دورية أكاديمية
أعرض في EDS

Productive wetlands restored for carbon sequestration quickly become net CO2 sinks with site-level factors driving uptake variability.

التفاصيل البيبلوغرافية
العنوان: Productive wetlands restored for carbon sequestration quickly become net CO2 sinks with site-level factors driving uptake variability.
المؤلفون: Valach AC; Ecosystem Science Division, Department of Environmental Science, Policy and Management, University of California, Berkeley, CA, United States of America., Kasak K; Ecosystem Science Division, Department of Environmental Science, Policy and Management, University of California, Berkeley, CA, United States of America.; Department of Geography, Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia., Hemes KS; Ecosystem Science Division, Department of Environmental Science, Policy and Management, University of California, Berkeley, CA, United States of America.; Woods Institute for the Environment, Stanford University, Stanford, CA, United States of America., Anthony TL; Ecosystem Science Division, Department of Environmental Science, Policy and Management, University of California, Berkeley, CA, United States of America., Dronova I; Ecosystem Science Division, Department of Environmental Science, Policy and Management, University of California, Berkeley, CA, United States of America.; Department of Landscape Architecture and Environmental Planning, University of California, Berkeley, CA, United States of America., Taddeo S; Department of Landscape Architecture and Environmental Planning, University of California, Berkeley, CA, United States of America., Silver WL; Ecosystem Science Division, Department of Environmental Science, Policy and Management, University of California, Berkeley, CA, United States of America., Szutu D; Ecosystem Science Division, Department of Environmental Science, Policy and Management, University of California, Berkeley, CA, United States of America., Verfaillie J; Ecosystem Science Division, Department of Environmental Science, Policy and Management, University of California, Berkeley, CA, United States of America., Baldocchi DD; Ecosystem Science Division, Department of Environmental Science, Policy and Management, University of California, Berkeley, CA, United States of America.
المصدر: PloS one [PLoS One] 2021 Mar 25; Vol. 16 (3), pp. e0248398. Date of Electronic Publication: 2021 Mar 25 (Print Publication: 2021).
نوع المنشور: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.
اللغة: English
بيانات الدورية: Publisher: Public Library of Science Country of Publication: United States NLM ID: 101285081 Publication Model: eCollection Cited Medium: Internet ISSN: 1932-6203 (Electronic) Linking ISSN: 19326203 NLM ISO Abbreviation: PLoS One Subsets: MEDLINE
أسماء مطبوعة: Original Publication: San Francisco, CA : Public Library of Science
مواضيع طبية MeSH: Carbon Sequestration* , Climate Change* , Ecosystem* , Wetlands*, Carbon Dioxide/*metabolism, California ; Floods ; Seasons
مستخلص: Inundated wetlands can potentially sequester substantial amounts of soil carbon (C) over the long-term because of slow decomposition and high primary productivity, particularly in climates with long growing seasons. Restoring such wetlands may provide one of several effective negative emission technologies to remove atmospheric CO2 and mitigate climate change. However, there remains considerable uncertainty whether these heterogeneous ecotones are consistent net C sinks and to what degree restoration and management methods affect C sequestration. Since wetland C dynamics are largely driven by climate, it is difficult to draw comparisons across regions. With many restored wetlands having different functional outcomes, we need to better understand the importance of site-specific conditions and how they change over time. We report on 21 site-years of C fluxes using eddy covariance measurements from five restored fresh to brackish wetlands in a Mediterranean climate. The wetlands ranged from 3 to 23 years after restoration and showed that several factors related to restoration methods and site conditions altered the magnitude of C sequestration by affecting vegetation cover and structure. Vegetation established within two years of re-flooding but followed different trajectories depending on design aspects, such as bathymetry-determined water levels, planting methods, and soil nutrients. A minimum of 55% vegetation cover was needed to become a net C sink, which most wetlands achieved once vegetation was established. Established wetlands had a high C sequestration efficiency (i.e. the ratio of net to gross ecosystem productivity) comparable to upland ecosystems but varied between years undergoing boom-bust growth cycles and C uptake strength was susceptible to disturbance events. We highlight the large C sequestration potential of productive inundated marshes, aided by restoration design and management targeted to maximise vegetation extent and minimise disturbance. These findings have important implications for wetland restoration, policy, and management practitioners.
Competing Interests: The authors declare no competing interest.
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المشرفين على المادة: 142M471B3J (Carbon Dioxide)
تواريخ الأحداث: Date Created: 20210325 Date Completed: 20211011 Latest Revision: 20230919
رمز التحديث: 20240628
مُعرف محوري في PubMed: PMC7993764
DOI: 10.1371/journal.pone.0248398
PMID: 33765085
قاعدة البيانات: MEDLINE
الوصف
تدمد:1932-6203
DOI:10.1371/journal.pone.0248398