农田生态系统碳足迹特征及低碳发展探讨——以重庆酉阳县种植业为例  

Analysis on Carbon Footprint of Cropland Ecosystem and Low-Carbon Development——Case Study of Planting of Youyang County,Chongqing

作　　者：唐廉 谢世友[1,2] 

机构地区：[1]西南大学地理科学学院,重庆400715 [2]西南大学三峡库区生态环境教育部重点实验室,重庆400715

出　　处：《西南大学学报（自然科学版）》2016年第12期76-82,共7页Journal of Southwest University(Natural Science Edition)

基　　金：国家科技支撑计划课题(2011BAC09B01;2006BAC01A16);重庆市自然科学基金重点项目(CSTC2009BA0002)

摘　　要：利用2004年-2014年酉阳县种植业生产投入、产出等数据,采用碳足迹模型方法,选定主要要素的排放系数和碳吸收率,分析农作物种植中碳吸收、排放的情况.结果表明:1酉阳县种植业的碳生态承载力未超负荷,固碳能力稳步上升,年平均增长率2.9%.2酉阳县种植业的固碳能力和单位碳足迹产值效益提升主要得益于作物种植结构调整,说明发展低碳农业符合社会经济发展的要求.3秸秆焚烧带来巨大碳排量以及不断增加的化学物质消耗,加剧了农业面源污染风险.aThe about Planting paper ana in Youyang ze thedistribution and mainly influential factors of small-scale Carbon footprint County, Chongqing, to provide a theoretical support and scientific basis for the development of Low-Carbon agriculture. Based on the data of input and output of Planting, we analyzed the statement of carbon emission and absorption of crops by taking the model of Carbon footprint evalua- tion and selecting main factors for carbon emission and carbon absorption rates. The results of the study showed that： （1） the ability of Carbon absorption of Planting in Youyang is becoming more better than be- fore, by increasing with a yearly average growth rate of 2.9 %, and there is much surplus in the ecological in Youyang cropland. （2） the main factor for promoting the ability of Carbon absorption and the of per unit carbon footprint is to adjust planting structure, it showed that developing low-carbon re meets the demands of Economy process. （3） Straw incineration and still increasing chemical will aggravate agriculture nonpoint pollution.

关 键 词：碳足迹 碳排放 种植业 低碳发展 酉阳县 

分 类 号：X71[环境科学与工程—环境工程] S181[农业科学—农业基础科学]