I have long been engaged in research on soil microorganisms and nutrient cycling. I systematically synthesized the effects of human management practices including on greenhouse gas emissions and soil fertility using meta-analysis. Meanwhile, by employing isotope tracing technology, PLFA-SIP (Phospholipid Fatty Acid-Stable Isotope Probing) technology, ¹³C-amino sugar technology, and metagenomic sequencing technology, I have clarified the processes of microbial utilization and sequestration of human management practices. Meanwhile, I systematically carried out studies on the microbiological mechanisms of human management practices regulating the fixation, transformation, and accumulation of photosynthetic carbon in soil. Using stable isotope tracing as the main technical method, this research quantitatively revealed the regulatory differences of different farmland management modes on the distribution ratio, turnover rate, and occurrence forms of photosynthetically fixed carbon in labile, slow, and recalcitrant soil organic carbon fractions. It also clarified the mediating role of key microbial groups in the transformation and sequestration of photosynthetic carbon into the soil organic carbon pool, and analyzed the intrinsic mechanisms by which farmland management practices affect the efficiency and stability of soil photosynthetic carbon fixation from a microbial ecological perspective.