| 基于低碳经济的山东省德州市农田生态系统碳汇估算 |
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| 引用本文： | 祁兴芬.基于低碳经济的山东省德州市农田生态系统碳汇估算[J].水土保持通报,2013,33(1):157-161. |
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| 作者姓名： | 祁兴芬 |
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| 作者单位： | 德州学院地理系,山东德州,253023 |
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| 基金项目： | 山东省科学技术发展计划研究项目“自然资源胁迫下的山东省节约型社会发展模式研究”(2009rkb578);德州市社会科学规划项目“基于新农村建设的德州市农村生态经济发展模式及对策研究”(10YD17) |
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| 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6.35×107t,碳排放总量为4.53×106 t,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.
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| 关 键 词： | 农田生态系统 碳吸收 碳排放 碳汇 |
| 收稿时间： | 2012/10/12 0:00:00 |
| 修稿时间： | 2012/11/17 0:00:00 |
Estimation of Carbon Sink in Farmland Ecosystem of Dezhou City in Shandong Province Based on Low-carbon Economy |
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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 Soil and Water Conservation,2013,33(1):157-161. |
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| Authors: | QI Xing-fen |
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| Institution: | QI Xing-fen(Department of Geography,Dezhou University,Dezhou,Shandong 253023,China) |
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| 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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| Keywords: | farmland ecosystem carbon absorption carbon emission carbon sink |
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