By retaining up to 30%of the global soil carbon storage(an esti-mated 600 Gt C of peat carbon)despite occupying only 3%of Earth’s terrestrial area,peatlands constitute the largest carbon stock in the entire terrestri...By retaining up to 30%of the global soil carbon storage(an esti-mated 600 Gt C of peat carbon)despite occupying only 3%of Earth’s terrestrial area,peatlands constitute the largest carbon stock in the entire terrestrial biosphere and thus play an important role in global carbon cycling and the Earth’s climate system.This huge peat carbon stock accumulated over millennial timescales due to the inundated conditions in peatlands impairing decompo-sition.Their carbon sequestration is expected to mitigate climate change.It has been extensively discussed in the academic sphere and reported by media coverage of recent events such as COP29 of the United Nations Framework Convention on Climate Change(UNFCCC)and COP16 of the Convention on Biological Diversity(CBD).However,the stability of peat carbon storage is threatened by ever-intensified global change,which can shift peatlands from a carbon sink to a carbon source.Therefore,a key priority for sus-taining soil carbon under the global goal of carbon neutrality lies in protecting peatlands,and the first step in ensuring that protection lies in understanding the mechanisms underlying peat carbon sta-bilization and preservation.展开更多
基金supported by the National Key Research and Development Program of China(2024YFF0808703)the Interna-tional Partnership Program of the Chinese Academy of Sciences(069GJHZ2023013GC)+1 种基金the National Natural Science Foundation of China(42111530125)the International Exchanges Cost Share 2020 China(NSFC)award.
文摘By retaining up to 30%of the global soil carbon storage(an esti-mated 600 Gt C of peat carbon)despite occupying only 3%of Earth’s terrestrial area,peatlands constitute the largest carbon stock in the entire terrestrial biosphere and thus play an important role in global carbon cycling and the Earth’s climate system.This huge peat carbon stock accumulated over millennial timescales due to the inundated conditions in peatlands impairing decompo-sition.Their carbon sequestration is expected to mitigate climate change.It has been extensively discussed in the academic sphere and reported by media coverage of recent events such as COP29 of the United Nations Framework Convention on Climate Change(UNFCCC)and COP16 of the Convention on Biological Diversity(CBD).However,the stability of peat carbon storage is threatened by ever-intensified global change,which can shift peatlands from a carbon sink to a carbon source.Therefore,a key priority for sus-taining soil carbon under the global goal of carbon neutrality lies in protecting peatlands,and the first step in ensuring that protection lies in understanding the mechanisms underlying peat carbon sta-bilization and preservation.
