Study on Dynamic Space Structure of Groundwater on Land Use
|Keywords||ground water land use finite element method back-propagation neural network|
Since the 20th century, in scientific and technological progress, humans began to large scale of using various engineering measures to control the flow of water, building water conservancy, and bringing along with the progress of drilling technology with large range groundwater, irrigation, water supply.Power generation and navigation and all kinds of water are developing rapidly growing. Water resources has became serious factor of our social and economic development. More than 30% area in our country, regional economic is developing and the local water supply doesn’t match. The land use space layouting for water resources allocation is a very important problem. Based on the land use, the spatial distribution of water resource influence, Especially the influence of groundwater spatial structure is Both hydrology research question, but also the land use planning layout very concerning field.This paper analyzes the existing material and research results,and systematically study HuangHua hydrogeological conditions of groundwater resource distribution. Groundwater resources distribution in the study area is calculated and on divisional. Land use of water around the spatial distribution of influence, the main research contents of paper are as follows:(1) Through collating the landscape, soil, hydrology, meteorology and other data sorting grasp the research area natural geographical conditions,hydrological and meteorological conditions and analysis the land use structure characteristics and existing problems.(2) Through the investigation,shallow,deep water, and groundwater depth data, with the aid of the ArcGIS divide the wuchi and calculate the quantity of groundwater andexcavitaon.(3) Using the finite element method to simulate the groundwater table, and analysis the present situation land use status graph line and reflects the superposition.Groundwater resources and land use type space distribution and configuration. Using the BP neural network model to plan by 2020, dynamic groundwater level in simulated forecast.The construction land use controling zoning maps are united by 2020 is analyzed and the land use status of the groundwater under spatial structure prediction with intuitive analysis, simulation maps with water and land use type the bad or good degree.(4) Through the comparison of land use types, it is concluded the influence of groundwater resources, and accorded to the distribution of HuangHua groundwater resources and the water of regional land resources.The utilization structure, direction in the space and time scales delaminate scheduled, design, combination and layout, in order to improve the land use efficiency and benefit, maintain the balance of soil and water ecological system, and realize the sustainable utilization of land resources.