碳排放约束下耕地利用推动粮食生产的逻辑关联、现实矛盾与路径优化

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中文摘要：耕地利用是国家粮食安全的重要保障,在碳排放约束背景下探究其与粮食生产之间的有机关联有助于揭示"土-碳-粮"三要素复杂的逻辑关系.该研究基于归纳演绎法与理论分析法,在梳理碳约束下耕地利用与粮食生产逻辑关系的基础上,深入分析粮食安全保障与碳减排背景下中国耕地可持续利用面临的挑战,并提出促进耕地绿色转型升级与粮食综合生产能力提高的优化路径.结果表明:1)碳排放约束下耕地利用与粮食生产之间紧密的逻辑关联形成了复杂的"土-碳-粮"要素系统;2)当前农业生产条件下实施耕地利用碳减排对国家粮食安全具有不确定性影响,但粮食稳产与增产仍将造成大量碳排放;3)为有效改善碳排放约束下耕地利用与粮食生产的紧平衡状态,从耕地保护、碳减排、粮食生产三方面通过耕地资源配置优化、碳交易市场构建、粮食生产结构调整等方式实现"土-碳-粮"要素协调路径优化.未来需合理规划耕地空间利用格局,采取多种政策工具,转变耕地利用方式,促进耕地低碳、绿色利用与国家粮食安全的可持续协同发展.

外文标题：Logical correlation,realistic contradictions and path optimization for promoting grain production through cultivated land utilization under carbon emission constraints

外文摘要：Cultivated land is the most important carrier of grain production.Quantity,quality,and utilization rate can also determine the production capacity of grain for national grain security.Among them,agricultural carbon emission has been one of the important sources of greenhouse gases.There is a complex logical relationship among land use,land use carbon reduction,and grain production under the strategic context of climate change response to the overall layout of ecological civilization.In response to the growing demand for grain,agricultural production factors in the short term have caused ecological pollution and carbon emissions in cultivated land.The demand for diversified agricultural products has also intensified the excessive investment of production resources,further deteriorating the ecological environment of cultivated land and carbon emissions.Therefore,this study aims to explore the relationship between cultivated land utilization and grain production in the context of carbon emission constraints,in order to reveal the complex logical relationship among the three elements of"soil-carbon-grain".The challenges were also proposed to sustainably utilize the cultivated land under the goals of grain security and carbon emission reduction.Furthermore,the optimal paths were constructed to promote the green transformation and upgrading of cultivated land use for better grain production.The results showed that:(1)A complex"soil-carbon-grain"factor system was obtained to form the logical connection between cultivated land utilization and grain production under carbon emission constraints.(2)The carbon reduction was implemented to utilize the cultivated land under current agricultural production.There were uncertain impacts on national grain security.But the ever-increasing grain production still resulted in a large amount of carbon emissions.(3)There was a better balance between cultivated land utilization and grain production under carbon emission constraints.A coordinated optimal path was established for the"soil-carbon-grain"elements from three aspects:cultivated land protection,carbon reduction,and grain production.The cultivated land resources were allocated to construct a carbon trading market for the structure of grain production.According to the current agricultural production,it was still feasible to coordinate the"Carbon Peaking and Carbon Neutrality"goals with grain security goals,although there was a high degree of uncertainty on carbon emissions that were reduced from cultivated land utilization.The proportion and quantity of input were optimized from the factors of grain production,in order to implement the"Trinity"protection system for the cultivated land,differentiated carbon reduction for cultivated land use,and stable support of agricultural funding.A mature trading market of agricultural carbon was established to innovate the green technologies of agricultural production.The carbon emissions were reduced from the cultivated land use for the national grain security,the carbon sequestration emission reduction potential of cultivated land,and grain production.It is very necessary to plan the spatial patterns of cultivated land using various policy tools,in order to promote the sustainable and synergistic development of low-carbon and green utilization of cultivated land and national food security.

外文关键词：

carbon emissioncultivated land utilizationgrain productionlogical correlationpath optimization

作者：

程鹏、柳可、张杨、唐厚田、吴诗嫚、向美来

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作者单位：

武汉工程大学管理学院,武汉 430205

华中农业大学公共管理学院,武汉 430070

首都经济贸易大学城市经济与公共管理学院,北京 100070

厦门大学公共事务学院,厦门 361005

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关键词：

碳排放耕地利用粮食生产逻辑关联路径优化

基金：

国家自然科学基金青年项目教育部人文社会科学研究规划基金项目湖北省社科基金一般项目(后期资助项目)武汉工程大学校级教育研究项目武汉工程大学科学研究基金项目

项目编号：

4210128423YJA790083HBSKJJ202332672023YB06K2023099

出版年：

2024

DOI：

10.11975/j.issn.1002-6819.202311126

农业工程学报

中国农业工程学会

农业工程学报

CSTPCD北大核心

影响因子：2.529

ISSN：1002-6819

年,卷(期)：2024.40(12)

参考文献量28