镉对高山松和高山栎盆栽中土壤动物多样性的影响OA

In order to understand the effect of cadmium-contaminated soil on soil animal diversity after planting different alpine woody plants.In this study,three concentrations of metal cadmium were used to treat the soil.After 90 days of planting Pinus densata and Quercus aquifolioides,soil animals were separated by dry funnel method.A total of 2 phyla,7 classes and 20 orders of soil fauna were captured,among which Acariformes and Collembola were the dominant groups.The results showed that the species richness and the number of soil animals in the potting soil of Quercus aquifolioides were higher than those in the potting soil of Pinus densata.After the soil was treated with cadmium,the structure of soil animal community tended to be simple,and the number and diversity of soil animals decreased.The study found that the number of Collembola and Acariformes in the soil animal community did not change significantly after a certain concentration of metal cadmium treatment,indicating that Collembola and Acariformes animals may have a certain tolerance to heavy metal cadmium.