山东农业科学Issue(5)：34-37,4.
保护性耕作对温室气体排放和经济成本的影响--以山东滕州和兖州为例
Influences of Conservation Tillage on Greenhouse Gas Emission and Economic Cost-A Case Study of Tengzhou and Yanzhou in Shandong Province
摘要
Abstract
Straw returning and minimum and no-till are fundamental practices of conservation tillage. In this study,the implement status of conservation tillage in Tengzhou and Yanzhou were investigated,and the influences of conservation tillage on greenhouse gas (GHG)emission and economic cost were estimated.The results showed that straw returning and tillage method were closely related to GHG emission and economic cost.In traditional tillage,with the increase of straw returning amount,the tillage times and strength increased. The GHG emission was 318 kgC/(hm2·a)under all corn straw burned combined with traditional tillage.How-ever,under all straw returning with no -till,the amount of carbon absorption and sequestration reached to 1 459 kgC/(hm2·a),and the cost was 1 050 CNY/(hm2·a),declined by 32% than that of all straw retur-ning with traditional tillage.In conclusion,all straw returning with no-till was a more economic and environ-ment-friendly conservation tillage type.关键词
秸秆还田/免耕/固碳/净排放/成本Key words
Straw returning/No-till/Carbon sequestration/Net emission/Cost分类
农业科技引用本文复制引用
张国,逯非,王效科..保护性耕作对温室气体排放和经济成本的影响--以山东滕州和兖州为例[J].山东农业科学,2014,(5):34-37,4.基金项目
国家自然科学基金-青年基金项目面向温室气体减排的中国秸秆利用优化研究（71003092）；中国科学院重大专项专题温室气体综合管理技术与碳汇功能区划（XDA05050602）；中国科学院战略性先导科技专项子课题重大生态工程固碳认证方法研究 （）
