Appropriately delayed flooding before rice transplanting increases net ecosystem economic benefit in the winter green manure-rice rotation system
In southern China, co-incorporating winter green manure and rice straw has proven to be a practical and economically viable strategy that enhances soil carbon (C) sequestration and agricultural productivity in rice paddies. However, the issue of how to control the greenhouse gas (GHG) emissions in p...
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2024-12-01
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| Series: | Resources, Environment and Sustainability |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666916124000264 |
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| author | Zhengbo Ma Rongyan Bu Guopeng Zhou Haoran Fu Jinxin Sun Ting Liang Cheng Cai Danna Chang Qingxu Ma Ji Wu David R. Chadwick Davey L. Jones Weidong Cao |
| author_facet | Zhengbo Ma Rongyan Bu Guopeng Zhou Haoran Fu Jinxin Sun Ting Liang Cheng Cai Danna Chang Qingxu Ma Ji Wu David R. Chadwick Davey L. Jones Weidong Cao |
| author_sort | Zhengbo Ma |
| collection | DOAJ |
| description | In southern China, co-incorporating winter green manure and rice straw has proven to be a practical and economically viable strategy that enhances soil carbon (C) sequestration and agricultural productivity in rice paddies. However, the issue of how to control the greenhouse gas (GHG) emissions in paddy fields owing to the incorporation of substantial organic matter remains a bottleneck. A 2-year field experiment was conducted, which included five treatments: conventional water management with no residue (CK) and with co-incorporation of green manure and rice straw (GM+Rs), delayed flooding by 5, 10, and 15 days after the co-incorporation of green manure and rice straw (GM+Rs-DW5, GM+Rs-DW10, and GM+Rs-DW15) before transplanting rice seedlings. The delayed flooding treatments reduced the 2-year average CH4 emissions by 40.9%–60.8% compared with GM+Rs. The delayed flooding inhibited the growth of methanogens and CH4 emissions, which was linked to a reduction of dissolved organic carbon (DOC) concentration in surface water. The lowest C footprint (4.05 t CO2-eq ha−1) as well as the yield-scaled C footprint (0.6 kg CO2-eq kg−1) were observed in the GM+Rs-DW10 treatment, both even lower than those in CK (15.11 t CO2-eq ha−1and 2.1 kg CO2-eq kg−1). Moreover, the GM+Rs-DW10 treatment led to an increase in net ecosystem economic benefit (NEEB) of 3750 and 2870 CNY ha−1 than CK and GM+Rs over a 2-year period. Collectively, delayed flooding with green manure and rice straw incorporation is conducive to achieving high NEEB and low risk of GHG emissions. This finding provides important and novel insights for eco-efficient rice production. |
| format | Article |
| id | doaj-art-dc8a726ec4d344b7be19751640ac6eb9 |
| institution | DOAJ |
| issn | 2666-9161 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
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| series | Resources, Environment and Sustainability |
| spelling | doaj-art-dc8a726ec4d344b7be19751640ac6eb92025-08-20T02:49:59ZengElsevierResources, Environment and Sustainability2666-91612024-12-011810017310.1016/j.resenv.2024.100173Appropriately delayed flooding before rice transplanting increases net ecosystem economic benefit in the winter green manure-rice rotation systemZhengbo Ma0Rongyan Bu1Guopeng Zhou2Haoran Fu3Jinxin Sun4Ting Liang5Cheng Cai6Danna Chang7Qingxu Ma8Ji Wu9David R. Chadwick10Davey L. Jones11Weidong Cao12State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China; School of Environmental and Natural Sciences, Bangor University, Gwynedd, LL57 2UW, UKKey Laboratory of Nutrient Cycling and Arable Land Conservation of Anhui Province, National Agricultural Experimental Station for Soil Quality, Soil and Fertilizer Institute, Anhui Academy of Agricultural Sciences, 230001 Hefei, ChinaAnhui Province Key Laboratory of Farmland Ecological Conservation and Nutrient Utilization, Anhui Province Engineering and Technology Research Center of Intelligent Manufacture and Efficient Utilization of Green Phosphorus Fertilizer, College of Resources and Environment, Anhui Agricultural University, Hefei, 230036, China; Corresponding authors.School of Environmental and Natural Sciences, Bangor University, Gwynedd, LL57 2UW, UK; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, ChinaState Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, ChinaState Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, ChinaState Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, ChinaState Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, ChinaZhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, ChinaKey Laboratory of Nutrient Cycling and Arable Land Conservation of Anhui Province, National Agricultural Experimental Station for Soil Quality, Soil and Fertilizer Institute, Anhui Academy of Agricultural Sciences, 230001 Hefei, China; Corresponding authors.School of Environmental and Natural Sciences, Bangor University, Gwynedd, LL57 2UW, UKSchool of Environmental and Natural Sciences, Bangor University, Gwynedd, LL57 2UW, UKState Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China; Corresponding authors.In southern China, co-incorporating winter green manure and rice straw has proven to be a practical and economically viable strategy that enhances soil carbon (C) sequestration and agricultural productivity in rice paddies. However, the issue of how to control the greenhouse gas (GHG) emissions in paddy fields owing to the incorporation of substantial organic matter remains a bottleneck. A 2-year field experiment was conducted, which included five treatments: conventional water management with no residue (CK) and with co-incorporation of green manure and rice straw (GM+Rs), delayed flooding by 5, 10, and 15 days after the co-incorporation of green manure and rice straw (GM+Rs-DW5, GM+Rs-DW10, and GM+Rs-DW15) before transplanting rice seedlings. The delayed flooding treatments reduced the 2-year average CH4 emissions by 40.9%–60.8% compared with GM+Rs. The delayed flooding inhibited the growth of methanogens and CH4 emissions, which was linked to a reduction of dissolved organic carbon (DOC) concentration in surface water. The lowest C footprint (4.05 t CO2-eq ha−1) as well as the yield-scaled C footprint (0.6 kg CO2-eq kg−1) were observed in the GM+Rs-DW10 treatment, both even lower than those in CK (15.11 t CO2-eq ha−1and 2.1 kg CO2-eq kg−1). Moreover, the GM+Rs-DW10 treatment led to an increase in net ecosystem economic benefit (NEEB) of 3750 and 2870 CNY ha−1 than CK and GM+Rs over a 2-year period. Collectively, delayed flooding with green manure and rice straw incorporation is conducive to achieving high NEEB and low risk of GHG emissions. This finding provides important and novel insights for eco-efficient rice production.http://www.sciencedirect.com/science/article/pii/S2666916124000264Flooding managementGreen manureRice strawGreenhouse gasCarbon footprintNet ecosystem economic benefit |
| spellingShingle | Zhengbo Ma Rongyan Bu Guopeng Zhou Haoran Fu Jinxin Sun Ting Liang Cheng Cai Danna Chang Qingxu Ma Ji Wu David R. Chadwick Davey L. Jones Weidong Cao Appropriately delayed flooding before rice transplanting increases net ecosystem economic benefit in the winter green manure-rice rotation system Resources, Environment and Sustainability Flooding management Green manure Rice straw Greenhouse gas Carbon footprint Net ecosystem economic benefit |
| title | Appropriately delayed flooding before rice transplanting increases net ecosystem economic benefit in the winter green manure-rice rotation system |
| title_full | Appropriately delayed flooding before rice transplanting increases net ecosystem economic benefit in the winter green manure-rice rotation system |
| title_fullStr | Appropriately delayed flooding before rice transplanting increases net ecosystem economic benefit in the winter green manure-rice rotation system |
| title_full_unstemmed | Appropriately delayed flooding before rice transplanting increases net ecosystem economic benefit in the winter green manure-rice rotation system |
| title_short | Appropriately delayed flooding before rice transplanting increases net ecosystem economic benefit in the winter green manure-rice rotation system |
| title_sort | appropriately delayed flooding before rice transplanting increases net ecosystem economic benefit in the winter green manure rice rotation system |
| topic | Flooding management Green manure Rice straw Greenhouse gas Carbon footprint Net ecosystem economic benefit |
| url | http://www.sciencedirect.com/science/article/pii/S2666916124000264 |
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