Study On Water Resources And Agricultural Technology Of Water Saving In Chayouzhong Banner Inner Mongolia

Water resource will become the important resource and the environment factor which puzzles the development of human society. In recent years ,with rapid development of industrial and agricultural production, water resource is short day by day in the arid area and half arid area. The large parts of cultivated land in the north part of our country is lack of water or the water supply is insufficient .Simultaneously .irrigation technology in these parts is backward .and utilization ratio is low. To develop and apply the new irrigation method and water-saving technology becomes the key of solving the contradiction between supply and demand .Chayouzhong Bannner lies in the north foothill of Daqingshan mountain .The natural condition is limited. Terrain is complex .Water resource is seriously insufficient.The author of this paper observe the basic characteristic of water resource in Chayouzhong Banner and discusses the distribution rule of the local surface water and the ground water in space and time and the total quantity of water resource in chayouzhong Banner .analyzed the mining condition of the region water resource and its present situation.The author first stars from the analysis between supply and demand .then proposes a water-saving technology which is suitable to the water resource and soil resource in Chayouzhong Banner .and finally points out the adjustment plan of the agricultural planting structure based on saving-water. The conclusion of this paper is :Chayouzhong Banner belongs to the arid area. The yearly precipitation is 304mm and the distribution in space and time is uneven. 70-80% of the whole year precipitation concentrates between June and September. The quantity of ground water resource is 66 million cubic meter. Now the mining amount is 52 million cubic meter, occupying 78.8% of the able mining amount. The protentiality is not big. The amount of surface water is 42 million cubic meter which has not developed.There is big protentiality.Water-saving agriculture should combine the project measure, the agricultural measure and the management measure, enhancing the utilization ratio and the production in per unit of the soil, fully displaying the agriculture pattern of saving water and its whole and comprehensive benefit, adjusting and optimizing planting structure, promoting the technology to save water. The natural resource should be fully used in the arid area to enhance the grain yield. The optimized management of irrigating water should be applied to the water-saving irrigation in order to make full use of the limited water resource.The author in this paper proposes that we should apply the comprehensive and effective water-saving measures to the decision-making of water-saving irrigation and provide the scientific basis for the sustainable development of agricultural and the use of water resource in Chayouzhong Banner.