Standing and Nutrient Storage of the Forest Floor Between Natural Regeneration and Artificial Regeneration Forest of Castanopsis carlesii
The forest floor standing and its nutrient characteristics are important for understanding the role of litter in carbon and nutrient cycling in forest ecosystems.The forest floor standing and nutrient storage of litter layer in natural regeneration and artificial regeneration forest of Castanopsis carlesii were studied in this research.1)The total forest floor standing was not affected by the regeneration ways,and the forest floor standing of natural regeneration was higher than that of assisted natural regeneration,the forest floor standing of natural regeneration was lower than that of assisted natural regeneration,and other components were not affected by the way of regeneration.2)In the undecomposed layer,the existing leaf stock of natural regeneration was significantly higher than that of artificial regeneration.In the semi-decomposed layer,the existing leaf stock of the natural regeneration was significantly higher than that of artificial regeneration,while the existing branch stock of the artificial regeneration was significantly higher than that of natural regeneration.3)The nitrogen(N)and phosphorus(P)concentrations of leaves in the same decomposition layer of the two forests were significantly higher than the branches,but the carbon(C)concentration was not significantly different.4)There was no significant difference in carbon,nitrogen and phosphorus storage between the two stands.The results showed that natural regeneration forest was more beneficial to nutrient maintenance and cycling.Therefore,more attention should be paid to the effects of natural regeneration on nutrient cycling in future study.
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