SRP082252 PRJNA338733 soil metagenome Raw sequence reads In order to identify the structural succession of soil fungi community during long-term cotton continuous cropping and its relationship with continuous cropping obstacles in Xinjiang area, this experiment used high-throughput sequencing for the comparative analysis of the composition of soil fungil community structure of cotton root zone in this area, under the conditions of different years of cotton continuous cropping within 30 years and crop rotation soil metagenome