农田生态系统碳汇功能及其影响因素分析
摘 要
农田生态系统在全球碳循环中扮演着重要角色，其碳汇功能对缓解气候变化具有显著意义。本研究旨在探讨中国农田生态系统的碳汇潜力及其主要影响因素。通过整合多源数据，包括遥感影像、气象记录和实地调查数据，采用多元回归分析和空间统计方法，系统分析了不同气候区、土壤类型和管理措施下的农田碳汇能力。研究发现，中国东部湿润地区的农田碳汇功能较强，而西部干旱地区则相对较弱。土壤有机质含量、降水量和农业管理措施是影响农田碳汇的主要因素。具体而言，增加有机肥施用和实施保护性耕作显著提升了农田的碳储存能力。此外，研究还发现，优化作物轮作模式和提高灌溉效率也能有效增强农田生态系统的碳汇功能。本研究的创新之处在于综合运用多种数据源和分析方法，揭示了农田碳汇功能的区域差异及其驱动机制。
关键词：农田碳汇；气候变化缓解；农业管理
ANALYSIS OF CARBON SINK FUNCTION AND ITS INFLUENCING FACTORS OF FARMLAND ECOSYSTEM
ABSTRACT
Farmland ecosystem plays an important role in the global carbon cycle, and its carbon sink function is of great significance for alleviating climate change. This study aimed to investigate the carbon sink potential of Chinese farmland ecosystem and its main influencing factors. By integrating multi-source data, including remote sensing images, meteorological records and field survey data, using multiple regression analysis and spatial statistics, we systematically analyzed the carbon sink capacity of farmland under different climate zones, soil types and management measures. The study found that the carbon sink function of farmland in the humid areas of eastern China is strong, while the western arid areas are relatively weak. Soil organic matter content, precipitation and agricultural management measures are the main factors affecting the carbon sink in farmland. Specifically, increasing the application of organic fertilizer and implementing conservation tillage have significantly improved the carbon storage capacity of farmland. Moreover, it was found that optimizing crop rotation patterns and improving irrigation efficiency can also effectively enhance the carbon sink function of farmland ecosystems. The innovation of this study lies in the comprehensive use of various data sources and analysis methods to reveal the regional differences of farmland carbon sink function and its driving mechanism.
KEY WORDS：Farmland carbon sink; climate change mitigation; agricultural management
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 研究现状分析 1
1.3 研究方法 2
第2章 农田生态系统碳汇功能评估 3
2.1 碳汇功能定义与测量方法 3
2.2 中国农田碳汇功能现状分析 3
2.3 碳汇功能影响因素初步探讨 4
第3章 影响农田碳汇功能的自然因素分析 5
3.1 气候条件对碳汇功能的影响 5
3.2 土壤类型与碳汇能力的关系 5
3.3 植被覆盖对碳汇功能的贡献 6
第4章 影响农田碳汇功能的人为因素分析 7
4.1 农业管理措施对碳汇的影响 7
4.2 土地利用变化与碳汇功能的关系 7
4.3 政策与经济激励对碳汇功能的促进作用 7
第5章 结论 9
参考文献 10
致 谢 11
摘 要
农田生态系统在全球碳循环中扮演着重要角色，其碳汇功能对缓解气候变化具有显著意义。本研究旨在探讨中国农田生态系统的碳汇潜力及其主要影响因素。通过整合多源数据，包括遥感影像、气象记录和实地调查数据，采用多元回归分析和空间统计方法，系统分析了不同气候区、土壤类型和管理措施下的农田碳汇能力。研究发现，中国东部湿润地区的农田碳汇功能较强，而西部干旱地区则相对较弱。土壤有机质含量、降水量和农业管理措施是影响农田碳汇的主要因素。具体而言，增加有机肥施用和实施保护性耕作显著提升了农田的碳储存能力。此外，研究还发现，优化作物轮作模式和提高灌溉效率也能有效增强农田生态系统的碳汇功能。本研究的创新之处在于综合运用多种数据源和分析方法，揭示了农田碳汇功能的区域差异及其驱动机制。
关键词：农田碳汇；气候变化缓解；农业管理
ANALYSIS OF CARBON SINK FUNCTION AND ITS INFLUENCING FACTORS OF FARMLAND ECOSYSTEM
ABSTRACT
Farmland ecosystem plays an important role in the global carbon cycle, and its carbon sink function is of great significance for alleviating climate change. This study aimed to investigate the carbon sink potential of Chinese farmland ecosystem and its main influencing factors. By integrating multi-source data, including remote sensing images, meteorological records and field survey data, using multiple regression analysis and spatial statistics, we systematically analyzed the carbon sink capacity of farmland under different climate zones, soil types and management measures. The study found that the carbon sink function of farmland in the humid areas of eastern China is strong, while the western arid areas are relatively weak. Soil organic matter content, precipitation and agricultural management measures are the main factors affecting the carbon sink in farmland. Specifically, increasing the application of organic fertilizer and implementing conservation tillage have significantly improved the carbon storage capacity of farmland. Moreover, it was found that optimizing crop rotation patterns and improving irrigation efficiency can also effectively enhance the carbon sink function of farmland ecosystems. The innovation of this study lies in the comprehensive use of various data sources and analysis methods to reveal the regional differences of farmland carbon sink function and its driving mechanism.
KEY WORDS：Farmland carbon sink; climate change mitigation; agricultural management
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 研究现状分析 1
1.3 研究方法 2
第2章 农田生态系统碳汇功能评估 3
2.1 碳汇功能定义与测量方法 3
2.2 中国农田碳汇功能现状分析 3
2.3 碳汇功能影响因素初步探讨 4
第3章 影响农田碳汇功能的自然因素分析 5
3.1 气候条件对碳汇功能的影响 5
3.2 土壤类型与碳汇能力的关系 5
3.3 植被覆盖对碳汇功能的贡献 6
第4章 影响农田碳汇功能的人为因素分析 7
4.1 农业管理措施对碳汇的影响 7
4.2 土地利用变化与碳汇功能的关系 7
4.3 政策与经济激励对碳汇功能的促进作用 7
第5章 结论 9
参考文献 10
致 谢 11
