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Trade-offs between high yields and soil CO2 emissions in semi-humid maize cropland in northern China

文献类型：期刊论文

作者Li, Zhaoxin1,2,6; Zhang, Qiuying3; Qiao, Yunfeng1,2,6; Du, Kun1,2,6; Li, Zhao1,2,6; Tian, Chao1,2,6; Zhu, Nong1,2,6; Leng, Peifang1,2,6; Yue, Zewei1,2,6; Cheng, Hefa4
刊名SOIL & TILLAGE RESEARCH
出版日期2022-07-01
卷号221页码:11
关键词Soil CO2 emissions Agricultural practices Summer maize Crop yields North China Plain
ISSN号0167-1987
DOI10.1016/j.still.2022.105412
通讯作者Zhang, Qiuying(zhangqy@craes.org.cn) ; Li, Fadong(lifadong@igsnrr.ac.cn)
英文摘要Optimizing yields while reducing soil CO2 emissions in cropping systems has become the focus of agricultural study. To explore effective ways to achieve the balance, short-term field experiments (2018-2020) were conducted in North China Plain. Three replications of three-factor combinations of two tillage systems (i.e., notillage and conventional tillage), two straw management (i.e., no straw and straw mulch), and two nitrogen fertilization levels (i.e., medium nitrogen of 180 kg N ha-1 and high nitrogen of 210 kg N ha-1) were arranged in a randomized complete block design. It was discovered that soil CO2 emissions were mainly dominated by soil temperature. No-tillage decreased soil CO2 emissions by 7.3% than conventional tillage, straw mulch promoted soil CO2 emissions than no straw, and high fertilization increased CO2 emissions by 21.8% compared to medium fertilization. However, maize yields were not significantly affected by above treatments. The combinations of agricultural practices that achieved the highest maize yields were medium nitrogen in combination with straw mulch under no-tillage and conventional tillage. The combination of no-tillage, straw mulch, and medium nitrogen decreased soil CO2 emissions intensity by 11.5%. It was concluded that the combination of no-tillage, straw mulch amendment, and medium nitrogen achieved a balanced yields and soil CO2 emissions, which should be recommended for local farmers in North China Plain.
WOS关键词GREENHOUSE-GAS EMISSIONS ; ORGANIC-CARBON ; NITROGEN-FERTILIZATION ; REDUCED TILLAGE ; LOESS PLATEAU ; STRAW RETURN ; SHORT-TERM ; WATER ; CORN ; MANAGEMENT
资助项目National Natural Science Foundation of China[41771292] ; National Natural Science Foundation of China[42007155] ; National Natural Science Foundation of China[U1906219] ; National Natural Science Foundation of China[U2006212]
WOS研究方向Agriculture
语种英语
WOS记录号WOS:000796598500003
出版者ELSEVIER
资助机构National Natural Science Foundation of China
源URL[http://ir.igsnrr.ac.cn/handle/311030/178261]  
专题中国科学院地理科学与资源研究所
通讯作者Zhang, Qiuying; Li, Fadong
作者单位1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China
2.Minist Sci & Technol, Yucheng Shandong Agroecosyst Natl Observat & Res, Yucheng, Peoples R China
3.Chinese Res Inst Environm Sci, Beijing, Peoples R China
4.Peking Univ, Beijing, Peoples R China
5.Florida A&M Univ, Dept Civil & Environm Engn, Coll Engn, Florida State Univ, Tallahassee, FL USA
6.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, 11 Datun Rd, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714		 Li, Zhaoxin,Zhang, Qiuying,Qiao, Yunfeng,et al. Trade-offs between high yields and soil CO2 emissions in semi-humid maize cropland in northern China[J]. SOIL & TILLAGE RESEARCH,2022,221:11.
APA Li, Zhaoxin.,Zhang, Qiuying.,Qiao, Yunfeng.,Du, Kun.,Li, Zhao.,...&Li, Fadong.(2022).Trade-offs between high yields and soil CO2 emissions in semi-humid maize cropland in northern China.SOIL & TILLAGE RESEARCH,221,11.
MLA Li, Zhaoxin,et al."Trade-offs between high yields and soil CO2 emissions in semi-humid maize cropland in northern China".SOIL & TILLAGE RESEARCH 221(2022):11.

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来源：地理科学与资源研究所

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