STRUCTURE CHARACTERISTICS OF SOIL ANIMAL COMMUNITY IN THE YELLOW RIVER DELTA
Structure characteristics of soil animal community in the Yellow River Delta was studied intensively and systematically, and its structure characteristics and succession process were discussed from each decade and different vegetation type as well. Results show that, the geographical environment of the Yellow River Delta is simple, both species number and quantity of the soil animals are poor, average density of animal is less than 10 thousand individuals in the entire region, and only 17 classes or orders of the soil animals are obtained. Mites and Collembola are the dominant groups in all the 11 sampling sites, and they are the only two dominant groups at each site. The annual average A / C value of the whole area is 2.04, significantly greater than 1. A / C values in winter and summer are comparatively larger in the four quarters of the year, indicating that adaption and resistance of mites to low temperature or drought is stronger than that of Collembola. Succession of the soil animal community failed to show obviously along with the pedogenesis years and succession of plant community , and it is necessary to further refine the classification of soil animals.
the Yellow River Deltasoil animalcommunity structurecommunity succession
NETL
NSTL
万方数据
维普
