Study on the Effect of Understory Planting Edible Fungi on Soil Carbon Content of Different Forest Types
This study selected pine forest,mixed pine and broad-leaved forest,and mixed forest,and conducted correlation analysis on soil carbon after three years of planting Ulmus chinensis.The results showed that the organic carbon(SOC)content in the surface soil of pine forests,mixed forests of pine and broad-leaved trees,and mixed forests was 159.51％,193.77％,and 198.25％of that in the deep soil,while the shallow soil of pine forests was 42.56％and 50.87％of that in mixed forests of pine and broad-leaved trees and mixed forests,and the deep soil was 51.70％and 63.23％,respectively.After planting Ulmus ostreatus in pine forest,pine broadleaf mixed forest,and mixed forest,SOC,soluble carbon(DOC),microbial respiration,amylase and cellulase activities were significantly higher in the shallow layer(0-10 cm)than in the deep layer(10-20 cm).The content of microbial carbon(MBC)in the shallow soil of pine forests and mixed forests was basically the same,with pine forests accounting for 104.65％of mixed forests.Deep MBC was 46.64％of shallow MBC.Both pine forests and mixed pine forests were significantly lower than mixed forests,with a difference of at least 1.2 times in the deep layer and 1.5 times in the shallow layer.There was a significant correlation between SOC,DOC,MBC,microbial CO2 and soil urease,soil amylase and cellulase activities.
万方数据
维普
