Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2017.06.056 |
The forest strata-dependent relationship between biodiversity and aboveground biomass within a subtropical forest | |
Ali, Arshad; Yan, En-Rong1 | |
2017-10-01 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT
![]() |
ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2017 |
卷号 | 401 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | The relationships between biodiversity and aboveground biomass in forest ecosystems have been intensively studied in recent decades. Still, the mechanisms that underlie it remain highly debated. We hypothesized that overstorey species diversity and individual tree size variation contribute to aboveground biomass and understorey species diversity through the niche complementarity effect, while weaken the relationship between understorey aboveground biomass and individual tree size variation due to the mixed effects of tree development, biotic interaction and reduced available resources by over storey strata. The integrative relationships of species diversity and tree size variation (variation in diameter at breast height-DBH) with aboveground biomass were analysed at overstorey and understorey strata across 125 plots in a 5-ha subtropical forest in Eastern China. For comparison, we tested these relationships at individual strata (isolation modelling), and whole-community level, by using linear structural equation model while accounting for the effects of soil nutrients. The integrative modelling accounted for 35, 31, 16, 12, 4, and 0% of the variation in understorey aboveground biomass, overstorey aboveground biomass, overstorey DBH variation, overstorey species diversity, understorey species diversity, and understorey DBH variation, respectively. Overstorey DBH variation and species diversity had the positive direct effects on overstorey aboveground biomass. Overstorey species diversity significantly promoted the understorey species diversity, but DBH variation and aboveground biomass of overstorey strata had negligible effects on the diversity and aboveground biomass of understorey strata. Soil nutrients had positive direct effect on overstorey DBH variation, but negative direct effects on overstorey and understorey aboveground biomass and overstorey species diversity. These results provide strong evidence for the niche complementarity effect for driving positive relationships of species diversity and individual tree size variation with aboveground biomass at overstorey strata. The strong and consistent negative effects of soil nutrients on overstorey aboveground biomass and species diversity suggest an important mechanism that high species diversity of overstorey strata with great tree size variation on nutrient-poor soils is crucial for driving high aboveground biomass in subtropical forest ecosystems. In conclusion, this study suggests that no sole and ubiquitous relationship between biodiversity and aboveground biomass exists in a structurally complex forest, but rather that the magnitude and direction of this relationship is greatly dependent on the forest strata where available resources shift substantially. We argue that ecological models for predicting aboveground biomass would be improved by including separate effects of overstorey and understorey diversity. (C) 2017 Elsevier B.V. All rights reserved. |
英文关键词 | Ecosystem function Evergreen broadleaf forest Forest strata Niche complementarity effect Soil nutrients Species diversity Stand structure Structural equation modelling |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000408073300013 |
WOS关键词 | STRUCTURAL DIVERSITY ; SPECIES-DIVERSITY ; SIZE INEQUALITY ; FUNCTIONAL COMPOSITION ; UNDERSTORY VEGETATION ; ECOSYSTEM FUNCTION ; ALLOMETRIC MODELS ; TROPICAL FORESTS ; CARBON STORAGE ; PRODUCTIVITY |
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/22281 |
专题 | 气候变化 |
作者单位 | 1.East China Normal Univ, Sch Ecol & Environm Sci, Forest Ecosyst Res & Observat Stn Putuo Isl, Shanghai 200241, Peoples R China; 2.East China Normal Univ, Sch Ecol & Environm Sci, Tiantong Natl Forest Ecosyst Observat & Res Stn, Shanghai 200241, Peoples R China; 3.East China Normal Univ, Sch Ecol & Environm Sci, Shanghai Key Lab Urban Ecol Proc & Ecorestorat, Shanghai 200241, Peoples R China |
推荐引用方式 GB/T 7714 | Ali, Arshad,Yan, En-Rong. The forest strata-dependent relationship between biodiversity and aboveground biomass within a subtropical forest[J]. FOREST ECOLOGY AND MANAGEMENT,2017,401. |
APA | Ali, Arshad,&Yan, En-Rong.(2017).The forest strata-dependent relationship between biodiversity and aboveground biomass within a subtropical forest.FOREST ECOLOGY AND MANAGEMENT,401. |
MLA | Ali, Arshad,et al."The forest strata-dependent relationship between biodiversity and aboveground biomass within a subtropical forest".FOREST ECOLOGY AND MANAGEMENT 401(2017). |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
查看访问统计 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Ali, Arshad]的文章 |
[Yan, En-Rong]的文章 |
百度学术 |
百度学术中相似的文章 |
[Ali, Arshad]的文章 |
[Yan, En-Rong]的文章 |
必应学术 |
必应学术中相似的文章 |
[Ali, Arshad]的文章 |
[Yan, En-Rong]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论