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[Objective] To compare the physicochemical properties and fungal community characteristics between rhizosphere soil and non-rhizosphere soil ofHippophae rhamnoides growing for different years in Pisha sandstone area of Inner Mongolia. [Methods] A total of 12 rhizosphere and non-rhizosphere soil samples were collected from the Pisha sandstone area of Ordos. Chemical methods were used to analyze soil physicochemical properties, and the fungal community composition in soil was analyzed by high-throughput sequencing. The correlations between fungal community characteristics and soil properties were analyzed. [Results] Total nitrogen (TN), available nitrogen (AN), available potassium (AK), organic matter (OM), and electrical conductivity (EC) of rhizosphere soil were higher than those of non-rhizosphere soil (P < 0.05). Soil moisture content (SMC) increased as the planting years increased (P < 0.05). The fungal richness and diversity in rhizosphere soil were higher than those in non-rhizosphere.Ascomycota andMortierellomycota were the common dominant phyla in rhizosphere soil and non-rhizosphere soil, andMortierella,Penicillium, andAspergillus were the common dominant genera. The key fungal groups in non-rhizosphere soil and rhizosphere soil wereMortierella andGibberella, respectively. The redundancy analysis showed that OM was a key soil factor affecting the soil fungal distribution.Mortierella was correlated with OM, AN, and total potassium (TK) (P < 0.05).Gibberella was correlated with AN, OM, and EC (P < 0.05). [Conclusion] The planting ofH.rhamnoides in Pisha sandstone area of Inner Mongolia increases the nutrients and fungal richness in the rhizosphere soil, improving the stability of the soil environment. Moreover, the cultivation ofH.rhamnoides increases the soil moisture, improving soil and water conservation and contributing to the ecological restoration. This study provides a theoretical basis for biodiversity conservation in the study area as well as for the ecological restoration and sustainable management ofH.rhamnoides shrubland.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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