首页|Key processes of carbon cycle and sink enhancement paths in natural wetland ecosystems in China
Key processes of carbon cycle and sink enhancement paths in natural wetland ecosystems in China
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Wetland ecosystems have become one of the long-term solutions for mitigating global climate change due to their strong carbon sequestration potential.However,the key carbon cycle processes in wetland ecosystems still lack a systematic summary.In the context of wetland protection and restoration,there is still a lack of consensus on the technical pathways to realize carbon sink multiplication in wetland ecosystems.In this paper,the key processes of carbon cycle,such as photosynthetic carbon uptake,microbial carbon decomposition and carbon deposition and burial,are sorted out and summarized in four major wetland types,namely,swamp and peat wetlands,river and riparian wetlands,lake and lakeshore wetlands,and estuarine and coastal wetlands.Based on the key processes of carbon cycle,three technological pathways for carbon sink multiplication are proposed,including,vegetation carbon sequestration and sink enhancement technology,soil carbon emission reduction tech-nology and carbon deposition and burial technology.The key technologies under each pathway are further refined.And the carbon sink effects of the carbon sink technologies in different wetland types are qualitatively described.Also,wetland protection and restoration methods in corresponding regions are given in the light of the regional characteristics of wetlands in China.This will provide a scientific basis for the strategy of doubling the carbon sinks of China's wetland ecosystems.
WetlandsCarbon cycleCarbon sinksTechnology pathwaysConservation and restoration
Jinshuai LI、Tianxiang HAO、Meng YANG、Guirui YU
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Key Laboratory of Ecosystem Network Observation and Modeling,Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China
College of Resources and Environment,University of Chinese Academy of Sciences,Beijing 100049,China
Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China
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