Abstract:

The principles to give priority for ecosystem protection and natural repair and to repair artificially based on the objective rules are insisted on.The method is as follows.(1) The nature reserve districts are set up in order to enhance management,protect endangered species and increase biodiversity for typical meaning ecosystem.(2) Utilizing selforganized function，the ecosystem is repaired naturally by relieving pressure load for middle and light injured ecosystem.(3) The artificial measures are used to repair or rebuild serious injured ecosystem by comprehensive administration for small basins of the ecosystem harmed seriously.The strategies are selected scientifically as followsl.(1) The vegetation community system is repaired at first,and then the animal and other ecosystems are recovered step by step by creating conditions to utilize the capacity of selfrecover and selfsuccession of ecological system.(2) The ecological rehabilitation is combined with the development of ecological economy to increase revenue and encourage enthusiasm to participate.The percentage of forest cover in Poyang Lake Basin increase from 31.3% to 5832% by the ecological rehabilitation after twenty years efforts.The feasible technical route is explored  as follows.(1) The status and reasons of ecological system injured are found,and impersonality rules including growth and succession of various kinds of ecosystems are discovered by comprehensive scientific investigation.(2) The effective rehabilitating measures，methods and patterns are found by studying process and mechanism of bionomics of the ecological rehabilitation.(3) The science experiment bases are set up firstly as the samples to popularize.(4) The great projects of ecological rehabilitation are pushed systematically.