基于CiteSpace的湿地枯落物分解研究现状与趋势OA

Litter breakdown is one of the key factors that control the nutrient cycle and global climate change in wetland ecosys-tems.To understand the research advances and hotspots about litter breakdown in wetlands,we utilized the bibliometrics software,named as CiteSpace,to visualize the searched results and further systematically summarize the research progress(i.e.decomposition processes,mechanisms,and methods)about litter breakdown based on Web of Science.Our results showed that studies about litter breakdown had three developmental stages,slow-stable-rapid growth,and the key research included plant composition diversity,micro-bial mechanism,litter quality,global climate change,and the carbon cycle.More importantly,litter breakdown is affected by several biotic and abiotic factors,soil microbial community and its related soil enzyme activity is the initial limiting factor influencing litter de-composition processes.The methods to estimate the litter breakdown are usually used for laboratory incubation and litterbag technique.In conclusion,the research on litter breakdown in the wetland is still in the rapid development stage,and several factors,i.e.plant,soil,and microbes,had been discussed to affect litter breakdown.However,due to the methods through previous studies,a systematic understanding of the mechanism of litter breakdown is still not clear,especially the plant-soil-microbe interactions.Thus,future re-search needs to develop a standardized method to explore the interaction effects and try to provide an important theoretical basis for litter breakdown studies and carbon cycling in wetland ecosystems.