赵永存,徐胜祥,王美艳,史学正.中国农田土壤固碳潜力与速率:认识、挑战与研究建议[J].中国科学院院刊,2018,33(2):191-197.

中国农田土壤固碳潜力与速率:认识、挑战与研究建议

Carbon Sequestration Potential in Chinese Cropland Soils: Review, Challenge, and Research Suggestions

赵永存
中国科学院南京土壤研究所 土壤与农业可持续发展国家重点实验室 南京 210008
ZHAO Yongcun
State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
徐胜祥
中国科学院南京土壤研究所 土壤与农业可持续发展国家重点实验室 南京 210008
XU Shengxiang
State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
王美艳
中国科学院南京土壤研究所 土壤与农业可持续发展国家重点实验室 南京 210008
WANG Meiyan
State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
史学正
中国科学院南京土壤研究所 土壤与农业可持续发展国家重点实验室 南京 210008
SHI Xuezheng
State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China

         中国农田;土壤有机碳;变化速率;固碳潜力

        Chinese cropland;soil organic carbon (SOC);rate of change;carbon sequestration potential

        土壤有机碳作为土壤肥力形成的基础，不但影响土壤质量、功能和粮食产量，而且在全球气候变化中扮演重要角色。在我国土壤资源同时面临保障粮食安全、发挥生态系统服务功能和应对气候变化等多重挑战的背景下，准确把握中国农田土壤固碳潜力及速率，对于实现土壤资源合理利用和农业可持续发展具有重要意义。文章首先介绍了对中国农田土壤有机碳变化速率和土壤固碳潜力的基本认识以及研究中面临的挑战，而后从基础研究、土壤信息平台、方法体系及研究成果与国家农业管理决策支撑方面提出了研究建议。

        Soil organic carbon (SOC) as the core of soil fertility affects soil quality, function, and crop production, and plays a key role in global climate change. Soil resources in China are facing multiple challenges such as maintainment and improvement of food security and ecosystem functioning, and mitigation of climate change. Consequently, information and knowledge on changes in SOC in Chinese cropland are extremely important for the sustainable utilization of the soil resources in the country. This paper first reviews the common views on SOC sequestration rate and potential in Chinese cropland at the national scale, and then points out the possible challenges that are facing for the research communities. And finally, proposes research suggestions from the aspects of soil organic matter turnover process, soil information service platform construction, and the connections between SOC sequestration research and agricultural management decision support.