Estimation of Carbon Sink in Farmland Ecosystem of Dezhou City in Shandong Province Based on Low-carbon Economy

QI Xing-fen

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Estimation of Carbon Sink in Farmland Ecosystem of Dezhou City in Shandong Province Based on Low-carbon Economy

- Estimation of Carbon Sink in Farmland Ecosystem of Dezhou City in Shandong Province Based on Low-carbon Economy
- Bulletin of Soiland Water Conservation Vol. 32, Issue 1, Pages: 157-161(2013)
- 作者机构：
  
  德州学院地理系,山东,德州,253023
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2013
- 稿件说明：
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QI Xing-fen. Estimation of Carbon Sink in Farmland Ecosystem of Dezhou City in Shandong Province Based on Low-carbon Economy[J]. Bulletin of Soiland Water Conservation, 2013, 32(1): 157-161.
DOI：

QI Xing-fen. Estimation of Carbon Sink in Farmland Ecosystem of Dezhou City in Shandong Province Based on Low-carbon Economy[J]. Bulletin of Soiland Water Conservation, 2013, 32(1): 157-161. DOI：

摘要

依据2001—2010年农作物产量、耕地面积及农业投入等数据

对山东省德州市农田生态系统的碳汇进行了估算

并分析了其变化情况。结果表明

德州市2001—2010年农田生态系统的碳吸收总量呈增加的趋势

且2004年以来增加的趋势较明显;小麦、玉米作为主要的粮食作物

碳吸收量明显高于其他农作物

棉花作为主要经济作物

吸收量不高;2001—2010年

由于德州市发展生态、高效、优质农作物

碳排放呈现先增后减的变化;不同县市由于农业发展方向和发展特色的差异

具有不同的碳排放;在这3种途径的碳排放过程中

化肥施用过程中碳排放所占的比例较大

且呈减少的趋势;2001—2010年德州市碳吸收量为6.35×10

碳排放总量为4.53×10

碳吸收量远远大于碳排放量

说明德州市农田生态系统具有较强的碳汇功能。

Abstract

Carbon absorption and emission in the farmland ecosystem of Dezhou City in Shandong Provincewere estimated and their changes were analyzed based on the statistical data of crop yield

cultivated land areaand agricultural input from 2001to 2010.The total carbon absorption in the farmland ecosystem showed anincreasing trend during 2001-2010and the increasing trend was obvious after 2004.The carbon absorptionof wheat and corn

as the main grain crops

was significantly higher than other crops

and the carbon absorption of cotton

as the main cash crop

was not high.The carbon emission presented the trend from increasingto decreasing due to eco-efficient and high-quality crop development.Different counties had different carbonemissions because of different agricultural development directions and characteristics.The carbon emission ofchemical fertilizer contributes a higher percentage in three ways of carbon emissions

which showed a decreasing trend.The carbon absorption was far higher than the carbon emission in Dezhou City from 2001to2010.Farmland ecosystem of Dezhou City had an evident carbon sink function.

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