福建农业学报Issue(11)：1098-1103,6.
福建省农田生态系统碳源／汇时空变化及其影响因素分析
Spatial-tfmporal Variation and Impact Factor of Carbon Sourcf and Sink of Farmland Ecosystfm in Fujian
摘要
Abstract
Farmland ecosystem is an important carbon source and carbon pool.Estimating the carbon emission and absorption of a farmland ecosystem is significantly important in making strategies to reduce greenhouse gas emission.Based on the statistical data of crop yield,cropland areas and agricultural inputs in the period from 1991 to 2010,the amounts of carbon absorption and emission of farmland ecosystems in Fujian were calculated,and the spatial-temporal variations and impact factors of carbon absorption and emission were also analyzed.The results indicated that,the total amount of carbon absorption has a decreasing tendency,which reduced from 1 161.14×104 t in 1991 to 672.13 × 104 t in 2010.The total amount of carbon emission has an increasing tendency,which increased from 114.05×104 t in 1991 to 195.10×104 t in 2010.The amount of carbon sequestration has a decreasing tendency,which reduced from 1 047.09×104 t in 1991 to 477.03 ×104 t in 2010.The carbon absorption per unit area of arable land also showed a descending trend,however the carbon emission per unit area of arable land remained almost no changes.In 2010,the amounts of carbon absorption and carbon sequestration were both maximum in Nanping,and the amount of carbon emission was maximum in Zhangzhou.However,the minimum in the amounts of carbon absorption,carbon emission and carbon sequestration were all in Xiamen.The results in correlation analysis showed that,carbon absorption was significantly positive correlated with the yields of rice, wheat and sugarcane.Carbon emission was significantly positive correlated with the potassic fertilizer,compound fertilizer,pesticide,power and fuels consumption.The results will serve as a strong support for the development of low carbon agriculture of Fujian Province.关键词
农田生态系统/碳吸收/碳排放/碳汇Key words
farmland ecosystem/carbon absorption/carbon emission/carbon sequestration分类
农业科技引用本文复制引用
李艳春,王成己,叶菁,王义祥,黄毅斌..福建省农田生态系统碳源／汇时空变化及其影响因素分析[J].福建农业学报,2014,(11):1098-1103,6.基金项目
“十二五”国家科技支撑计划项目（2012BAD14B03-5）；福建省科技计划项目---省属公益类科研院所基本科研专项 （）
