宁夏人工甘草田节肢动物群落结构及多样性研究

Study on Community Structure and Diversity of Arthropod in Licorice Farmland in Ningxia

采用系统分析方法研究了甘草田节肢动物的物种构成、群落丰富度、均匀度、多样性、集中度及其时间动态和主要种群的垂直结构,结果表明,银川地区甘草田优势种为甘草萤叶甲(Diorhabda tarsalisWeise)、黄草地螟(Loxostege verticalisLinnaeus)、黄直条跳甲(Phyllotreta vittulaRedtenbacher)、蚜虫类(Aphids)、盲蝽类(Mirids)等.甘草田节肢动物群落及各营养层结构特征呈规律性的变化,其中,基位物种营养层的个体数量随时间变化趋势与节肢动物总群落一致.

The arthropod species and its community structure in Glycyrrhiza uralensis farmland were investigated in 2003 in the suburb of Yinchuan, Ningxia, China. Then this paper analyzed the species composition, community dynamics and population dynamics of the arthropod. The results showed that the dominant species of pest in licorice farmland were Diorhabda tarsalis Weise, Phyllotreta vittula Redtenbacher, Loxostege verticalis Linnaeus, Aphids, and Mirids etc. There were dynamic changes of arthropod community in the farmland throughout the year, of which the changing trend of the individual numbers of basal species was same as the change of arthropod community.