Based on the research progress on transgenic plants at home and abroad in recent years, combining the three major factors to maintain ecological balance, namely species composition, environmental factor and information system, the paper elaborates the impact of transgenic plants on environmental ecological balance.

Government's responsibility in the game between ecological balance and social development;

Relations retween exploitation-utilization of water resources and oasis evolution and ecological balance in tarim Basin;

Finding out the problems in protecting ecological environment and the research & maintenance of ecological balance with scientific outlook can develop the scientific and democratic spirit of students.

The aim of ecological protection in expressway is to maintain the ecological equilibrium,reduce the losing of water and soil,strengthen the base,beautify the environment and lessen the optical iredness.

It plays an important rote in maintaining ecological equilibrium and hence forms an important mechanism in which the nature and stability of different systems can be maintained and the equilibrium between ecological systems and enviorments.

It mainly includes that man should start from practice and, by dialectical thinking, grasp the relations between man and nature, the relation between natural ecological system and social system is a dialectical unity, and man should make efforts in keeping ecological equilibrium so as to promote the harmonious development of society and nature.