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中文摘要：
在分析国内外研究现状的基础上，探讨了基于GIS的系统总体设计的目标、原则、结构和系统的功能实现。以河南省镇平县的饮水安全评价与预测为研究对象，依据调查数据，选取预测因子和评价标准，以综合指数评价模型为例，详细阐述了饮水安全评价与预测系统所实现的图文双向查询、空间分析、水质评价与模拟等一系列功能，以实现饮水安全工程规划的空间信息管理和辅助决策支持。
英文摘要：
In order to manage spatial information and support assistant decision-making for project planning of drinking water safety, this paper discusses target, principle and framework of total design and functional realization of assessment and forecast system based on GIS after the analysis of domestic and international study. We choose predictive factors and evaluation criteria according to survey data in Zhenping County of Henan Province. Functions of assessment and forecast realized in this system, for example, interactive enquiries, spatial analysis, evaluation and simulation of water quality, are expounded using comprehensive indices assessment model.
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Analysis of Types and Changes of Village-level Economy in Rural Gongyi City, Henan Province Since 19
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