伐木干扰对巴布亚新几内亚低地雨林地上草本植物物种丰富度、多样性和组成的影响

IF 0.8 Q3 EDUCATION & EDUCATIONAL RESEARCH Case Studies in the Environment Pub Date : 2021-01-01 DOI:10.1525/cse.2021.1517753
P. Lamei, F. Attorre, R. Testolin, M. De Sanctis, R. Turia, Abe Hitofumi
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引用次数: 3

摘要

分析了采伐活动对巴布亚新几内亚低地森林地面草本层物种丰富度、多样性和组成的影响。第一次多用途国家森林清查收集了马当、新不列颠西部和中部省份的平原和扇形低海拔森林(P)和高地森林(H)的52个样地的数据。陆地草本植物10609种,隶属于35科103属174种。从重要性值来看,槟榔科在采伐和未采伐的P林类型中均为优势科,而在采伐和未采伐的H林类型中分别占优势科和槟榔科。在种水平上,P型以食Donax canformis和beccarii Elatostema为主,H型以诺沃几内亚Elatostema novoguineensis和durvilselaginella为主。物种丰富度、多样性和组成分析表明,两种类型之间存在显著差异,H型比P型更丰富、更多样化。两种类型的伐木和未伐木之间没有差异,表明当前的干扰强度似乎对地面草本层没有显著影响。由于草本物种是热带森林多样性的重要组成部分,因此必须沿着更宽的海拔梯度进行进一步的调查,以使这些结果更可靠,并更好地观察物种更替模式和β多样性。
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Disturbance Impacts of Logging on Ground Herbaceous Plant Species Richness, Diversity, and Composition of Lowland Rainforest of Papua New Guinea
The impact of logging activities on species richness, diversity, and composition of the ground herbaceous layer of the lowland forest of Papua New Guinea was analyzed. Data from the first multipurpose National Forest Inventory were collected in 52 plots from logged and unlogged low altitude forest on plains and fans (P) and forest on uplands (H) in Madang, West New Britain and Central Provinces. The abundance of 10,609 ground herbaceous plants classified in 174 species from 103 genera and 35 families. Based on importance values, Arecaceae was the dominating family in both logged and unlogged P forest type, while Urticaceae and Arecaceae were dominating respectively in logged and unlogged H forest type. At species level, Donax canniformis and Elatostema beccarii are dominating the P type, and Elatostema novoguineensis and Selaginella durvillei the H type. Analysis of species richness, diversity, and composition showed significant differences between the two types with the H type being richer and more diverse than P type. No differences emerged between logged and unlogged of both types, indicating that the current intensity of disturbance does not seem to have a significant impact on the ground herbaceous layer. Since herbaceous species are an important component of the tropical forest diversity, further inventories must be conducted along a wider elevation gradient to make these results more robust and better observe species turn over patterns and beta diversity.
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CiteScore
1.40
自引率
12.50%
发文量
18
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