资源科学 ›› 2016, Vol. 38 ›› Issue (6): 1039-1053.doi: 10.18402/resci.2016.06.04

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基于碳循环的黄淮海平原耕地固碳功能研究

陈丽1,2(), 郝晋珉1,2(), 王峰3, 尹钰莹1,2, 高阳1,2, 段文凯1,2, 杨君1,2   

  1. 1. 中国农业大学资源与环境学院,北京 100193
    2. 国土资源部农用地质量与监控重点实验室,北京 100193
    3. 泰安市国土资源局,泰安 271000
  • 收稿日期:2015-10-27 修回日期:2016-02-25 发布日期:2016-06-18
  • 作者简介:

    作者简介:陈丽,女,山东聊城人,博士生,研究方向为土地信息技术、土地利用规划。E-mail:lichenbj@163.com

  • 基金资助:
    科技部国家科技支撑计划项目(2015BAD06B01)

Carbon sequestration function of cultivated land use system based on the carbon cycle for the Huang-Huai-Hai Plain

CHEN Li1,2(), HAO Jinmin1,2(), WANG Feng3, YIN Yuying1,2, GAO Yang1,2, DUAN Wenkai1,2, YANG Jun1,2   

  1. 1. College of Resources Environmental Sciences,China Agricultural University,Beijing 100193,China
    2. Key Laboratory for Agricultural Land Quality Monitoring and Control,The Ministry of Land and Resources,Beijing 100193,China
    3. Bureau of Land and Resources of Taian,Taian 271000,China
  • Received:2015-10-27 Revised:2016-02-25 Published:2016-06-18

摘要:

耕地固碳作为陆地主要生态系统固碳的有效补充,越来越引起学术界的广泛关注。但是,目前耕地固碳功能研究多从生态学角度研究耕地植被、土壤等碳吸收、碳释放以及将耕地看作纯自然生态系统研究系统碳平衡,缺乏从土地利用和管理学科角度对耕地固碳功能进行系统阐述和研究。黄淮海平原作为中国重要的粮食主产区,区内耕地面积大,耕地利用模式典型。本文以黄淮海平原为研究区,从耕地利用系统的角度出发,基于整个系统碳循环过程,构建了黄淮海平原耕地利用系统固碳功能研究基本框架,并基于生态学角度陆地生态系统固碳相关研究成果,从耕地固碳能力、固碳效率和固碳优势度三个方面对黄淮海平原耕地固碳功能进行了评价。研究结果表明:耕地利用过程中的耕地固碳功能认识,应从自然固碳能力、理想固碳能力、现实固碳能力和区域固碳能力4个层次展开,黄淮海平原耕地固碳能力在各个层级上均表现出正向性;此外,黄淮海平原耕地平均固碳效率为2.5,固碳优势度达到0.85,黄淮海平原耕地固碳功能在本区域具有不可忽视以及区域内其他生态系统不可替代的重要作用,在本区域应该作为耕地的重要功能进行显化。本研究不仅可为耕地生态功能理论研究提供新思考点,也为提升耕地的生态效益、缓解气候变化以及耕地生态补偿方面研究提供了参考和支撑。

关键词: 耕地, 固碳功能, 碳循环, 黄淮海平原

Abstract:

Cultivated land carbon sequestration as an effective supplement to the terrestrial ecosystem is recognized; however,research on the carbon sequestration function of cultivated land has been conducted from the perspective of ecology. For example, carbon uptake and carbon release of vegetation and arable soil and carbon balance in agro-ecosystems is often a focus and there is a lack of research into the carbon sequestration of cultivated land from the viewpoint of land science. Here we built a basic research framework for the carbon sequestration function of cultivated land use for the Huang-Huai-Hai Plain based on the carbon cycle process of cultivated land use system theory. Then the carbon sequestration function was evaluated from three aspects of carbon sequestration ability,carbon sequestration efficiency and carbon sequestration dominance. The results suggest that the carbon sequestration function of cultivated land use can be known from four aspects:natural carbon sequestration ability, ideal carbon sequestration ability,practical carbon sequestration ability and regional carbon sequestration ability. The carbon sequestration of cultivated land use systems of the Huang-Huai-Hai Plain is a carbon sink. The carbon sequestration efficiency and carbon sequestration dominance degree are 2.5 and 0.85 respectively. The carbon sequestration function of cultivated land use system plays an irreplaceable role on the Huang-Huai-Hai Plain,which should be a prominent function in this area. This study provides a new way of thinking about ecological function theory research for cultivated land,and support for promoting the ecological benefits of cultivated land,mitigating climate warming,and administering cultivated land ecology interregional compensation.

Key words: cultivated land use system, carbon sequestration function of cultivated land, carbon cycle, Huang-Huai-Hai Plain