| 谢飞鹏,冶雨萌,周文涛,刘稳,龙攀,徐莹,傅志强.垄厢节水栽培对稻田温室气体排放和产量的影响[J].农业环境科学学报,2025,44(10):2720-2727. |
| 垄厢节水栽培对稻田温室气体排放和产量的影响 |
| Effects of water-saving ridge cultivation on greenhouse gas emissions and yield in paddy fields |
| 投稿时间：2024-10-22 |
| DOI：10.11654/jaes.2024-0906 |
| 中文关键词: 垄厢栽培 温室气体 水分管理 水溶性有机碳 无机氮 |
| 英文关键词: ridge box cultivation greenhouse gas moisture management water-soluble organic carbon inorganic nitrogen |
| 基金项目:国家重点研发计划项目（2022YFD2300305）；湖南省自然科学基金项目（2021JJ30319） |
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| 中文摘要: |
| 为明确垄、厢节水栽培对稻田温室气体排放和产量的影响，本试验以平作常规栽培为对照（CK），设置垄作节水栽培（RWS）和厢作节水栽培（CWS），于2022年开展大田试验，探究垄、厢节水栽培对稻田CH4和N2O的累积排放量、全球增温潜势、产量、土壤中水溶性有机碳和无机氮含量的影响，并揭示垄、厢节水栽培模式下温室气体排放与土壤水溶性有机碳和无机氮含量之间的关系。结果表明：相比于 CK处理，RWS、CWS处理 N2O累积排放量分别增加 54.72%、16.98%，而 CH4累积排放量分别降低31.63%、27.72%，且全球增温潜势降低31.62%、27.70%，排放强度降低36.09%、30.83%。RWS、CWS处理实际产量较CK处理增加7.11%、4.78%。相关分析表明，不同栽培模式下稻田CH4排放与水溶性有机碳、NH+4-N呈极显著正相关，而与NO-3-N呈极显著负相关；N2O排放与NH+4-N、NO-3-N和水溶性有机碳含量呈正相关。从总效应来看，RWS比CWS处理更有利于提高水稻产量，且能有效降低稻田温室气体排放。研究表明，垄作节水栽培是一种实现水稻高产和温室气体减排的有效栽培模式。 |
| 英文摘要: |
| In order to clarify the effects of water-saving irrigation ridge and box cultivation on greenhouse gas emissions and yield in paddy fields, this experiment was carried out in 2022 to explore the effects of ridge and box water-saving cultivation（RWS and CWS）on the cumulative emissions of CH4 and N2O, global warming potential, yield, and the content of water-soluble organic carbon（WDOC）and inorganic nitrogen in paddy fields. Relationship between greenhouse gas emissions and WDOC and inorganic nitrogen content under watersaving cropping mode. The results showed that compared with the CK treatment, the cumulative N2O emissions of RWS and CWS treatments increased by 54.72% and 16.98%, respectively, while the cumulative emissions of CH4 decreased by 31.63% and 27.72%, respectively, and the global warming potential decreased by 31.62% and 27.70%, and the emission intensity decreased by 36.09% and 30.83%, respectively. The yield of RWS and CWS treatment increased by 7.11% and 4.78% compared with that of CK treatment. Correlation analysis showed that CH4 emissions were significantly positively correlated with WDOC and NH+4-N, but negatively correlated with nitrate nitrogen under different cultivation patterns. N2O emissions were positively correlated with NH+4-N, NO-3-N and WDOC content. From the perspective of total effect, RWS and CWS treatments are beneficial to increase rice yield and effectively reduce greenhouse gas emissions in paddy fields. Therefore, water-saving cultivation in ridges and compartments is a cultivation method to achieve high yield of rice and reduce greenhouse gas emissions. |
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