盐度对滨海湿地土壤碳库组分及稳定性的影响  

Effects of Salinity on Characteristics and Stability of Soil Carbon Pool in Coastal Wetland

作　　者：王纯 刘兴土[1] 仝川[2,3] Wang Chun;Liu Xingtu;Tong Chuan(Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, Jilin, China;College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, Fujian, China;Key Labratory of Humid Subtropical Eco-geographical Process, Ministry of Education, Fujian Normal University, Fuzhou 350007, Fujian, China)

机构地区：[1]中国科学院东北地理与农业生态研究所湿地生态与环境重点实验室,吉林长春130102 [2]福建师范大学地理科学学院,福建福州350007 [3]福建师范大学亚热带湿地研究中心,福建福州350007

出　　处：《地理科学》2018年第5期800-807,共8页Scientia Geographica Sinica

基　　金：国家重点基础研究发展计划课题(2013CB430401);中国博士后科学基金(2017M611337)资助~~

摘　　要：从土壤有机碳含量和活性组分出发,分析了湿地土壤碳库组分对盐度变化的响应特征。同时分析了土壤有机碳3种稳定机制,评述了土壤碳稳定性与盐分中主要离子的博弈。并在基于研究滨海湿地碳固定与稳定的基础上,提出了土壤碳稳定与营养元素循环的相互作用机制研究、土壤碳稳定与微生物及酶学机制的关系研究、借助稳定同位素技术多要素多过程耦合研究等科学问题展望。以期为了解未来中国海平面上升背景下湿地碳截获潜力的可能演变趋势及其应对策略,为发展和完善中国湿地土壤碳循环理论奠定科学基础。Soil carbon sequestration and stability in coastal wetland are of great significance in maintaining primary productivity of wetland and mitigating global warming. Current studies about soil carbon stability mainly focused on the inland ecosystems while lack on the coastal wetland. Based on the content and active fractions of soil organic carbon, the responses of soil carbon fractions to varied salinity were analyzed. Meanwhile, three stabilization mechanisms of soil organic carbon were reviewed, and the game of soil carbon stability and main ions in salt was in depth explored. Furthermore, based on the study of carbon sequestration and stabilization of coastal wetland, three scientific issues have been suggested, including the interaction mechanism of soil carbon stabilization and nutrient cycling, and the relationship between soil carbon stability and microbial and enzymatic mechanisms, as well as the coupling research of multi-factor and multi-process, in order to understand the possible evolution trend of carbon sequestration, and for strategies making aiming at sustainable carbon sequestration in coastal wetland under the rising sea level, as well as to provide sound knowledge base for the development and improvement of carbon cycling theory in wetland soil of China.

关 键 词：盐度 土壤碳库 土壤活性组分 滨海湿地 

分 类 号：P95[天文地球—自然地理学]