| Along with environment hydrology geology question day by day prominent, accurate understanding and portray groundwater system, has become the reasonable development to use and to protect the ground water resources the key. This article uses CAD, MAPGIS and the GMS software unifies, Kunming north market area ground water resources will carry on the present situation simulation and the future to Kunming north changes the tendency forecast; and unified technologies and so on cartography, computer value simulation in this foundation using GMS software spatial analysis ability has realized this region ground water three dimensional visualization. Not only might provide the basis for the Kunming reasonable mining using the ground water resources, moreover will enrich the region hydrology geology system research work and the ground water resources information and the visualization.This article unifies the Yunnan Province natural sciences fund project "the Kunming basin underground (hot) the aqueous system dynamics simulation"the selected topic, selects the Kunming north market area to set an example the land sector, the development system groundwater system three dimensional visualization research.In entire research work process, through Kunming basin in physical geography and region hydrology geology and basin ground water balanced analysis, 200 meters about depths is in the stable streamline above water-bearing stratum to take the value simulation object, generally changes into the non-isotropic isotropic plane two-dimensional flow mix level, will study the regionalization to divide into 3 parameter districts, and has divided 9634 units in 23.44 square kilometer research areas. In the time criterion aspect, considers influences and so on hydrology tendency, manual mining and climatic change, will study the regionalization to divide into 5 stress times, to studied the region the ground-water flow and the region level balance has carried on the simulation. The analogue result and the observation result compare, 9 observation hole mean water level error maximum value 0.74 meter, the vice-error quite is balanced, the system stability is good, indicated constructs the mathematical model and the research area actual situation tally well, therefore adjusts after the model to be possible to satisfy the appraisal and the management need. In the Kunming present situation society, the economical, in the population development speed foundation, will adjust after the model forecast future 5 year subsoil water level changes, and will use GMS to carry on the three dimensional visualization demonstration. The establishment ground water three dimensional visualization had reflected the research area ground water substantive characteristics, has reappeared the ground water water level tendency, the migration rule, can for the phreatic water surface forecast, the resources appraisal and the surface subsidence control provides the scientific basis.In summary, through the visualization engineering research ground water, may obtains separate the people through the geological prospecting and the monitor, the static state, the ground water information with the direct-viewing graph, the image form, reflected its tax saves the condition, the existence condition and the law of motion, and may through underground data and so on rock layer structure, water permeability, porosity calculate its reserves, flow to, the speed of flow, analyzes influence which produces regarding the ground water development or the refilling point, instructs the people to develop the use ground water resources scientifically, causes the humanity and the environment is at the benign interaction condition, creates the condition for Kunming's sustainable development. |
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