数字农科院2.0

Higher Food Yields and Lower Greenhouse Gas Emissions from Aquaculture Ponds with High-Stalk Rice Planted

文献类型： 外文期刊

作者： Li, Fengbo;Qian, Haoyu;Yang, Tong;Wang, Mengjie;Fang, Fuping;Jiang, Yu;Wu, Dianxing;Zhang, Ning;Feng, Jinfei

作者机构：

关键词： aquaculture pond;greenhouse gas emission;rice;mitigation strategy;integrate culture

期刊名称： ENVIRONMENTAL SCIENCE & TECHNOLOGY

ISSN： 0013-936X

年卷期： 2023 年 57 卷 33 期

页码：

收录情况： SCIE（2023版） ; ; EI（2023版）

摘要： The solution to mitigate GHG emissionsfrom aquacultureponds remains unclear. This study reported a novel pathway (culturingwith a specially developed high-stalk rice variety) to mitigate GHGemission from ponds. Aquaculture ponds are an important artificial aquaticsystem forglobal food fish production but also are a hot spot of greenhousegas (GHG) emissions. The GHG mitigation strategy and the underlyingmechanism for aquaculture ponds are still poorly understood. In thisstudy, we conducted a 2 year field experiment to determine the effectsof planting high-stalk rice (an artificially bred emergent plant forponds) on GHG emissions from aquaculture ponds. Our results showedthat planting high-stalk rice reduced CH4 emission by 64.4%and N2O emission by 76.2% over 2 years. Planting high-stalkrice significantly increased the content of O-2 and theabundance of pmoA in the sediment, thus promptingCH(4) oxidation in the ponds. The reduction of N2O emissionfrom ponds was attributed to the decreased inorganic nitrogen, amoA-Band nirS in the sediment induced by rice. Furthermore,high-stalk rice culture in the pond increased shrimp yields and gainedrice yields, resulting in a significant reduction of yield-scaledglobal warming potential. Our findings suggest that breeding appropriateemergent aquatic plants is a potential pathway to mitigate GHG emissionfrom aquaculture ponds with more food yields and economic benefits.

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