
农业与技术 ›› 2025, Vol. 45 ›› Issue (19): 17-24.DOI: 10.19754/j.nyyjs.20251015004
• 农业科学 • 上一篇
臧彦超 郑恩楠
出版日期:2025-10-15
发布日期:2025-10-15
作者简介:臧彦超(2000-),男,硕士在读。研究方向:农业水利;通信作者郑恩楠(1990-),男,博士,副教投。研究方向:农业水
土资源高效利用的环境效应。
基金资助:Online:2025-10-15
Published:2025-10-15
摘要: 保护性耕作的应用已被证实是促进保护农田,并获得生态和经济效益的重要农业举措。然而,在以往研 究中,不同的保护性耕作措施对作物产量、水分利用效率(WUE)以及农田温室气体排放的影响存在差异。因 此,为了探求对于提高我国农作物产量、WUE以及减少温室气体排放的有效保护性耕作方式,研究选取免耕 (NT)、常规耕作加秸秆还田(TS)、免耕加秸秆还田(NTS)3种保护性耕作方式,以我国区域内小麦、玉米和 大豆3种农作物为研究对象,通过检索来自研究学者已发表的76篇文献中的739组数据分析3种保护性耕作方 式对小麦、玉米和大豆3种作物的产量、WUE及农田中N20气体的排放的影响进行Meta分析。结果表明,TS 和NTS处理下作物的产量和WUE都有较明显的提高。TS和NTS相对于常规耕作(T)分别增产8.7%和4.7%, TS和NTS相对于T作物WUE分别增加11.3%和8.9%,而NT对作物产量和WUE影响并不显著。但NT对于 N2O排放却有明显抑制作用,TS和NTS却没有显著影响。此外,在干旱地区(年降水量AP<400mm)NTS对作 物增产作用非常大,说明气候条件也是关键因素。因此,研究得出,TS和NTS是提高作物产量和WUE的更为有 效的耕作方式,在年降水量较少地区NTS效果更佳,NT则是能有效降低N,O气体排放的选择。
中图分类号:
. 保护性耕作对作物产量水分利用效率及温室气体排放的影响[J]. 农业与技术, 2025, 45(19): 17-24.
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