基于GIS的云南省土壤环境质量调查评价分析系统研究.docVIP

基于GIS的云南省土壤环境质量调查评价分析系统研究 摘要 随着我国经济的快速发展，我国环境污染日益严重，被誉为“大地母亲”的人类赖以生存的土地资源污染形势十分严峻。然而，相对于大气污染和水污染，土地污染更难察觉，闻不到，看不见，治理难度更大，且污染后恢复周期更长。因此，对土壤环境污染的监测，数据的采集与分析，及时了解污染状况，对于防治土壤污染尤为重要。 根据国家环保部下发的《关于开展全国土壤污染状况调查的通知》，云南省目前已经完成了全省调查的布点、采样、样品制备、检测项目分析的工作。为了更好地完成全省1718个采样点，73背景点全球移动通信系统MSP430F147单片机，进行二次开发，实现对土壤环境污染数据的远程无线采集和监测。本文结合前沿的地理信息系统（GIS）技术和管理信息系统GIS 土壤环境 空间数据库 GSM 远程监测 数据采集 Abstract With the rapid economic development of our state, The environmental pollution in China is becoming serious increasingly. Soil resources, human’s subsistence roots and been regarded as the mother earth, is contaminated extremely critical.Compared with air pollution and water pollution, soil contamination is much more difficult to detect.It’s hard to be perceptible and needs longer cycle to recuperate. Therefore, soil pollution monitoring, data collection and analysis, are particularly important ways for soil pollution prevention. According to the “Inform on the National Survey of Soil Pollution issued by the State Environmental Protection, Yunnan province has completed the stationing, sampling and analysis of test items tasks by now. In order to finish the survey of soil physical chemical Properties, inorganic pollution and organic pollution from 1718 sampling points,73 reference sampling points across the province, including three types of 61 samples analyzing items,it needs a special system to verify,analyse and manage these sampling data.The special system can analyse these data in accordance with evaluation indicators, and then do spacial anlysis.It can output the statistical and assessment outcomes, kinds of statistical tables and graphs, map sets. It can monitor the information of sampling points in the wild and unmanned areas in real-time. In this thesis, a variety of monitoring data of environmental quality are analysed and digitized . In order to implement spatial analysis,all of these data should be processed into spatial databases. Meanwhile, a scheme based on the Global Sy