Effects of Mixed Decomposition of <i<Pinus sylvestris</i< var. <i<mongolica</i< and <i<Morus alba</i< Litter on Microbial Diversity

<i<Pinus sylvestris</i< var. <i<mongolica</i< is widely planted in China as a windbreak and sand fixation tree. To improve the current situation of large-scale declines of forested areas planted as <i<P. sylvestris</i< var. <i<mongolica</i< monoculture...
Ausführliche Beschreibung

<i<Pinus sylvestris</i< var. <i<mongolica</i< is widely planted in China as a windbreak and sand fixation tree. To improve the current situation of large-scale declines of forested areas planted as <i<P. sylvestris</i< var. <i<mongolica</i< monocultures, we investigated the biological and microbial effects of stand establishment using mixed tree species. The interactions during the mixed decomposition of the litter and leaves of different tree species are an important indicator in determining the relationships among species. In this experiment, a method of simulating the mixed decomposition of <i<P. sylvestris</i< var. <i<mongolica</i< and <i<Morus alba</i< litter under <i<P. sylvestris</i< var. <i<mongolica</i< forest was used to determine the total C, total N, and total P contents in the leaf litter, and the microbial structures were determined by using Illumina MiSeq high-throughput sequencing. It was found that with samples with different proportions of <i<P. sylvestris</i< var. <i<mongolica</i< and <i<M. alba</i< litters, the decomposition rate of <i<P. sylvestris</i< var. <i<mongolica</i< × <i<M. alba</i< litter was significantly higher than that of the pure <i<P. sylvestris</i< var. <i<mongolica</i< forest, and the microbial community and composition diversity of litter in a pure <i<P. sylvestris</i< var. <i<mongolica</i< forest could be significantly improved. The possibility of using <i<M. alba</i< as a mixed tree species to address the declines of pure <i<P. sylvestris</i< var. <i<mongolica</i< forest was verified to provide guidance for pure <i<P. sylvestris</i< var. <i<mongolica</i< forests by introducing tree species with coordinated interspecific relationships and creating a mixed forest. Ausführliche Beschreibung