Abstract: Daqing is a typical resourceoriented city and the biggest petrochemical base in China. Aiming at the three problems in the construction of ecocity in Daqing, i.e., desertification, alkalinization and deterioration of grassland, serious environmental pollution by petrochemical production, and neglect of the optimization of urban spatial districts, this paper analyzed the advantages and disadvantages possessed by Daing City, and put forward corresponding countermeasures and concrete steps. Firstly, owing to the serious desertification, alkalinization and deterioration of grassland, it’s necessary to restore and reconstruct grassland ecosystem to highlight the characteristics of Dading City as a grassland-oriented city. Secondly, being a precious resource of Daqing, swamp is needed to be strictly protected, and in the meanwhile, an artificial-natural integrated swamp ecosystem is suggested to be set up to give full play to the multiple service functions of the swamp. Thirdly, because of the serious environmental pollution by petrochemical production, environmentfriendly oil field project is expected to be launched to meet the need of an ecocity. Fourthly, as the optimization of urban opening spatial system is the key to establish eco-city, optimized measures are needed to be taken to build ecohighways, eco-squares and eco-residential districts, to install scenery road lamps, and to construct environment-friendly buildings.

Key words: Oasis agriculture, Cultivation mode, Crop-grass intercropping, Soil wind erosion, Soil moisture