鲁春霞, 谢高地, 肖玉, 于格. 我国农田生态系统碳蓄积及其变化特征研究[J]. 中国生态农业学报(中英文), 2005, 13(3): 35-37.
引用本文: 鲁春霞, 谢高地, 肖玉, 于格. 我国农田生态系统碳蓄积及其变化特征研究[J]. 中国生态农业学报(中英文), 2005, 13(3): 35-37.
LU Chun-Xia, XIE Gao-Di, XIAO Yu, YU Ge. Carbon fixation by farmland ecosystems in China and their spatial and temporal characteristics[J]. Chinese Journal of Eco-Agriculture, 2005, 13(3): 35-37.
Citation: LU Chun-Xia, XIE Gao-Di, XIAO Yu, YU Ge. Carbon fixation by farmland ecosystems in China and their spatial and temporal characteristics[J]. Chinese Journal of Eco-Agriculture, 2005, 13(3): 35-37.

我国农田生态系统碳蓄积及其变化特征研究

Carbon fixation by farmland ecosystems in China and their spatial and temporal characteristics

  • 摘要: 对我国近20年来农田生态系统C蓄积的时空变化特征进行估算分析结果表明,我国农田生态系统近20年来c蓄积总量持续增大,主要是由于单位面积C密度持续增大。农田C密度高值区主要分布在我国东部地区且多>3t/hm2 ,低值区主要分布在我国北方农牧交错带地区且普遍2。而科学管理作物残余物是增强农田生态系统C蓄积能力的关键。

     

    Abstract: The amount of carbon fixation and its spatial and temporal characteristics by farmland ecosystem are estimated and analyzed .The results show that the total quantities of carbo n fixation increases gradually in the past two decades be-cause the carbon density per hectare increases.The East China belongs tO the area of the high value(over 3t/hm2 )and the agropastural ecotone in North China has the low value of carbon density which is less than 1t/hm2 .Thus,the cropresidue management is the key issue for enhancing carbo n sequestration.

     

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