Influences of Adding Needle Mushroom Edible Fungi Residues on Vegetation and Soil Enzyme Activity of Sandy Soil in Northwest Sichuan
In order to reveal the effects of edible fungus residue on vegetation,soil organic carbon and enzyme activities of sandy soil,sandy soil was sampled in the northwest Sichuan as research object by five point sampling method.The results showed that the treatment of mixing 5 kg/m2 edible fungus residue in soil (F1),mixing 10 kg/m2 edible fungus residue in soil (F3) and mixing 15 kg/m2 edible fungus residue in soil (F4) could significantly increase vegetation coverage and height,biomass,soil water content,organic carbon and enzyme activities,and decrease the soil bulk density.Compared with CK,the treatment of F4 increased vegetation coverage and height,biomass,soil water content,organic carbon and enzyme activities by 272.20％,144.51％,228.85％,616.46％,93.25％,135.90％,129.22％,154.41％,99.88％,115.03％ and decreased the soil bulk density by 39.04％.It indicated that the mixing of edible fungus residue and soil had a remarkable effect on vegetation,soil physicochemical properties and enzyme activities.The treatment of F2 could increase soil organic carbon,cellulase,amylase,invertase and polyphenol oxidase activity compared with the CK,but it was significantly lower than F1,F3 and F4.This result indicated that the effect of cover the soil was better than that of edible fungus residue mixed application.Correlation analysis showed that the SOC,below biomass and enzymes activities were obviously positive correlation(P＜0.01).
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