毛竹林下套种黑皮鸡枞对林分生长及土壤养分的影响

[Objective]To explore the effects of interplanting Oudemansiella raphanipes under Phyllostachys edulis forest on forest growth and soil nutrients.[Method]In this paper,Oudemansiella raphanipes was interplanted under the Phyllostachys edulis forest,three substrates were designed for Oudemansiella raphanipes cultivation(A:25%wood shavings + 75%bamboo shavings,B:50%wood shavings + 50%bamboo shavings,C:75%wood shavings + 25%bamboo shavings),the traditionally managed bamboo forests were used as a control(CK),the influence of interplanting Oudemansiella raphanipes under the Phyllostachys edulis forest on bamboo growth and soil nutrient changes were analyzed.[Results]The results showed that the rate of grown bamboos and DBH of A,B,and C were significantly higher than those of CK.Compared with the control,the soil pH of the interplanting plot increased,and soil acidification eased.Soil total phosphorus,total potassium,available phosphorus,and available potassium increased significantly compared with the control.It was found that the soil quality index of the interplanting plots was higher than that of CK.[Conclusion]In summary,interplanting Oudemansiella raphanipes under Phyllostachys edulis forest significantly promotes bamboos and the growth of new bamboos,improves soil nutrients and comprehensive soil quality,and has a positive effect on the growth of the bamboo forests and soil nutrients,the substrate of 75%wood shavings + 25%bamboo shavings promotes the growth of bamboo forests and soil nutrients the most.