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对湿地碳储量,碳循环及其影响因素与环境变化的响应特征进行了综合分析。阐述了湿地生态系统是地球上重要的碳库,通过光合作用吸收大量的CO_2,并将CO_2转化为有机物碳,使其具有碳储量丰富、碳密度高等特点;但湿地资源的不合理开发和利用,改变了湿地环境,湿地由“碳汇”向“碳源”转化,湿地温室气体的排放又加剧了温室效应;全球气温升高、海平面上升及降水量的变化又对湿地分布及功能产生重大影响。指出合理控制湿地碳循环通量是保护湿地的关键。
A comprehensive analysis of the response characteristics of wetland carbon storage, carbon cycle and its influencing factors to environmental changes was carried out. It is described that the wetland ecosystem is an important carbon deposit on the earth. It absorbs a large amount of CO 2 through photosynthesis and transforms CO 2 into organic carbon, which has the characteristics of rich carbon storage and high carbon density. However, the irrational development and utilization of wetland resources , Changing the wetland environment, wetlands from “carbon sink ” to “carbon source ” conversion, wetland greenhouse gas emissions exacerbated the greenhouse effect; global warming, sea level rise and precipitation changes in wetlands Distribution and function have a significant impact. It is pointed out that proper control of wetland carbon cycle flux is the key to wetland conservation.