The results were showed 58 species of arthropod belonging to 40 families and 35 species of phytophages belonging to 22 families;
共调查到杨树林节肢动物物种58种，分属于40科，其中植食类35种，分属于22科；
2
These provided theory foundation for SPM. 1 The arthropod community was divided into four sub-communities, which were phytophages, predators, parasitoids and neutralities.