Characteristics and seasonal dynamics of the soil arthropod community in Gannan section of the Daxia River wetland
For understanding the characteristics of structure,diversity and seasonal dynamics of soil arthropod community in Gannan section of the Daxia River wetland,an investigation was conducted at six plots in spring,summer and autumn with field sampling method.It is found that (1) a total of 35 groups and 8 743 soil arthropod were captured,including 2 743 large-size ones and 6 000 small/medium-size ones,which belong to 3 classes,9 orders and 33 families.Large-size soil arthropod accounts for 35.52％ of the total,small/medium-size soil arthropod accounts for 64.48 ％ of the total.The dominant groups of large-size soil arthropod include Chironomidae and Doilchopodidae; small/medium-size soil arthropod include Sejidae,Trombidiidae,Isotoma and Proisotoma; (2) There are significantly seasonal variation in the composition and individuals of soil arthropod community,and the sequences of seasonal dynamics of groups and individual number of the soil arthropod are characterized by autumn ＞ summer ＞ spring; (3) The vertical distributions of the group and individual density in a soil profile are characterized by concentration in surface in the depth range of 0 ～ 5 cm and decline with depth.These results will provide useful data for ecological study of soil arthropod in arctic-alpine wetland.
river wetlandsoil arthropodcommunitycharacteristicsseasonal dynamicsGannan
NETL
NSTL
万方数据
维普
