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Practical Guide to Measuring Wetland Carbon Pools and Fluxes
Journal article   Open access   Peer reviewed

Practical Guide to Measuring Wetland Carbon Pools and Fluxes

Sheel Bansal, Irena F Creed, Brian A Tangen, Scott D Bridgham, Ankur R Desai, Ken W Krauss, Scott C Neubauer, Gregory B Noe, Donald O Rosenberry, Carl Trettin, …
Wetlands (Wilmington, N.C.), Vol.43, 105
28/11/2023
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Practical Guide to Measuring Wetland Carbon Pools and Fluxes15.54 MBDownloadView
Published (Version of record)CC BY V4.0 Open Access
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https://doi.org/10.1007/s13157-023-01722-2View
Published (Version of record) Open

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Abstract

Accretion Accumulation Biomass Bulk density Carbon cycling Chambers Core Decomposition Dissolved gas Dissolved organic carbon Eddy covariance Greenhouse gas Groundwater Hydrology Incubation Lateral transport Litter Methane Methods Microbes Models Net primary productivity Plants Porewater Radiometric dating Remote sensing Sediment Soil organic carbon Water Vegetation
Wetlands cover a small portion of the world, but have disproportionate influence on global carbon (C) sequestration, carbon dioxide and methane emissions, and aquatic C fluxes. However, the underlying biogeochemical processes that affect wetland C pools and fluxes are complex and dynamic, making measurements of wetland C challenging. Over decades of research, many observational, experimental, and analytical approaches have been developed to understand and quantify pools and fluxes of wetland C. Sampling approaches range in their representation of wetland C from short to long timeframes and local to landscape spatial scales. This review summarizes common and cutting-edge methodological approaches for quantifying wetland C pools and fluxes. We first define each of the major C pools and fluxes and provide rationale for their importance to wetland C dynamics. For each approach, we clarify what component of wetland C is measured and its spatial and temporal representativeness and constraints. We describe practical considerations for each approach, such as where and when an approach is typically used, who can conduct the measurements (expertise, training requirements), and how approaches are conducted, including considerations on equipment complexity and costs. Finally, we review key covariates and ancillary measurements that enhance the interpretation of findings and facilitate model development. The protocols that we describe to measure soil, water, vegetation, and gases are also relevant for related disciplines such as ecology. Improved quality and consistency of data collection and reporting across studies will help reduce global uncertainties and develop management strategies to use wetlands as nature-based climate solutions.

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