时间标签：数据日期 2026-10-31 · 生成时间 2026-11-01 05:30（Asia/Shanghai）｜ 检索窗口 PubMed edat 2026/10/28–2026/10/31 ｜ 情报发生日期 2026-10-31
研究问题
While food security remains a significant global challenge.；However, these areas are now facing an unprecedented development predicament: under the realistic constraints of dwindling arable land resources, stricter requirements for reducing chemical fertilizer and pesticide usage, and increasingly rigid ecological protection red lines, a sharp conflict has emerged between the traditional high-input, high-output agricultural production model and the goals of agricultural green and low-carbon transformation [].；Opponents, however, contend that food security-oriented agricultural development does not necessarily worsen agricultural pollution.
方法
Section "" presents the stylized facts and theoretical analysis of the impact of the major grain-producing areas policy on agricultural green transformation; Sect. "" proposes the DID model and its estimation approach, followed by an introduction to variable definitions and data sources; Sect. "" tests the key hypotheses of this study based on the estimation results of the DID model.；Furthermore, the total carbon emissions are divided by the total sown area of crops to represent agricultural pollution intensity per unit area, followed by logarithmic transformation for analysis. treati is a dummy variable indicating whether a province is a major grain-producing area, taking the value of 1 if it is and 0 otherwise; timet is a dummy variable representing the implementation of the major grain-producing areas policy, assigned a value of 1 for the year 2004 and thereafter, and 0 for years prio
核心结论
The baseline regression results in Table indicate that the major grain-producing areas policy exerts a significant inhibitory effect on both agricultural non-point source pollution and carbon emissions.；This has enabled a win-win outcome of increased production and reduced emissions.；Such evidence challenges the traditional trade-off view between production and environmental protection, suggesting that under appropriate institutional design, the two objectives can be achieved simultaneously. ‖ 结论：Allowing farmers flexibly choose agricultural production services such as farming, irrigation, fertilization, pesticide application, and harvesting, utilizing socialized division of labor to overcome labor shortages, and ensuring the achievement of green transformation goals in different populations and resource endowments.
局限
This study integrates findings on heterogeneity with theories of economies of scale and technology absorption.；While this study provides robust empirical evidence for policy-driven green transformation, several limitations remain that warrant further exploration: First, in terms of data granularity.；Future research could combine household-level survey data to investigate how resource endowments, such as land fragmentation and family labor structure, shape green technology adoption among diverse types of farmers.
对本项目的价值
★☆☆☆☆ 方法学进展决定我们能否在有限样本下检出真实效应，属基础设施级收益。
全文来源
PMC JATS 全文（正文 86,622 字符，已过标题/DOI 逐字归属校验）
原文题录
- 英文标题：Does the goal of food security hinder the agricultural green and low-carbon transformation? Evidence from China.
- 期刊与标识：Carbon Balance Manag · PMID 42955556 · DOI 10.1186/s13021-026-00490-w
B 级证据分级：B 级（同行评议临床前研究，主要为动物模型）
本文核心结论来自动物模型或体外细胞学，属临床前证据，不能外推至人体。「延长健康寿命」「改善功能」等表述在小鼠中的意义，与人类临床结局之间仍有距离。
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