between most of tree species in B. lurninifera community were smaller, which indicated a higher niche polarization of main tree species and a weaker competition in B. lumini fera community.

References

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Last Update: 2013-05-20