A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Effect of rewetting degraded peatlands on carbon fluxes: a meta-analysis
https://orcid.org/0000-0001-6446-6166
Abstract Numerous studies claim that rewetting interventions reduce $ CO_{2} $ and increase $ CH_{4} $ fluxes. To verify the claim, we conducted a systematic review and meta-analysis of the effects of rewetting on $ CO_{2} $ and $ CH_{4} $ fluxes and dissolved organic carbon (DOC). We identified 28 primary articles eligible for meta-analysis, from which we calculated 48 effect sizes for $ CO_{2} $ emissions, 67 effect sizes for $ CH_{4} $ emissions, and 5 effect sizes for DOC. We found that rewetting significantly decreased $ CO_{2} $ fluxes, with temperate zones showing the highest Hedges’ g effect size (−0.798 ± 0.229), followed by tropical (−0.338 ± 0.269) and boreal (−0.209 ± 0.372) zones. Meanwhile, rewetting increased $ CH_{4} $ fluxes, with the highest Hedges’ g effect size shown in temperate zones (1.108 ± 0.144), followed by boreal (0.805 ± 0.183) and tropical (0.096 ± 0.284) zones. In addition, based on yearly monitoring after rewetting, the $ CH_{4} $ emissions effect size increased significantly over the first 4 years (r2 = 0.853). Overall, the rewetting intervention reduced $ CO_{2} $ emissions by −1.43 ± 0.35 Mg $ CO_{2} $–C $ ha^{−1} $ $ year^{−1} $, increased $ CH_{4} $ emissions by 0.033 ± 0.003 Mg $ CH_{4} $–C $ ha^{−1} $ $ year^{−1} $, and had no significant impact on DOC. To improve the precision and reduce the bias of rewetting effect size quantification, it is recommended to conduct more experimental studies with extended monitoring periods using larger sample sizes and apply the before-after control-impact study design, especially in boreal and tropical climate zones.
Effect of rewetting degraded peatlands on carbon fluxes: a meta-analysis
https://orcid.org/0000-0001-6446-6166
Abstract Numerous studies claim that rewetting interventions reduce $ CO_{2} $ and increase $ CH_{4} $ fluxes. To verify the claim, we conducted a systematic review and meta-analysis of the effects of rewetting on $ CO_{2} $ and $ CH_{4} $ fluxes and dissolved organic carbon (DOC). We identified 28 primary articles eligible for meta-analysis, from which we calculated 48 effect sizes for $ CO_{2} $ emissions, 67 effect sizes for $ CH_{4} $ emissions, and 5 effect sizes for DOC. We found that rewetting significantly decreased $ CO_{2} $ fluxes, with temperate zones showing the highest Hedges’ g effect size (−0.798 ± 0.229), followed by tropical (−0.338 ± 0.269) and boreal (−0.209 ± 0.372) zones. Meanwhile, rewetting increased $ CH_{4} $ fluxes, with the highest Hedges’ g effect size shown in temperate zones (1.108 ± 0.144), followed by boreal (0.805 ± 0.183) and tropical (0.096 ± 0.284) zones. In addition, based on yearly monitoring after rewetting, the $ CH_{4} $ emissions effect size increased significantly over the first 4 years (r2 = 0.853). Overall, the rewetting intervention reduced $ CO_{2} $ emissions by −1.43 ± 0.35 Mg $ CO_{2} $–C $ ha^{−1} $ $ year^{−1} $, increased $ CH_{4} $ emissions by 0.033 ± 0.003 Mg $ CH_{4} $–C $ ha^{−1} $ $ year^{−1} $, and had no significant impact on DOC. To improve the precision and reduce the bias of rewetting effect size quantification, it is recommended to conduct more experimental studies with extended monitoring periods using larger sample sizes and apply the before-after control-impact study design, especially in boreal and tropical climate zones.
Effect of rewetting degraded peatlands on carbon fluxes: a meta-analysis
https://orcid.org/0000-0001-6446-6166
Abstract Numerous studies claim that rewetting interventions reduce $ CO_{2} $ and increase $ CH_{4} $ fluxes. To verify the claim, we conducted a systematic review and meta-analysis of the effects of rewetting on $ CO_{2} $ and $ CH_{4} $ fluxes and dissolved organic carbon (DOC). We identified 28 primary articles eligible for meta-analysis, from which we calculated 48 effect sizes for $ CO_{2} $ emissions, 67 effect sizes for $ CH_{4} $ emissions, and 5 effect sizes for DOC. We found that rewetting significantly decreased $ CO_{2} $ fluxes, with temperate zones showing the highest Hedges’ g effect size (−0.798 ± 0.229), followed by tropical (−0.338 ± 0.269) and boreal (−0.209 ± 0.372) zones. Meanwhile, rewetting increased $ CH_{4} $ fluxes, with the highest Hedges’ g effect size shown in temperate zones (1.108 ± 0.144), followed by boreal (0.805 ± 0.183) and tropical (0.096 ± 0.284) zones. In addition, based on yearly monitoring after rewetting, the $ CH_{4} $ emissions effect size increased significantly over the first 4 years (r2 = 0.853). Overall, the rewetting intervention reduced $ CO_{2} $ emissions by −1.43 ± 0.35 Mg $ CO_{2} $–C $ ha^{−1} $ $ year^{−1} $, increased $ CH_{4} $ emissions by 0.033 ± 0.003 Mg $ CH_{4} $–C $ ha^{−1} $ $ year^{−1} $, and had no significant impact on DOC. To improve the precision and reduce the bias of rewetting effect size quantification, it is recommended to conduct more experimental studies with extended monitoring periods using larger sample sizes and apply the before-after control-impact study design, especially in boreal and tropical climate zones.
Effect of rewetting degraded peatlands on carbon fluxes: a meta-analysis
Darusman, Taryono (author) / Murdiyarso, Daniel (author) / Anas, Iswandi (author)
2023
Article (Journal)
Electronic Resource
English
BKL:
43.47
Globale Umweltprobleme
/
43.47$jGlobale Umweltprobleme
Rewetting Tropical Peatlands Reduced Net Greenhouse Gas Emissions in Riau Province, Indonesia
| DOAJ | 2022
Significant sedge-mediated methane emissions from degraded tropical peatlands
| DOAJ | 2020