地理科学 ›› 2018, Vol. 38 ›› Issue (4): 580-589.doi: 10.13249/j.cnki.sgs.2018.04.012

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滨海滩涂土壤有机碳演变驱动因子框架

李建国1(), 袁冯伟1, 赵冬萍1, 张忠启1, 濮励杰2,3(), 刘丽丽1   

  1. 1.江苏师范大学地理测绘与城乡规划学院,江苏 徐州 221116
    2.南京大学地理与海洋科学学院,江苏 南京 210023
    3.国土资源部海岸带开发与保护重点实验室,江苏 南京 210023
  • 收稿日期:2017-06-02 修回日期:2017-09-13 出版日期:2018-04-20 发布日期:2018-04-20
  • 作者简介:

    作者简介:李建国(1986-),男,江苏泗阳人,博士,讲师,主要研究滩涂开发及其生态环境效应。E-mail:lijianguo531@126.com

  • 基金资助:
    国家自然科学基金项目(41701371,41230751)、教育部人文社会科学研究一般项目(17YJCZH085)、江苏省高校自然科学研究项目(17KJB170006)、江苏师范大学高校博士科研启动基金项目(15XLR017)、江苏省高等学校大学生创新创业训练计划项目(201610320043Z, 201710320059Z)资助

Driving Factors Framework of Soil Organic Carbon Evolution in Coastal Wetlands

Jianguo Li1(), Fengwei Yuan1, Dongping Zhao1, Zhongqi Zhang1, Lijie Pu2,3(), Lili Liu1   

  1. 1.School of Geography, Geomatics, and Planning, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
    2. School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing 210023, Jiangsu, China
    3. The Key Laboratory of the Coastal Zone Exploitation and Protection, Ministry of Land and Resources, Nanjing 210023, Jiangsu, China
  • Received:2017-06-02 Revised:2017-09-13 Online:2018-04-20 Published:2018-04-20
  • Supported by:
    [National Natural Science Foundation of China (41701371, 41230751), the Ministry of Education of Humanities and Social Science Project (17YJCZH085), University Science Research Project of Jiangsu Province (17KJB170006), Jiangsu Normal University Foundation (15XLR017), Jiangsu Students’ Innovation and Entrepreneurship Training Program (201610320043Z, 201710320059Z).]

摘要:

通过归纳、总结前人大量的研究成果,从土壤有机碳演变的尺度约束框架、滩涂土壤有机碳的核心控制因子以及演变的驱动因素3个方面进行总结。结果表明:①目前形成的监测技术约束下的碳库研究体系,其研究的结果忽视了机理性认识的未来需要,这对于应对未来气候变化条件下的滩涂湿地碳库变化风险稍显不足; ② 滩涂土壤有机碳演变的核心控制因子有泥沙、地貌与埋藏速率、植被与农业活动。滩涂围垦后的农业活动类型与方式是滩涂开发后影响土壤有机碳演变的核心要素,远远高于自然滩涂中的自然主导因子; ③ 不同因素在不同时空尺度上会对滩涂有机碳演变起到重要影响,其中,土地利用/覆被对于有机碳的影响机制是需要重点关注的核心命题; ④ 小尺度、长时间尺度有机碳循环机制的研究需要加强,同时,综合考量要素的时空尺度特性及其技术手段的提升,更加注重过程研究对于指导未来滩涂土壤有机碳研究更具有现实意义。

关键词: 滩涂, 土壤有机碳, 滨海滩涂湿地, 土壤有机碳库

Abstract:

In this study, we collected a large number of previous researches, summarized the scale framework of soil organic carbon evolution, the core influencing factors and the driving mechanism of coastal soil organic carbon evolution. The results as shown: 1) At present, research system of soil organic carbon induced by monitoring technologies ignores the social needs in the future, which is inadequate for revealing coastal soil organic carbon change under future climate change; 2) The main influencing factors of soil organic carbon evolution are sediment, topography and burial rate, vegetation and agricultural activities. The types of agricultural activities after reclamation are the core factors influencing the evolution of soil organic carbon, which is much higher than that of natural salt marshes. 3) Different factors play an important role in the evolution of organic carbon at different spatio-temporal scales, in which land use change/cover is the core of soil organic carbon evolution. 4) The research on the organic carbon cycling mechanism at small spatial and long time scale is needed to strengthened. In addition, spatial-temporal scale characteristics of the factors and monitoring technology upgrading are integrated to conduct future studies are of practical significance to guide the study of coastal soil organic carbon in future.

Key words: coastal areas, soil organic carbon, coastal wetlands, soil organic carbon pool

中图分类号: 

  • P748