Acta Agriculturae Zhejiangensis ›› 2023, Vol. 35 ›› Issue (10): 2425-2435.DOI: 10.3969/j.issn.1004-1524.20220879

• Environmental Science • Previous Articles     Next Articles

Effet of vegetation restoration models on soil physiochemical properties, enzymes activities and fungal diversity in rocky desertification area of northwest Guangxi, China

GAO Feng1(), WEN Shizhi1, WEI Shuoxing2,*(), OU Hanbiao2, WANG Zhihui2   

  1. 1. College of Forestry, Central South University of Forestry and Technology, Changsha 410004, China
    2. Key Laboratory of Central South Fast-Growing Timber Cultivation of National Forestry and Grassland Administration, Guangxi Key Laboratory of Superior Timber Trees Resource Cultivation, Guangxi Forestry Research Institute, Nanning 530002, China
  • Received:2022-06-13 Online:2023-10-25 Published:2023-10-31

Abstract:

In the present study, the differences of soil physiochemical properties, enzymes activities, fungal community diversity under vegetation restoration models in karst degraded areas were explored, as well as the correlation within soil physiochemical properties, enzymes activities, fungal community diversity, by taking the deciduous broad-leaved forest (DF), deciduous evergreen broad-leaved mixed forest (EDF) and evergreen broad-leaved forest (EF), which have been artificially restored for 13 years, as test treatments and the enclosure forest (ENF) as the control. It was shown that the contents of total nitrogen and available phosphorus, the activites of saccharase in the artificially restored forests were significantly (P<0.05) higher than those of ENF. The relative abundance of fungi was higher in artificially restored forest than that in ENF, in which the dominant fungi were Ascomycota and Basidiomycota. Functional prediction showed that soil fungi were mainly saprotroph and pathotroph. Compred with ENF, DF increased the relative abundance of pathotrophic fungi, EDF and EF increased the relative abundance of symbiotrophic fungi. In conclusion, compared with the enclosure forest, artificially restored forests could effectively improve soil nutrients contents, enzymes activities and relative abundance of fungal community in karst degraded areas.

Key words: vegetation restoration model, fungal community, karst, enzyme activity, soil nutrient

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