Study on the niches of the main tree populations in Taxus wallichiana var. chinensis communities in Fengyangshan mountain
Taxus wallichiana var. chinensis (yew) is a state-protected species endemic to china. The niches of the main tree populations in Taxus wallichiana var. chinensis in Fengyangshan mountain were investigated using Shannon-Winner coefficient and Pianka coefficient methods. The results showed as the foll...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Zhejiang University Press
2006-09-01
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| Series: | 浙江大学学报. 农业与生命科学版 |
| Subjects: | |
| Online Access: | https://www.academax.com/doi/10.3785/1008-9209.2006.05.0569 |
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| Summary: | Taxus wallichiana var. chinensis (yew) is a state-protected species endemic to china. The niches of the main tree populations in Taxus wallichiana var. chinensis in Fengyangshan mountain were investigated using Shannon-Winner coefficient and Pianka coefficient methods. The results showed as the following: (i) The yew communities could be divided into two types, namely Fokienia hodginsii- Rhododendron simiarum community (Type Ⅰ), and Castanopsis eyrei- Cyclobalanopsis stewardiana- Schima superba community (TypeⅡ). (ii) Type Ⅰ is more suitable for the growth of yew than type Ⅱ. (iii) Yew occupied a larger niche breadth in type Ⅱ than type Ⅰ, 0.337 in type Ⅱ and 0.248 in type Ⅰ, respectively, which showed yew making a better use of resource in type Ⅱ. But it might also suffer from a more serious competition simultaneously under a resource limitation for the niche overlapping of yew and the other species are larger in type Ⅱ than type Ⅰ. Protecting both yew and its living condition, especially for type Ⅰ, which was regarded as conservation measure, is proposed as well. |
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| ISSN: | 1008-9209 2097-5155 |