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| 农田基础设施的碳减排效应——基于长江中上游5省（市）稻农的实证研究 |
| Carbon emission reduction effect of farmland infrastructure：an empirical study based on rice farmers in 5 provinces（municipality）within the Yangtze River’s middle and upper reaches |
| Received:May 28, 2025 |
| DOI：10.13254/j.jare.2025.0496 |
| 中文关键词: 农田基础设施;碳排放强度;碳边际减排成本;绿色技术;水稻;低碳转型 |
| 英文关键词: farmland infrastructure;carbon emission intensity;marginal carbon abatement cost;green technology;rice;low-carbon transformation |
| 基金项目:国家社会科学基金重点项目（24AZD023） |
| Author Name | Affiliation | E-mail | | ZHENG Yuyu | State Key Laboratory of Efficient Utilization of Arable Land in China/Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China | | | NIU Hui | State Key Laboratory of Efficient Utilization of Arable Land in China/Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China | | | YIN Changbin | State Key Laboratory of Efficient Utilization of Arable Land in China/Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China | | | YIN Yanshu | State Key Laboratory of Efficient Utilization of Arable Land in China/Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China | | | YANG Xiaomei | State Key Laboratory of Efficient Utilization of Arable Land in China/Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China | yangxiaomei@caas.cn |
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| 中文摘要: |
| 科学揭示农田基础设施的碳减排效应及作用机制，对有序推进农田基础设施建设、加快推动水稻种植低碳转型具有重要现实意义。本研究通过问卷调查法在长江中上游5省（市）获取285份稻农数据，利用比值法计算碳排放强度，采用影子价格法测算碳边际减排成本；结合中介效应模型和Probit模型，分析农田基础设施建设对水稻种植碳减排的影响效应及作用机制。结果表明：农田基础设施显著抑制碳排放强度，其中道路工程的影响系数最高；绿色技术在此过程中发挥中介作用，其中农药减量替代技术与节水灌溉技术的中介效应显著。田间道路工程对碳边际减排成本呈显著倒“U”形影响。为加快推动水稻低碳转型，应优先推进田间道路工程改造升级，构建“工程-农艺”相结合的减排模式，评估减排成本，以梯次推进农田基础设施建设。 |
| 英文摘要: |
| Scientifically revealing the carbon emission reduction effect and mechanism of farmland infrastructure is of great practical significance. It helps advance the construction of farmland infrastructure in an orderly way and accelerate the low-carbon transformation of rice cultivation. Using a questionnaire survey method, data from 285 rice farmers in 5 provinces（municipality）within the Yangtze River’s middle and upper reaches were collected. Carbon emission intensity（CI）was calculated by using the ratio method, while marginal carbon abatement cost（M_cost）was estimated by applying the shadow price method. A mediation effect model and a Probit model were employed to explore the impact and mechanism of farmland infrastructure construction on carbon emission reduction in rice cultivation. The results indicated that：farmland infrastructure significantly reduced CI, with road engineering exhibiting a strongest effect. Green technologies played a mediating role in this process, among which pesticide reduction substitution technology and water-saving irrigation technology demonstrate significant mediation effects. Field road had a significant inverted“U”shaped impact on M_cost. To accelerate the low-carbon transition of rice production, priority should be given to promoting the renovation and upgrading of field road projects, establishing an “engineering-agronomy”integrated emission reduction model, and assessing emission reduction costs to advance the phased construction of farmland infrastructure. |
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