ecological造句211. The role and function of microbiotic crust in ecological restoration of arid and semiarid regions of China were discussed.
212. Based on the relative theories of biomathematics , a new approach to trend extrapolation of time series of ecological footprints is proposed in this paper.
213. The region of west Inner Mongolia lies in arid, semi-arid, terribly arid climatic zone, and the ecological environment is very frail.
214. The essential elements within the system and the interaction of intersystem form the ecological system, economic system and social system, which produce composite results with the intervention of man.
215. Ecological resurgence is attributed to pesticides weakening natural control systems whereas physiological resurgence refers to pesticide-induced stimulation of pest reproduction or hormesis.
216. Fresh progress was registered in energy, resources, ecological and environmental conservation.
217. The project will result in a large ecological arboretum combining leisure, entertainment and humanistic landscape together.
218. The minimum instream ecological water demand is the epiboly value of each instream flow quantity.
219. Therefore, we must allow full play to the function of law during the process of developing ecological civilization, and strengthen the environmental legal system constantly.
220. Therefore, it can not cause a threat on ecological environment to use lindane in partial control of crop insect pest in China.
221. River is a bridge between terrene and ocean. It is very important to study the flux of river active material flowing into the sea for current ecological geochemical evaluation.
222. The ecological laws, such as seedling law, growth peak and so on of Echinochloa crusgallis were studied, which provides evidence for application of weeding with chemicals.