Study On Containing Of The Covariate In Groundwater Management Model

Water resources essential to human development of valuable human resources, its social progress and economic development are of great significance. As the population growth, social and economic development, a growing shortage of underground water resources constraints of human development, especially in the development of groundwater resources as a result of the process caused by a series of eco-environmental problems, rational exploitation and protection of water resources will enable us to have a human face major problems. Groundwater management and the continuous research and improvement of water resources development, protection and utilization and ecological protection of the environment has an important significance. Therefore, this paper contains the covariate model for groundwater management. When the exploitation of groundwater resources, groundwater level changes in the exchange of groundwater with the changes in the amount of change. This raises the notion of covariate. That is, groundwater and other water bodies the size of the exchange capacity strictly depends on the meeting schedule point of the high and low groundwater levels can not be given artificially, with the natural attributes, such as Stephen traffic, river water and groundwater exchange capacity, excretion drains, diving evaporation volume, the volume of such exchange as the covariate. Covariate with the groundwater management model management model to improve the accuracy of the calculation has an important role.In recent years, water resources development in order to prevent inappropriate use of negative-effective, widely carried out in water resources management model for research work, has developed a series of management models such as hydraulic, economic, and other water quality to address water resource development problems in the rational development and utilization of water resources has played a positive role. But at the same time also noted that the management of the establishment of the current model in terms of management, or in the application of practice and modeling are still some lack of technology, resulting in the development of water resources management model and practical applications there is a certain gap between the real reach with in guiding the development and utilization of the few real, it is not possible for the production department or the decision-making departments and reliable scientific basis for decision making. How to better address the ground water with other water bodies in exchange for the amount of the issue of change to improve the accuracy of the management model for the rational development and utilization of water resources and protection of water resources has provided an important theoretical significance, therefore, come to a conclusion in this article.1. Comparative analysis in order to contain the groundwater management covariate model, this paper established a non-homogeneous isotropic two-dimensional non-steady groundwater flow system in the groundwater simulation model and management model, that is, the exploitation of groundwater resources, groundwater and other water bodies in exchange for volume remains unchanged, and the exchange capacity with the water table does not change. Finite element method to solve the discrete simulation model, the use of embedded in law and in response to the coupling matrix containing covariate did not consider the groundwater management model.2. Analysis of the volume of artificial fill mining, the groundwater level covariate and feed each other between the covariant relations, the establishment of groundwater and other different types of exchange relationship between the volume of the mathematical expression, and its coupling to the groundwater containing covariate model through finite element Galerkin method for discrete and over-relaxation iteration method for solving discrete equations after.3. Embedded in law and through the response matrix containing covariate on the groundwater management model for the objective function and constraint conditions of coupling, when the artificial extraction of groundwater, the groundwater head is constantly changing, the exchange of groundwater bodies at this time also the ever-changing, thus changing the size covariate.4. In order to verify the covariate with the groundwater management model for the correct and rationality, the paper design with a human hypothetical groundwater system, and does not contain covariate covariate under consideration, were embedded in law and in response to the establishment of a two-matrix method species under the conditions of the groundwater management model. LINDO software to solve the groundwater management model for these two. Without taking into account the unit Covariates node contains the water table than the model covariate in the lower level, this is because the covariate for the supply type, when the exploitation of groundwater, the groundwater level decline in groundwater level resulted in lower hydraulic gradient become larger, thereby increasing the amount of groundwater recharge, which also resulted in declining groundwater levels and not that great; Association for the excretion of type variables, in the exploitation of groundwater, the groundwater level decline in the same, the lower the water table has led to the end point of the hydraulic gradient has become smaller, which reduces the amount of groundwater discharge to the same on the cause of the decline in groundwater and not so great. Solving this model results in general compared to more accurate calculation, a more rational management model. Have been the ultimate correctness and rationality of the covariate with the groundwater management model.