Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2018.10.024 |
Climate and soils determine aboveground biomass indirectly via species diversity and stand structural complexity in tropical forests | |
Ali, Arshad1; Lin, Si-Liang1; He, Jie-Kun1; Kong, Fan-Mao2; Yu, Jie-Hua1; Jiang, Hai-Sheng1 | |
2019-01-15 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT |
ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2019 |
卷号 | 432页码:823-831 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Theoretical and empirical studies have suggested that climate and soils are the main drivers of biodiversity, stand structure and aboveground biomass in natural forests. Yet, the direct effects of climate and soils on aboveground biomass versus the indirect effects mediated by species diversity and stand structural complexity remain unclear in forest ecosystems across large-scale ecological gradients. Here, we hypothesized that (1) climate and soils would influence aboveground biomass through strong indirect effects; (2) stand structural complexity rather than species diversity would strongly mediate the response of aboveground biomass to climate and soils; and (3) species diversity and stand structural complexity would promote each other under the niche differentiation and facilitation effects, and that stand structural complexity would have positive effects on aboveground biomass across large-scale ecological gradients. To test these hypotheses, we quantified climatic water availability, soil total exchangeable bases, species diversity, stand structural complexity including tree DBH (diameter at breast height) diversity and height diversity, and aboveground biomass across 907 plots in tropical forests of Hainan Island, Southern China. We tested 126 structural equation models to examine the direct and indirect effects of climate and soils on aboveground biomass via species diversity and stand structural complexity. Climatic water availability and soil fertility did not affect aboveground biomass directly but did affect indirectly via increasing stand structural complexity rather than species diversity. Species diversity and stand structural complexity promoted each other, and both increased with increasing climatic water availability. Stand structural complexity increased aboveground biomass directly, whereas species diversity increased it indirectly via increasing stand structural complexity. The total effects of climatic water availability, soil fertility, stand structural complexity and species diversity on aboveground biomass were significantly positive. This study shows that climatic water availability exerts a strong direct effect on stand structural complexity, indicating that any decrease in climatic water availability (i.e. increasing atmospheric drought) may directly diminish stand structural complexity and hence indirectly reduce aboveground biomass and carbon storage. This study suggests that maintaining high stand structural complexity can enhance aboveground biomass under favourable climate and soils while maintaining the benefits of species diversity on stand structural complexity for better ecosystem services such as carbon storage. |
英文关键词 | Competitive exclusion Ecosystem functioning Facilitation effect Light capture and use Multilayered stand structure Niche differentiation |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000455068700079 |
WOS关键词 | TERRESTRIAL PLANT-PRODUCTION ; FUNCTIONAL COMPOSITION ; TREE PRODUCTIVITY ; CARBON STORAGE ; DRY ZONE ; BIODIVERSITY ; CONSEQUENCES ; CONVERGENCE ; TEMPERATURE ; MECHANISMS |
WOS类目 | Forestry |
WOS研究方向 | Forestry |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/23102 |
专题 | 气候变化 |
作者单位 | 1.South China Normal Univ, Sch Life Sci, Spatial Ecol Lab, Guangzhou 510631, Guangdong, Peoples R China; 2.Guangzhou Qimao Ecol Technol Co Ltd, Guangzhou 510631, Guangdong, Peoples R China |
推荐引用方式 GB/T 7714 | Ali, Arshad,Lin, Si-Liang,He, Jie-Kun,et al. Climate and soils determine aboveground biomass indirectly via species diversity and stand structural complexity in tropical forests[J]. FOREST ECOLOGY AND MANAGEMENT,2019,432:823-831. |
APA | Ali, Arshad,Lin, Si-Liang,He, Jie-Kun,Kong, Fan-Mao,Yu, Jie-Hua,&Jiang, Hai-Sheng.(2019).Climate and soils determine aboveground biomass indirectly via species diversity and stand structural complexity in tropical forests.FOREST ECOLOGY AND MANAGEMENT,432,823-831. |
MLA | Ali, Arshad,et al."Climate and soils determine aboveground biomass indirectly via species diversity and stand structural complexity in tropical forests".FOREST ECOLOGY AND MANAGEMENT 432(2019):823-831. |
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