August 11, 2025Remote SensingOpen Access

Quantitative Estimation of Vegetation Carbon Source/Sink and Its Response to Climate Variability and Anthropogenic Activities in Dongting Lake Wetland, China

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Analysis shows carbon sink degradation from anthropogenic activities in Dongting Lake wetlands, highlighting climate impacts.

The annual mean spatial net ecosystem productivity was 50.24 g C/m2/a, showing a decreasing trend over the 22-year period.
Human activities contributed to a net carbon sink degradation of -3.73 g C/m2/a, while climate variability enhanced carbon sequestration by +2.17 g C/m2/a.
The Carnegie-Ames-Stanford Approach model was utilized to assess the carbon dynamics and their driving mechanisms in this wetland ecosystem.
These insights underscore the need for land use adjustments to sustain wetland carbon sinks under changing climatic conditions.

Guo et al. (2025) studied this question.

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