ORIGINAL RESEARCH
Study on the Intraspecific and Interspecific
Competition of Pseudolarix amabilis in Changxing
County, Zhejiang Province
| 1 | College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, China |
| 2 | Faculty of Criminal Science & Technology, Nanjing Forest Police College, Nanjing 210023, China |
CORRESPONDING AUTHOR
Chun-Ping Xie
College of Costal Agriculture Science, Guangdong Ocean University, 524088, Zhanjiang, China
College of Costal Agriculture Science, Guangdong Ocean University, 524088, Zhanjiang, China
Submission date: 2020-10-06
Final revision date: 2020-11-02
Acceptance date: 2020-11-11
Online publication date: 2021-04-06
Publication date: 2021-06-09
Pol. J. Environ. Stud. 2021;30(4):3317–3325
KEYWORDS
Pseudolarix amabilisintraspecific competitioninterspecific competitioncompetition indexChangxing county
TOPICS
ABSTRACT
Pseudolarix amabilis (Nelson) Rehd. is a rare and endangered plant endemic to China that has played
a vital role in the study of Pinaceae phylogeny. Because of the serious effects of external factors, the
wild populations are gradually decreasing. To illustrate the competition in the P. amabilis community,
the intra- and interspecific competition of P. amabilis in Changxing County, Zhejiang Province, were
investigated based on the Hegyi individual competition index (CI) model. The relationships between
21 target trees and 454 competitor trees within the P. amabilis community were analysed by using
the competition intensity. The results indicated that competitive stress to the P. amabilis population
mainly came from interspecific competition, which accounted for approximately 70% of the total. The
intensity of interspecific competition with P. amabilis followed the order of P. amabilis>Phyllostachys
edulis>Castanea mollissima>Quercus chenii>Rhus chinensis>Acer davidii>Ilex chinensis> Platycarya
strobilacea> Lindera glauca> Castanopsis sclerophylla. The value of the competition index decreased
with increasing distance. The CI of P. amabilis with the target trees in the whole forest stand was
significantly negatively correlated with the DBH of the target trees and followed the power function
(CI = AD-B). In terms of the competition model, effective artificial measures should be implemented to
improve the survival of P. amabilis, which could help restore the wild population.
We process personal data collected when visiting the website. The function of obtaining information about users and their behavior is carried out by voluntarily entered information in forms and saving cookies in end devices. Data, including cookies, are used to provide services, improve the user experience and to analyze the traffic in accordance with the Privacy policy. Data are also collected and processed by Google Analytics tool (more).
You can change cookies settings in your browser. Restricted use of cookies in the browser configuration may affect some functionalities of the website.
You can change cookies settings in your browser. Restricted use of cookies in the browser configuration may affect some functionalities of the website.