In the 21st century,the agricultural energy-saving and emission-reduction is gaining global attention.Taking Dezhou as a case,we use different calculation models of energy carbon emissions to evaluate the status of carbon sink and carbon source from 2003 to 2008.The results are as follows.(1)The current carbon emission capacity of agriculture in Dezhou is 7.29TgCO2eq·a-1,including the agricultural energy consumption carbon emissions 2.81TgCO2eq·a-1,contribution of soil respiration 2.12 TgCO2eq·a-1,chemical fertilizers 0.93 TgCO2eq·a-1,and the emissions caused by keeping livestock 1.43TgCO2eq·a-1.(2) The present status of agricultural carbon sinks capacity is 9.24 TgCO2eq·a-1,including the carbon emissions caused by land use change 4.73 TgCO2eq·a-1,and the final carbon sequestration capacity through the application of organic manure and implementing straw returning 4.51TgCO2eq·a-1.(3) The current capacity of carbon sink is more than emissions,which suggests that it will be easy to develop low-carbon agriculture in Dezhou in the near future.From two aspects of reducing source and increasing sink capacity,we build the future low-carbon agricultural development model of Dezhou and propose some measures,such as adjusting agricultural industrial structure and improving land use,implementing conservation tillage,advocating the model of stereoscopic plantation,and developing circular agriculture with planting and breeding.
王帅, 张晶, 刘富刚*. 德州市低碳农业发展潜力分析及对策[J]. , 2012, 31(1): 69-74.
WANG Shuai, ZHANG Jing, LIU Fu-gang. Analysis on development potential of low-carbon agriculture in Dezhou and countermeasures. , 2012, 31(1): 69-74.
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