[Spatial distribution patterns and intraspecific and interspecific associations of dominant shrub species Lonicera fragrantissima var. lancifolia in Huangguan of Qinling Mountains, China]. / 秦å²çå ä¼å¿çæ¨è¦ç³æç空é´åå¸æ ¼å±åç§å
ç§é´å
³è.
Ying Yong Sheng Tai Xue Bao
; 33(8): 2027-2034, 2022 Aug.
Article
de Zh
| MEDLINE
| ID: mdl-36043807
ABSTRACT
In this study, the spatial distribution patterns of individuals with different diameter classes of dominant shrub Lonicera fragrantissima var. lancifolia and the intraspecific and interspecific relationships were analyzed in Qinling Huangguan Plot. The results showed that the diameter class structure of L. fragrantissima var. lancifolia showed a pyramid shape, with a wide bottom and a narrow top. The number of small-diameter class individuals was the largest, showing a good state of renewal and a stable growth, which was conducive to community renewal and succession. Based on Ripley's K function, using univariate and bivariate paired correlation functions, under complete spatial randomness model, heterogeneous Poisson model and antecedent condition model, all individual of the species and their diameter-dividing classes were mainly aggregated, and the aggregation degree decreased with the increases of research scale, and gradually tended to random distribution. Affected by habitat heterogeneity, diffusion restriction and negative density dependence, there was a positive correlation among different intraspecific dia-meter classes, and also a certain degree of no correlation, but without negative correlation. The interspecific relationship was complex. All types of association (no, positive and negative) were observed, but negative association and no association were dominated.
Mots clés
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Forêts
/
Lonicera
Type d'étude:
Risk_factors_studies
Limites:
Humans
Pays/Région comme sujet:
Asia
Langue:
Zh
Journal:
Ying Yong Sheng Tai Xue Bao
Sujet du journal:
SAUDE AMBIENTAL
Année:
2022
Type de document:
Article
Pays d'affiliation:
Chine