scholarly journals Tree species diversity promotes aboveground carbon storage through functional diversity and functional dominance

2016 ◽  
Vol 6 (20) ◽  
pp. 7546-7557 ◽  
Author(s):  
Sylvanus Mensah ◽  
Ruan Veldtman ◽  
Achille E. Assogbadjo ◽  
Romain Glèlè Kakaï ◽  
Thomas Seifert

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Mengistu Teshome Wondimu ◽  
Zebene Asfaw Nigussie ◽  
Muktar Mohammed Yusuf

Abstract Background Regarding the most important ecological challenges, scientists are increasingly debating the relationship between biodiversity and ecosystem function. Despite this, several experimental and theoretical researches have shown inconsistencies in biodiversity and ecosystem function relationships, supporting either the niche complementarity or selection effect hypothesis. The relationship between species diversity, functional diversity, and aboveground biomass carbon was investigated in this study employing standing aboveground carbon (AGC) stock as a proxy measure for ecosystem function. We hypothesized that (i) effects of diversity on AGC can be transmitted through functional diversity and functional dominance; (ii) effects of diversity on AGC would be greater for functional dominance than functional diversity; and (iii) effects of functional diversity and functional dominance on carbon stock varied with metrics and functional traits. Community-weighted means (CWM) of functional traits (wood density, specific leaf area, and maximum plant height) were calculated to assess functional dominance (selection effects). As for functional diversity (complementarity effects), multi-trait functional diversity (selection effects) indices were computed. We tested the first hypothesis using structural equation modeling. For the second hypothesis, the effects of environmental variables such as slope, aspect, and elevation were tested first, and separate linear mixed-effects models were fitted afterward for functional diversity, functional dominance, and the two together. Results Results revealed that slope had a significant effect on aboveground carbon storage. Functional diversity and functional dominance were significant predictors of the aboveground carbon storage (22.4%) in the dry evergreen Afromontane forest. The effects of species richness on aboveground carbon storage were mediated by functional diversity and functional dominance of species. This shows that both the selection effects and the niche complementarity are important for aboveground carbon storage prediction. However, the functional diversity effects (niche complementarity) were greater than functional dominance effects (selection effects). Conclusions Linking diversity and biodiversity components to aboveground carbon provides better insights into the mechanisms that explain variation in aboveground carbon storage in natural forests, which may help improve the prediction of ecosystem functions.



2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Yong Shen ◽  
Shixiao Yu ◽  
Juyu Lian ◽  
Hao Shen ◽  
Honglin Cao ◽  
...  




Forests ◽  
2016 ◽  
Vol 7 (12) ◽  
pp. 217 ◽  
Author(s):  
Kyaw Sein Win Tun ◽  
Julian Di Stefano ◽  
Liubov Volkova


2010 ◽  
Vol 138 (3-4) ◽  
pp. 324-334 ◽  
Author(s):  
Amy S.I. Wade ◽  
Alex Asase ◽  
Paul Hadley ◽  
John Mason ◽  
Kwesi Ofori-Frimpong ◽  
...  


2015 ◽  
Vol 15 (4) ◽  
pp. 1291-1299 ◽  
Author(s):  
Yi-Chung Wang ◽  
Wan-Yu Liu ◽  
Shu-Hsin Ko ◽  
Jiunn-Cheng Lin




2021 ◽  
Vol 14 ◽  
pp. 194008292199541
Author(s):  
Xavier Haro-Carrión ◽  
Bette Loiselle ◽  
Francis E. Putz

Tropical dry forests (TDF) are highly threatened ecosystems that are often fragmented due to land-cover change. Using plot inventories, we analyzed tree species diversity, community composition and aboveground biomass patterns across mature (MF) and secondary forests of about 25 years since cattle ranching ceased (SF), 10–20-year-old plantations (PL), and pastures in a TDF landscape in Ecuador. Tree diversity was highest in MF followed by SF, pastures and PL, but many endemic and endangered species occurred in both MF and SF, which demonstrates the importance of SF for species conservation. Stem density was higher in PL, followed by SF, MF and pastures. Community composition differed between MF and SF due to the presence of different specialist species. Some SF specialists also occurred in pastures, and all species found in pastures were also recorded in SF indicating a resemblance between these two land-cover types even after 25 years of succession. Aboveground biomass was highest in MF, but SF and Tectona grandis PL exhibited similar numbers followed by Schizolobium parahyba PL, Ochroma pyramidale PL and pastures. These findings indicate that although species-poor, some PL equal or surpass SF in aboveground biomass, which highlights the critical importance of incorporating biodiversity, among other ecosystem services, to carbon sequestration initiatives. This research contributes to understanding biodiversity conservation across a mosaic of land-cover types in a TDF landscape.



2021 ◽  
Author(s):  
Mir Muhammad Nizamani ◽  
AJ Harris ◽  
Xia‐Lan Cheng ◽  
Zhi‐Xin Zhu ◽  
Chi Yung Jim ◽  
...  


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