Arid
DOI10.1016/j.agee.2023.108344
High efficiency and low greenhouse gas emissions intensity of maize in drip irrigation under mulch system
Wang, Chunyu; Li, Sien; Wu, Mousong; Wang, Xuhui; Wang, Shangjin; Guo, Zhenyu; Huang, Siyu; Yang, Hanbo; Gao, Liang
通讯作者Li, S
来源期刊AGRICULTURE ECOSYSTEMS & ENVIRONMENT
ISSN0167-8809
EISSN1873-2305
出版年2023
卷号346
英文摘要It is the goal of agricultural development to achieve the comprehensive benefits of high yield, high water and nitrogen efficiency but low environmental damage. However, the comprehensive benefits of greenhouse gas (GHG) emissions, grain yield, water and fertilizer efficiency in fertilized fields with different film mulching irrigation remain unclear. Therefore, we conducted typical maize field observation experiments based on drip irrigation under mulch (DM) and border irrigation under mulch (BM) for three years to quantify GHG emissions and their influencing factors, and analyzed maize yield, irrigation water use efficiency (IWUE), partial factor productivity of applied nitrogen (PFPN) and greenhouse gas emission intensity (GHGI). In our experiment, N2O emissions were lower by 32.46%, CH4 absorption was higher by 23.49%, and CO2 emissions were lower by 4.53% under DM than under BM. The roles of different environmental factors in controlling GHG fluxes were different under two treatments. The relative importance of soil NO3--N content to N2O and CH4 fluxes under DM was the greatest, and the values were 0.61 and 0.47, respectively. The soil NH4+-N content had the greatest relative importance to CO2 flux under DM (0.43), CH4 flux under BM (0.72), and CO2 flux under BM (0.52). In addition, the maize yield, IWUE and PFPN under DM were 17.85%, 17.90% and 71.84% higher than those under BM, while the global warming potential (GWP) and GHGI under DM were 6.65% and 20.79% lower than those under BM, respectively. Our research provides a more comprehensive understanding of typical farmland man-agement practices in arid areas and has important implications for agricultural development.
英文关键词Irrigation under mulch Yield Greenhouse gas emissions Global warming potential Water and nitrogen efficiency Greenhouse gas emission intensity
类型Article
语种英语
收录类别SCI-E
WOS记录号WOS:001033447400001
WOS关键词WATER-USE EFFICIENCY ; NITROGEN-FERTILIZATION ; N2O EMISSIONS ; METHANE UPTAKE ; SAVE WATER ; SOIL ; RICE ; CROP ; MANAGEMENT ; FIELD
WOS类目Agriculture, Multidisciplinary ; Ecology ; Environmental Sciences
WOS研究方向Agriculture ; Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/395112
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GB/T 7714
Wang, Chunyu,Li, Sien,Wu, Mousong,et al. High efficiency and low greenhouse gas emissions intensity of maize in drip irrigation under mulch system[J],2023,346.
APA Wang, Chunyu.,Li, Sien.,Wu, Mousong.,Wang, Xuhui.,Wang, Shangjin.,...&Gao, Liang.(2023).High efficiency and low greenhouse gas emissions intensity of maize in drip irrigation under mulch system.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,346.
MLA Wang, Chunyu,et al."High efficiency and low greenhouse gas emissions intensity of maize in drip irrigation under mulch system".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 346(2023).
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