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| 滨海滩涂土壤有机碳演变驱动因子框架 | |
| 引用本文： | 李建国,袁冯伟,赵冬萍,张忠启,濮励杰,刘丽丽.滨海滩涂土壤有机碳演变驱动因子框架[J].地理科学,2018,38(4):580-589. |
| 作者姓名： | 李建国 袁冯伟 赵冬萍 张忠启 濮励杰 刘丽丽 |
| 作者单位： | 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 |
| 基金项目： | 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 |
| 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 |
| 收稿时间： | 2017-06-02 |
| 修稿时间： | 2017-09-13 |
Driving Factors Framework of Soil Organic Carbon Evolution in Coastal Wetlands |
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| Jianguo Li,Fengwei Yuan,Dongping Zhao,Zhongqi Zhang,Lijie Pu,Lili Liu.Driving Factors Framework of Soil Organic Carbon Evolution in Coastal Wetlands[J].Scientia Geographica Sinica,2018,38(4):580-589. | |
| Authors: | Jianguo Li Fengwei Yuan Dongping Zhao Zhongqi Zhang Lijie Pu Lili Liu |
| Institution: | 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 |
| 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. |
| Keywords: | coastal areas soil organic carbon coastal wetlands soil organic carbon pool |
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