升温和水位下降对泥炭地碳库稳定性的影响

作者：Xianyu Huang, Yiming Zhang, Jiantao Xue, Xiaofang Yu · 发表于：Earth Science-Journal of China University of Geosciences · 年份：2025 · DOI：10.3799/dqkx.2024.119 · 被引用次数：1 · 研究领域：Peatlands and Wetlands Ecology、Bryophyte Studies and Records

Peatlands play a crucial role in the global carbon cycle by storing carbon, but they are also a major source of methane emissions.Understanding how climate change affects the stability of carbon stores in peatlands is a key area of research.This review examines the effects of factors such as warming and fluctuations in water levels on the stability of carbon stores in peatlands, as well as the role of plants in responding to warming and drought.Research indicates that peatland carbon stocks are highly sensitive to warming, with decomposition rates increasing significantly in the aerobic layer with even slight temperature increases.The anaerobic layer requires greater temperature increases and longer periods to show significant decomposition.Warming also leads to an increase in the CH 4 /CO 2 ratio, which can enhance the global warming potential of peatlands.Changes in water levels are a key factor affecting peatland carbon cycling, as drought events 基金项目： 国家自然科学基金项目(No.