优化节水抗旱水稻栽培中的水分管理可减少甲烷排放，提高净经济效益

IF 6.4 1区农林科学 Q1 AGRONOMY

Field Crops Research Pub Date : 2025-09-02 DOI:10.1016/j.fcr.2025.110123

Keda Jin , Yuting Yang , Kaifu Song , Jing Ma , Yujiao Dong , Zhenke Zhu , Tida Ge , Shihua Lv , Guangbin Zhang , Hua Xu

{"title":"优化节水抗旱水稻栽培中的水分管理可减少甲烷排放，提高净经济效益","authors":"Keda Jin , Yuting Yang , Kaifu Song , Jing Ma , Yujiao Dong , Zhenke Zhu , Tida Ge , Shihua Lv , Guangbin Zhang , Hua Xu","doi":"10.1016/j.fcr.2025.110123","DOIUrl":null,"url":null,"abstract":"<div><h3>Context</h3><div>Rice fields feed half of the world's population as well as account for about half of the greenhouse gas (GHG) emissions from croplands, particularly methane (CH<sub>4</sub>). Choosing new rice varieties and irrigation modes might reduce GHG emissions without compromising production.</div></div><div><h3>Objective</h3><div>Herein, we aimed to investigate the potential of integrating water management optimization (WMO) with water-saving and drought-resistant rice (WDR) varieties to mitigate GHG emissions while maintaining productivity and economic viability.</div></div><div><h3>Methods</h3><div>A two-year field experiment in Southwest China evaluated three water management strategies - continuous flooding (CF), natural rainfall (NR), and WMO - applied to conventional rice (Chuanxiang 8108) and three WDR cultivars (Hanyou 73, Hanyou 727, and Hanyou 704).</div></div><div><h3>Results</h3><div>The NR modes reduced CH<sub>4</sub> emissions by 66.2 %-71.1 % and global warming potential (GWP) by 64.9 %-70.6 % compared to CF but decreased yields by 11.5 %-21.5 %. In contrast, WMO achieved comparable yields to CF while reducing CH<sub>4</sub> emissions by 53.5 %-61.4 % and GWP by 53.1 %-60.8 %. WDR varieties further enhanced GHG mitigation: Hanyou 73 under WMO (WMO73) reduced CH<sub>4</sub> emissions by 13.7 %-21.6 % and nitrous oxide (N<sub>2</sub>O) emissions by 28.6 %-45.8 % relative to conventional rice (WMO8108), due to its well-developed deep root system, which enhances nitrogen uptake efficiency and promotes rhizosphere oxidation. Economic analysis demonstrated that WMO73 achieved the highest net ecosystem economic benefit (NEEB, 420.5 CNY·ha<sup>−1</sup>) by increasing yield, reducing GWP costs, and minimizing irrigation inputs, outperforming CF and NR modes (both negative NEEB).</div></div><div><h3>Conclusions</h3><div>These findings highlight that integrating WMO with high-performance WDR cultivars, such as Hanyou 73, effectively balances emission reduction, yield stability, and economic returns.</div></div><div><h3>Significance</h3><div>This approach offers a scalable solution for sustainable rice production in water-scarce regions, aligning with global climate goals without compromising food security.</div></div>","PeriodicalId":12143,"journal":{"name":"Field Crops Research","volume":"333 ","pages":"Article 110123"},"PeriodicalIF":6.4000,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Optimizing water management in water-saving and drought-resistant rice cultivation reduces methane emissions with enhanced net economic benefits\",\"authors\":\"Keda Jin , Yuting Yang , Kaifu Song , Jing Ma , Yujiao Dong , Zhenke Zhu , Tida Ge , Shihua Lv , Guangbin Zhang , Hua Xu\",\"doi\":\"10.1016/j.fcr.2025.110123\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><h3>Context</h3><div>Rice fields feed half of the world's population as well as account for about half of the greenhouse gas (GHG) emissions from croplands, particularly methane (CH<sub>4</sub>). Choosing new rice varieties and irrigation modes might reduce GHG emissions without compromising production.</div></div><div><h3>Objective</h3><div>Herein, we aimed to investigate the potential of integrating water management optimization (WMO) with water-saving and drought-resistant rice (WDR) varieties to mitigate GHG emissions while maintaining productivity and economic viability.</div></div><div><h3>Methods</h3><div>A two-year field experiment in Southwest China evaluated three water management strategies - continuous flooding (CF), natural rainfall (NR), and WMO - applied to conventional rice (Chuanxiang 8108) and three WDR cultivars (Hanyou 73, Hanyou 727, and Hanyou 704).</div></div><div><h3>Results</h3><div>The NR modes reduced CH<sub>4</sub> emissions by 66.2 %-71.1 % and global warming potential (GWP) by 64.9 %-70.6 % compared to CF but decreased yields by 11.5 %-21.5 %. In contrast, WMO achieved comparable yields to CF while reducing CH<sub>4</sub> emissions by 53.5 %-61.4 % and GWP by 53.1 %-60.8 %. WDR varieties further enhanced GHG mitigation: Hanyou 73 under WMO (WMO73) reduced CH<sub>4</sub> emissions by 13.7 %-21.6 % and nitrous oxide (N<sub>2</sub>O) emissions by 28.6 %-45.8 % relative to conventional rice (WMO8108), due to its well-developed deep root system, which enhances nitrogen uptake efficiency and promotes rhizosphere oxidation. Economic analysis demonstrated that WMO73 achieved the highest net ecosystem economic benefit (NEEB, 420.5 CNY·ha<sup>−1</sup>) by increasing yield, reducing GWP costs, and minimizing irrigation inputs, outperforming CF and NR modes (both negative NEEB).</div></div><div><h3>Conclusions</h3><div>These findings highlight that integrating WMO with high-performance WDR cultivars, such as Hanyou 73, effectively balances emission reduction, yield stability, and economic returns.</div></div><div><h3>Significance</h3><div>This approach offers a scalable solution for sustainable rice production in water-scarce regions, aligning with global climate goals without compromising food security.</div></div>\",\"PeriodicalId\":12143,\"journal\":{\"name\":\"Field Crops Research\",\"volume\":\"333 \",\"pages\":\"Article 110123\"},\"PeriodicalIF\":6.4000,\"publicationDate\":\"2025-09-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Field Crops Research\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0378429025003880\",\"RegionNum\":1,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"AGRONOMY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Field Crops Research","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0378429025003880","RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"AGRONOMY","Score":null,"Total":0}

引用次数: 0

摘要

稻田养活了世界上一半的人口，也产生了大约一半的农田温室气体（GHG）排放，尤其是甲烷（CH4）。选择新的水稻品种和灌溉模式可能在不影响产量的情况下减少温室气体排放。本研究旨在探讨水资源管理优化（WMO）与节水抗旱水稻（WDR）品种结合的潜力，以减少温室气体排放，同时保持生产力和经济可行性。方法在西南地区进行了为期2年的田间试验，评价了连续淹水（CF）、自然降雨（NR）和WMO 3种水管理策略在常规水稻川香8108和3个WDR品种韩优73、韩优727和韩优704上的应用效果。结果与CF相比，NR模式减少了66.2 % ~ 71.1 %的CH4排放量和64.9 % ~ 70.6 %的全球变暖潜能值，减少了11.5 % ~ 21.5 %的产量。相比之下，WMO实现了与CF相当的产量，同时减少了53.5 %-61.4 %的CH4排放量和53.1 %-60.8 %的GWP。WMO下的汉优73 （WMO73）与常规水稻（WMO8108）相比，CH4排放量减少13.7 %-21.6 %，氧化亚氮（N2O）排放量减少28.6 %-45.8 %，这是由于其深层根系发育良好，提高了氮素吸收效率，促进了根际氧化。经济分析表明，WMO73通过提高产量、降低GWP成本和减少灌溉投入，获得了最高的生态系统净经济效益（420.5 CNY·ha - 1），优于CF和NR模式（均为负NEEB）。结论将WMO与高性能WDR品种（如韩油73）结合，可以有效地平衡减排、产量稳定和经济效益。该方法为缺水地区的可持续水稻生产提供了一种可扩展的解决方案，在不损害粮食安全的情况下与全球气候目标保持一致。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Optimizing water management in water-saving and drought-resistant rice cultivation reduces methane emissions with enhanced net economic benefits

Context

Rice fields feed half of the world's population as well as account for about half of the greenhouse gas (GHG) emissions from croplands, particularly methane (CH₄). Choosing new rice varieties and irrigation modes might reduce GHG emissions without compromising production.

Objective

Herein, we aimed to investigate the potential of integrating water management optimization (WMO) with water-saving and drought-resistant rice (WDR) varieties to mitigate GHG emissions while maintaining productivity and economic viability.

Methods

A two-year field experiment in Southwest China evaluated three water management strategies - continuous flooding (CF), natural rainfall (NR), and WMO - applied to conventional rice (Chuanxiang 8108) and three WDR cultivars (Hanyou 73, Hanyou 727, and Hanyou 704).

Results

The NR modes reduced CH₄ emissions by 66.2 %-71.1 % and global warming potential (GWP) by 64.9 %-70.6 % compared to CF but decreased yields by 11.5 %-21.5 %. In contrast, WMO achieved comparable yields to CF while reducing CH₄ emissions by 53.5 %-61.4 % and GWP by 53.1 %-60.8 %. WDR varieties further enhanced GHG mitigation: Hanyou 73 under WMO (WMO73) reduced CH₄ emissions by 13.7 %-21.6 % and nitrous oxide (N₂O) emissions by 28.6 %-45.8 % relative to conventional rice (WMO8108), due to its well-developed deep root system, which enhances nitrogen uptake efficiency and promotes rhizosphere oxidation. Economic analysis demonstrated that WMO73 achieved the highest net ecosystem economic benefit (NEEB, 420.5 CNY·ha⁻¹) by increasing yield, reducing GWP costs, and minimizing irrigation inputs, outperforming CF and NR modes (both negative NEEB).

Conclusions

These findings highlight that integrating WMO with high-performance WDR cultivars, such as Hanyou 73, effectively balances emission reduction, yield stability, and economic returns.

Significance

This approach offers a scalable solution for sustainable rice production in water-scarce regions, aligning with global climate goals without compromising food security.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Field Crops Research 农林科学-农艺学

CiteScore

9.60

自引率

12.10%

发文量

307

审稿时长

46 days

期刊介绍： Field Crops Research is an international journal publishing scientific articles on: √ experimental and modelling research at field, farm and landscape levels on temperate and tropical crops and cropping systems, with a focus on crop ecology and physiology, agronomy, and plant genetics and breeding.