精品文档---下载后可任意编辑长期施肥的农田土壤固碳与增产效应的开题报告摘要：随着全球气候变化问题的加剧和粮食安全问题的日益突出，农田土壤碳汇与增产效应成为了当前讨论的热点。本文通过文献调研和实地调查，探究了长期施肥对农田土壤固碳与增产效应的影响。讨论发现，长期施肥能够显著增加土壤有机质含量、提高土壤肥力，进而促进作物生长发育，实现农田产量的提高。与此同时，长期施肥还能够有效地增加土壤微生物量和多样性，提高土壤生态系统的稳定性和抗干扰性，进一步促进土壤碳汇的形成和稳定。因此，长期施肥在农田土壤固碳和增产方面具有显著的促进作用，可以为农业生产和环境保护提供有力支撑。关键词：长期施肥；农田土壤；固碳；增产Abstract:With the worsening of global climate change and the increasingly prominent issue of food security, the effects of agricultural soil carbon sequestration and yield promotion have become a hot topic of research. Through literature review and field investigations, this paper explores the impact of long-term fertilization on soil carbon sequestration and yield promotion in agricultural fields. The results show that long-term fertilization significantly increases soil organic matter content and soil fertility, promoting the growth and development of crops and achieving an increase in yields. At the same time, long-term fertilization also effectively increases soil microbial biomass and diversity, improving the stability and resistance of the soil ecosystem, and further promoting the formation and stability of soil carbon sinks. Therefore, long-term fertilization has significant promoting effects on soil carbon sequestration and yield promotion in agricultural fields, providing strong support for agricultural production and environmental protection.Keywords: long-term fertilization; agricultural soil; carbon sequestration; yield promotion.
