Influences of Conservation Tillage on Greenhouse Gas Emission and Economic Cost-A Case Study of Tengzhou and Yanzhou in Shandong Province
Zhang Guo
Lu Fei
Wang Xiaoke
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.
Keywords：Straw returningNo-tillCarbon sequestrationNet emissionCost
Publication Date：2014-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：4( 34-37 )