he paper deals with circumstances of the asiatic migratory locust that occurred during the 1950s to present and analyzes the characteristics of habitat,the changes of natrural condi- tions,the influences on the ecological environment by human activities,and control measures.The main distribution areas of the locust in Xinjiang are the marshes around overflow belt of the preatic water and lakes,and the marshes along wide river valley plain.The rainfall of mountains determines the discharge of river,in turn,i...