农田土壤碳汇功能及其影响因素分析
摘 要
农田土壤作为陆地生态系统的重要组成部分，在全球碳循环中发挥着不可忽视的作用，其碳汇功能影响因素众多且复杂。本研究旨在深入探究农田土壤碳汇功能及其影响因素，以期为提升农田土壤固碳能力提供理论依据。选取典型农田区域，通过实地采样与实验室分析相结合的方法，测定土壤有机碳含量等关键指标，并结合气象、地形、植被覆盖度及人类活动强度等多源数据进行综合分析。结果表明，不同土地利用方式下土壤碳汇功能存在显著差异，耕作层深度、施肥类型和灌溉制度对土壤碳汇功能具有重要影响，其中保护性耕作措施可有效提高土壤碳汇能力。本研究创新性地引入了多源数据融合分析方法，系统揭示了农田土壤碳汇功能的影响机制，为优化农业管理措施、增强农田土壤固碳潜力提供了科学支撑。
关键词：农田土壤碳汇；土地利用方式；保护性耕作；施肥类型；灌溉制度
Analysis Of Farmland Soil Carbon Sink Function And Its Influencing Factors
ABSTRACT
Agricultural soil, as a critical component of terrestrial ecosystems, plays an indispensable role in the global carbon cycle, with its carbon sink function being influenced by numerous and complex factors. This study aims to thoroughly investigate the carbon sink function of agricultural soil and its influencing factors, providing theoretical support for enhancing the soil's carbon sequestration capacity. By selecting typical agricultural areas, this research combines field sampling with laboratory analysis to measure key indicators such as soil organic carbon content, while integrating multi-source data including meteorological conditions, topography, vegetation cover, and intensity of human activities for comprehensive analysis. The results indicate that there are significant differences in soil carbon sink functions under different land use practices, with plowing depth, fertilizer types, and irrigation regimes exerting important influences. Notably, conservation tillage measures can effectively improve the soil’s carbon sink capacity. Innovatively, this study introduces a multi-source data fusion analysis method, systematically revealing the mechanisms affecting the carbon sink function of agricultural soil, thereby offering scientific support for optimizing agricultural management practices and enhancing the carbon sequestration potential of agricultural soils.
KEY WORDS：Agricultural Soil Carbon Sink；Land Use Practices；Conservation Tillage；Fertilizer Types；Irrigation Regimes
目 录
摘 要 I
ABSTRACT II
第1章 绪论 1
1.1 研究背景及意义 1
1.2 国内外研究现状综述 1
第2章 农田土壤碳汇功能形成机制 3
2.1 土壤有机碳的来源与转化 3
2.2 土壤微生物在碳循环中的作用 3
2.3 土壤物理化学性质对碳汇的影响 4
第3章 农田管理措施对碳汇功能的影响 5
3.1 耕作方式与土壤碳储量变化 5
3.2 施肥制度对土壤碳汇能力的影响 5
3.3 作物种植模式与土壤碳固定 6
第4章 环境因素对农田土壤碳汇的影响 7
4.1 气候条件对土壤碳汇的影响 7
4.2 土地利用变化对碳汇功能的影响 7
4.3 地形地貌对土壤碳分布的影响 8
第5章 结论 9
参考文献 10
致 谢 11
摘 要
农田土壤作为陆地生态系统的重要组成部分，在全球碳循环中发挥着不可忽视的作用，其碳汇功能影响因素众多且复杂。本研究旨在深入探究农田土壤碳汇功能及其影响因素，以期为提升农田土壤固碳能力提供理论依据。选取典型农田区域，通过实地采样与实验室分析相结合的方法，测定土壤有机碳含量等关键指标，并结合气象、地形、植被覆盖度及人类活动强度等多源数据进行综合分析。结果表明，不同土地利用方式下土壤碳汇功能存在显著差异，耕作层深度、施肥类型和灌溉制度对土壤碳汇功能具有重要影响，其中保护性耕作措施可有效提高土壤碳汇能力。本研究创新性地引入了多源数据融合分析方法，系统揭示了农田土壤碳汇功能的影响机制，为优化农业管理措施、增强农田土壤固碳潜力提供了科学支撑。
关键词：农田土壤碳汇；土地利用方式；保护性耕作；施肥类型；灌溉制度
Analysis Of Farmland Soil Carbon Sink Function And Its Influencing Factors
ABSTRACT
Agricultural soil, as a critical component of terrestrial ecosystems, plays an indispensable role in the global carbon cycle, with its carbon sink function being influenced by numerous and complex factors. This study aims to thoroughly investigate the carbon sink function of agricultural soil and its influencing factors, providing theoretical support for enhancing the soil's carbon sequestration capacity. By selecting typical agricultural areas, this research combines field sampling with laboratory analysis to measure key indicators such as soil organic carbon content, while integrating multi-source data including meteorological conditions, topography, vegetation cover, and intensity of human activities for comprehensive analysis. The results indicate that there are significant differences in soil carbon sink functions under different land use practices, with plowing depth, fertilizer types, and irrigation regimes exerting important influences. Notably, conservation tillage measures can effectively improve the soil’s carbon sink capacity. Innovatively, this study introduces a multi-source data fusion analysis method, systematically revealing the mechanisms affecting the carbon sink function of agricultural soil, thereby offering scientific support for optimizing agricultural management practices and enhancing the carbon sequestration potential of agricultural soils.
KEY WORDS：Agricultural Soil Carbon Sink；Land Use Practices；Conservation Tillage；Fertilizer Types；Irrigation Regimes
目 录
摘 要 I
ABSTRACT II
第1章 绪论 1
1.1 研究背景及意义 1
1.2 国内外研究现状综述 1
第2章 农田土壤碳汇功能形成机制 3
2.1 土壤有机碳的来源与转化 3
2.2 土壤微生物在碳循环中的作用 3
2.3 土壤物理化学性质对碳汇的影响 4
第3章 农田管理措施对碳汇功能的影响 5
3.1 耕作方式与土壤碳储量变化 5
3.2 施肥制度对土壤碳汇能力的影响 5
3.3 作物种植模式与土壤碳固定 6
第4章 环境因素对农田土壤碳汇的影响 7
4.1 气候条件对土壤碳汇的影响 7
4.2 土地利用变化对碳汇功能的影响 7
4.3 地形地貌对土壤碳分布的影响 8
第5章 结论 9
参考文献 10
致 谢 11
