Use Efficiency Of Agriculture Water Resources In Western Jilin Province

Water is a valuable resources are inseparable from human existence and industrial and agricultural production,water quality and quantity of serious constraints to regional socio-economic sustainable development. Groundwater is very valuable material resources, because years of accumulation,the amount of compensation is limited.For a long time, the frequency of droughts to increase in Jilin Province due to global climate change.lt has expanded each year, resulting in groundwater exploitation of intensified in the central and western regions.It is widespread occur that random mining and disorderly exploitation of groundwater because groundwater valuabled and no price.It lead to not only the sharp drop in the amount of groundwater resources and falling water tables but also a lot of groundwater is waste and local pollution, in particular, in the West of Jilin province. As we all know, groundwater is an important source of support economic development in the western society.Agricultural production must rely on groundwater in most regions except along the river extraterritorial. Groundwater can supplement the needs of the growth. In recent years, groundwater resources by the predatory exploitation because of successive years of drought in the Western region. The free flooding irrigation methods still is traditional and backward, along with " SLIM rice " widening of the area. Groundwater level decline year by year.According to the survey, groundwater fell from three meters by the early1990s to twenty meters in rich region of the Bai cheng city. The general area has been reduced to less than50meters. There is the place to drill wells need to hit more than100meters deep. Groundwater resources is drastically reduced that we have used the water of the descendants. Because groundwater valuabled and no price that not only difficult to promote water-saving technologies, but also lead to the unrestricted use of water resources and a lot of waste. If you do not attach great importance, it will inevitably lead to the depletion of groundwater resources, not only affects the economic development of the western region, but also threaten the human existence. Therefore, the protection of the western region of groundwater resources is imminent. It should be to establish the mechanism of groundwater compensation for the use and agricultural water subsidies.Firstly,this article under control at home and abroad study on agriculture water resources utilization efficiency evaluation on the basis of the status quo, for agriculture water resources and agricultural water use efficiency, and other related concepts are defined, on the externality of water resources utilization, water efficiency, water right system and sustainable use of resources and other related theoretical basis for in-depth study and research, detailed research on theoretical basis of agricultural water resources and efficiency, evaluation method, and more.Secondly, with present situation of development and utilization of water resources in the West of Jilin, irrigation techniques for the study area, the management system and the evaluation of three aspects of agricultural water resources management system, the use of factor analysis, based on the principle of index selection, select the scientific and rationalindicators. These21indicators factor, such as agricultural irrigation water use, the proportion of agricultural water, agricultural output per cubic meter of water, per capita possession of water resources, mu water resource possession, utilization of water resources development, irrigation rate, etc. Compare agricultural water use efficiency in agriculture in Western region of Jilin province with other regions in the province of agricultural water resources utilization efficiency for landscape evaluation.at the same time, from a qualitative point of view longitudinal evaluation of the area of agriculture in Jilin province water resources utilization efficiency nearly five years.Ultimately, the draw of West Jilin agricultural water use efficiency is very low. Proposed to promote other water conversion to agricultural water use, improved irrigation techniques and innovative management system, strengthen the management of water resources and improve the construction of water resources management in the legal system, the progressive realization of surface water and groundwater joint optimization of the deployment and reasonable to protect the wetland strengthen the conservation management of water and vigorously develop water-saving agriculture and the proposed increase in western agricultural water resource utilization in Jilin.