Beta Diversity Patterns and Determinants among Vertical Layers of Tropical Seasonal Rainforest in Karst Peak-Cluster Depressions

被引：6
作者：
Hu, Gang [1 ,2 ]
Pang, Qingling [1 ]
Hu, Cong [1 ,2 ]
Xu, Chaohao [1 ,2 ]
Zhang, Zhonghua [1 ,2 ]
Zhong, Chaofang [1 ]
机构：
[1] Nanning Normal Univ, Key Lab Wildlife Evolut & Conservat Mt Ecosyst Gua, Nanning 530100, Peoples R China
[2] Nonggang Karst Ecosyst Observat & Res Stn Guangxi, Chongzuo 532499, Peoples R China
来源：
FORESTS | 2024年 / 15卷 / 02期
关键词：
karst seasonal rainforest; beta diversity; species turnover; richness difference; community assembly; SPECIES COMPOSITION; R PACKAGE; COMMUNITIES; SHANXI; REPLACEMENT; NESTEDNESS; COMPONENTS; VEGETATION; MOUNTAIN; TURNOVER;
D O I：
10.3390/f15020365
中图分类号：
S7 [林业];
学科分类号：
0829 ; 0907 ;
摘要：
Karst peak-cluster depressions in tropical China are characterized by high habitat heterogeneity, supporting complex seasonal rainforest communities, and harboring a rich abundance of endemic and endangered plants. However, for these rainforests, species and phylogenetic beta diversity and their limiting factors are poorly understood. In this study, the relationships between the beta diversity of three vertical layers (herb, shrub, and tree), environmental factors, and physical distance in China's tropical karst seasonal rainforest were studied. The results showed that each layer exhibited high species and beta diversity, with species turnover being the dominant contributing factor. Environmental filtering and dispersal limitations were significant drivers of community assembly. Environmental filtering exerted a strong influence, with slope position, soil availability of phosphorus and potassium, pH, and organic matter being the key factors. These findings elucidate seasonal rainforest species and beta diversity spatial patterns within karst peak-cluster depressions, providing a foundation for developing karst ecosystem forest management and vegetation restoration measures.
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页数：15
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