机译:冀北山区森林草原交错带土壤节肢动物的群落结构和季节性变化
Institute of Mountain Hazards and Environment CAS Chengdu 610041 China;
Graduate University of the Chinese Academy of Sciences Beijing 100039 China;
Agricultural University of Hebei Baoding 071000 China;
Hebei North University Zhangjiakou 075000 China;