Abstract: Through analysis on the relation ships between the biological features of oak trees in the tussach silkmoths nursery, the plant structure, silkmoths production course and ecological environment, as well as the damage reasons of nurseries in the whole Liaoning Province, it was considered that tussach silkmoths production had no harm to the ecological environment. The production course of tussach silkmoths is the course of construction, and improvement of ecological environment. Tussach silkmoths industry is an environment protection industry and has remarkable economic, ecological and social benefit. In the mean time, suggestions were given on further enhancing the construction of tussach silkmoths nursery and realizing the sustainable development of tussach silkmoths industry in Liaoning Province.

Key words: CO₂, O₃, Interaction, Chloroplast ultrastructure, Soybean