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目的：讨论宁夏同心县城乡居民牙周健康现状。方法：在宁夏同心县的城乡居民中使用多阶段分层等容量随机抽样的方法分别选择1152例城市居民，1085例乡村居民，根据年龄分类，12~34岁的居民有680例，35~44岁居民有790例，65~74岁的居民有767例。结果：城市居民的牙周健康（9.20%），牙结石（6.86%），牙龈出血的检出率（5.03%）与乡村居民相比（6.36%），（7.65%），（6.08%），差异有统计学意义（P<0.05）。12~34岁的牙周健康（20.29%），牙结石（51.47%），牙龈出血(40.59%)等检出率与35~44岁(1.89%)，(87.72%)，(72.03%)，65~74岁(0.91%)，(76.79%)，(55.02%)，相比，差异有统计学意义（P<0.05）。结论：在宁夏同心县城乡居民的牙周健康调查中发现，城市居民的牙周健康情况略优于乡村居民，大于35岁成年人的牙龈炎患病率较高，牙周健康的情况小于12~34岁的人群。

In the 21st century, weather and atmospheric pollution data warehouse system is a new generation of meteorological information storage management system, can greatly improve the existing huge amounts of meteorological and air pollution data's management and support for business research. Meteorological and air pollution data warehouse system is based on B/S architecture system, using OpenLayer as front-end WebGIS framework. The backend is supported by powerful RDBMS ORACLE database. ETL process is implemented by using PL/SQL and Java language. Business logic is implemented by Java language. Based on this, the meteorological and air pollution data warehouse system based on WebGIS is built. The system can share data in the form of visible, can display and manage data. At the same time, using the system of on-line analytical processing technology can help staff to make the decision to get useful information from data warehouses and to provide scientific and effective decision in a timely manner.

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