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| 河南省农田生态系统碳源/汇研究 | |
| 引用本文： | 赵荣钦,刘英,丁明磊,焦士兴.河南省农田生态系统碳源/汇研究[J].河南农业科学,2010(7). |
| 作者姓名： | 赵荣钦 刘英 丁明磊 焦士兴 |
| 作者单位： | 1. 华北水利水电学院,资源与环境学院,河南,郑州,450011 2. 郑州航空工业管理学院,土木建筑工程学院,河南,郑州,450015 3. 安阳师范学院,资源环境与旅游学院,河南,安阳,455002 |
| 基金项目： | 华北水利水电学院青年科研基金，河南省社科联调研课题，河南省教育厅自然科学资助研究项目 |
| 摘 要： | 采用1992-2007年河南省各地市主要农作物产量、耕地面积及农业投入等数据,对农田生态系统碳源/汇进行了测算,分析了碳源/汇及碳汇强度的时空变化特征,并提出了相应的碳增汇对策和建议。结果表明:1992-2007年,河南省农田生态系统碳吸收、碳排放及其强度均呈明显增加的趋势,碳吸收明显大于碳排放,河南省农田生态系统碳汇功能不断增强;化肥施用带来的间接碳排放成为主要的碳排放源;1992年以来,农田生态系统碳汇量呈明显增加的趋势,区域单位面积产量越大,碳汇强度也越高;河南省农田生态系统碳汇强度自东北到西南逐渐降低,平原地区明显大于山区。 |
| 关 键 词： | 农田生态系统 碳吸收 碳排放 碳汇 碳汇强度 |
Research on Carbon Source and Sink of Farmland Ecosystem in Henan Province |
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| ZHAO Rong-qin,LIU Ying,DING Ming-lei,JIAO Shi-xing.Research on Carbon Source and Sink of Farmland Ecosystem in Henan Province[J].Journal of Henan Agricultural Sciences,2010(7). | |
| Authors: | ZHAO Rong-qin LIU Ying DING Ming-lei JIAO Shi-xing |
| Abstract: | Using data of crop yield,cropland area and agricultural inputs of Henan province,we calculated the carbon source and sink of farmland ecosystem,analyzed the spatial-temporal change of carbon source and sink and carbon sink intensity,and put forward several strategies and advices to sequester carbon in farmland ecosystem.The conclusions are as following: Carbon absorption,carbon emission and their intensity of farmland ecosystem in Henan province all showed a rising trend from 1992 to 2007.Carbon absorption is much more than carbon emission,which means the carbon sink function of farmland ecosystem in Henan province are increasingly strengthened.Of the three major carbon emission sources,the carbon emitted from fertilizer using has been the most important carbon emission source.Carbon sink of farmland ecosystem in Henan province showed a rising trend from 1992 to 2007.Generally,the more per unit area crop yield archiving,the higher carbon sink intensity will produce.Carbon sink intensity of farmland ecosystem declined from north-east to south-west of henan province,carbon sink intensity in plain area is obviously high than that in mountain regions.Adopting reasonable strategies to adding carbon in farmland ecosystem wiil be an important way to promote the carbon sink function. |
| Keywords: | Farmland ecosystem Carbon absorption Carbon emission Carbon sink Carbon sink intensity |
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