Combining water-saving and drought-resistant rice with plastic film mulching mitigates CH4 emissions with higher net economic benefits
文献类型： 外文期刊
作者： Zhang, Guangbin 1 ; Yang, Yuting 1 ; Zhu, Xiaoli 1 ; Shen, Wanyu 1 ; Zhu, Zhenke 5 ; Ge, Tida 5 ; Xia, Longlong 1 ; Ma, Jing 1 ; Lv, Shihua 3 ; Xu, Hua 1 ;
作者机构： 1.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Sichuan Acad Agr Sci, Inst Agr Resources & Environm, Chengdu 610066, Peoples R China
4.Nantong Univ, Sch Geog Sci, Nantong 226019, Peoples R China
5.Ningbo Univ, Inst Plant Virol, State Key Lab Managing Biot & Chem Threats Qual &, Ningbo 315211, Peoples R China
关键词： Paddy fields; Greenhouse gas emissions; CH 4 production; Grain yield; Water-saving and drought-resistant rice; GWP costs
期刊名称：RESOURCES CONSERVATION AND RECYCLING （ 影响因子：13.2； 五年影响因子：13.4 ）
ISSN： 0921-3449
年卷期： 2024 年 202 卷
页码：
收录情况： SCI
摘要： Plastic film mulching (PM) and water-saving and drought-resistant rice (WDR) are believed to increase crop yields and decrease CH4 emissions, respectively. Here, a comprehensive estimation is prepared on how the combination of PM and WDR impacts rice yields, CH4 and N2O emissions, global warming potential (GWP), greenhouse gas emission intensity (GHGI), and net economic ecosystem benefits (NEEB). Shifting continuous flooding (CF) into traditional rainfed (TF) and PM decreased CH4 emissions (35-92 %), GWP (33-91 %), and GHGI (31-88 %). Moreover, PM considerably reduced input costs and GWP costs relative to CF whereas increasing grain yields and yield gains relative to TF, thus promoting NEEB by around 3500 and 6000 CNY ha-1, respectively. Combining PM with WDR further enhanced NEEB by 935 CNY ha-1. The findings indicate that PM with the combination of WDR would be a promising strategy for lower greenhouse gas emissions and higher grain yields and economic benefits in rice agriculture.
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