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应用生态学报 ›› 2017, Vol. 28 ›› Issue (9): 3050-3060.doi: 10.13287/j.1001-9332.201709.015

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农田生态系统碳足迹时空变化——以河南省为例

张鹏岩1,2, 何坚坚1, 庞博1, 逯承鹏3, 秦明周1*, 卢谦成1   

  1. 1河南大学环境与规划学院,河南开封 475004
    2中原经济区“三化”协调发展河南省协同创新中心,郑州 410001
    3中国科学院沈阳应用生态研究所,沈阳 110016
  • 收稿日期:2016-12-02 出版日期:2017-09-18 发布日期:2017-09-18
  • 通讯作者: * E-mail: mzqin@henu.edu.cn
  • 作者简介:张鹏岩,男,1983年生,博士,副教授.主要从事资源利用与环境保护研究. E-mail: pengyanzh@126.com
  • 基金资助:

    本文由国家自然科学基金项目(41601175)、河南省哲学社会科学规划项目(2014CJJ016)、河南省基础与前沿技术研究计划项目(152300410067)和河南省高校科技创新团队支持计划项目(16IRTSTHN012)资助

Temporal and spatial differences in carbon footprint in farmland ecosystem: A case study of Henan Province, China.

ZHANG Peng-yan1,2, HE Jian-jian1, PANG Bo1, LU Cheng-peng3, QIN Ming-zhou1*, LU Qian-cheng1   

  1. 1College of Environment and Planning, Henan University, Kaifeng 475004, Henan, China;
    2Collaborative Innovation Center of Three-aspect Coordination of Central Plain Economic Region, Zhengzhou 410001, China;
    3 Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China.
  • Received:2016-12-02 Online:2017-09-18 Published:2017-09-18
  • Contact: * E-mail: mzqin@henu.edu.cn
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (41601175), the Philosophy and Social Sciences Planning Project of Henan Province (2014CJJ016), the Foundation and Advanced Technology Research Plan of Henan Province (152300410067) and the University Science and Technology Innovation Team Support Plan of Henan Province (16IRTSTHN012).

摘要: 农田生态系统是陆地生态系统的重要组成部分,起着碳源和碳汇的双重作用,对维持整个生态系统碳平衡具有重要意义.本文基于ArcGIS 10.1、SPSS 20.0、Sigmaplot 12.5等分析平台,以农田生态系统为研究对象,构建农田生态系统碳足迹模型,分析2005—2014年河南省农田生态系统碳排放、碳吸收和碳足迹及三者之间的关系.结果表明: 2005—2014年,研究区碳排放年平均增长率为2.7%,其中因化肥施用引起的碳排放量占总碳排放量的比例最高,占66.2%,且化肥的使用强度为890.38 kg·hm-2,远高于发达国家公认的安全警戒线225 kg·hm-2.河南省农田生态系统的碳总储量整体呈逐年上升趋势,其中,小麦的碳吸收比例最高,占总吸收量的60%,水稻的碳吸收增速最快,为7.9%.河南省农田生态系统存在碳生态盈余,且农田生态系统碳足迹总体呈现不断增加趋势,农田生态系统碳足迹占同期生产性土地面积(耕地)的平均比例为5.7%.研究区碳排放、碳吸收、碳足迹的空间变化较为一致,均呈现东南多、西北少的空间分布规律,且地区差异及变化幅度差异较大是三者的最主要外部特征.

关键词: 碳足迹, 河南省, 农田生态系统, 空间分布

Abstract: Farmland ecosystem is an important part of terrestrial ecosystem, which plays a dual role of carbon source and carbon sink. It has important significance for the maintenance of carbon ba-lance of the whole ecosystem. In this paper, the farmland ecosystem was taken as the research object, ArcGIS 10.1, SPSS 20, Sigmaplot 12.5 were adopted to construct farmland ecosystem carbon footprint model, and to calculate and analyze the relationships among carbon emissions, carbon absorption and carbon footprint in farmland ecosystem in Henan Province. The results showed that, from 2005 to 2014, the average annual growth rate of carbon emission was 2.7% in the researcharea. The carbon emission caused by the fertilizer application in the area accounted for 66.2% of the total carbon emission, which was the highest among all sources. The application intensity of fertilizer was 890.38 kg·hm-2, which was far higher than the recognized security warning line in developed countries (225 kg·hm-2). Overall, the total carbon storage showed an upward trend in farmland ecosystem in Henan Province. Wheat had the highest proportion of carbon uptake, accounting for 60% of the total carbon absorption, and the rice had the fastest growth rate of carbon absorption at 7.9%. The farmland ecosystem in Henan Province had a carbon surplus and farmland ecosystem carbon footprint showed an overall increasing trend. Farmland ecosystem carbon footprint accounted for 5.7% of productive land area over the same period. Carbon emission, carbon sequestration and carbon footprint had similar spatial distributions, which appeared more in the southeast and less in the northwest, and large regional differences and variation range were their most important external features.

Key words: Henan Province, carbon footprint, spatial distribution, farmland ecosystem