The impacts of land‐use and climate change on the Zoige peatland carbon cycle: A review

Abstract

The Zoige peatlands are the largest peatland area in China, and the largest high‐altitude peatland in the world. As with many peatlands worldwide, degradation from land management and climate change mean that the intact Zoige peatland area has decreased, potentially reducing the carbon (C) sink function and ecosystem services. This review summarizes current knowledge of the impacts of land‐use and climate change on the Zoige peatland C cycle in a global perspective and identifies future research and management directions. The existing literature suggests that artificial drainage carried out to lower water tables and improve grazing has a significant impact on the peatland C cycle. Drained and degraded areas may act as a net C source, through increased CO2 emissions, although the overall C balance of the Zoige peatlands is likely still a net C sink. Future climate change may also impact upon the peatland C cycle. Warming of 2°C may significantly reduce the strength of the C sink of intact peatland areas, which may shift the overall Zoige peatland C cycle balance to a net C source. The effect of warming on degraded Zoige peatlands is a major uncertainty, although the global literature suggests warming effects may be greater in degraded peatlands. Restoration of degraded peatlands (by blocking drains) may help reverse some of the impacts of degradation and gradually recover C sink function. However, there are fewer studies in Zoige peatlands than elsewhere. We conclude with several specific suggestions for future research on the peatland C cycle.This article is categorized under: Paleoclimates and Current Trends > Modern Climate Change Assessing Impacts of Climate Change > Observed Impacts of Climate Change Climate, Ecology, and Conservation > Observed Ecological Changes

Analysis of Peatland Research Trends Based on BERTopic

“…Peatlands have garnered increasing attention throughout the international community, with studies reporting on the relationship between peatland and the climate crisis, reducing greenhouse gases using peatland [10][11][12], and changes in peatland microbial ecosystems with climate change [13]. Given the surge in peatland research, a need exists for the classification of associated peatland research topics such as climate change, greenhouse gases, and microbial ecosystems, etc.…”