中文摘要：

利用GIS手段对四普、五普数据进行处理，深入剖析了20世纪90年代大连城市人口空间分布变动形式。1990年代，大连人口分布变动模式为集聚中有扩散，以集聚为主，仍处于城市化阶段。1990-2000年，中心城区、近郊区人口绝对数量增多、密度增大，远郊区人口绝对数量减少，密度下降：人口正在向中心城区的“中间地带”集聚；人口重心向西南方向移动，位移较大；从人口集中指数来看．大连市分布很均匀：通过对1990年和2000年大连市中心城区人口密度进行模拟，二次函数Quadrafte：T=b0＋b1r＋b2r2为最优模型，该模型较好地反应了大连市中心城区人口密度分布趋势。

英文摘要：

This article analyses deeply the urban population distribution changes of Dalian in the 1990s by GIS through the fourth, the fifth census. The results show that： In the 1990s, Dalian model of the population distribution changes in the concentration of proliferation, mainly to gather. Specific performance as the central core area of the city, the marginal increased in the number of absolute population and density, and the absolute number of rural areas to reduce and density decreased. By Quanceng distance it can be seen： The population is concentrated in Dalian City Intermediate Quaneeng , population growed largest in 10-20 Quaneeng. Population gravity center obtained by population moved in the southwest direction of a large displacement. Through simulation of centre population distribution in the 1990 and 2000 in Dalian city, Quadratic：Y=b0＋b1r＋b2r^2 for the optimal model, better reflects population density -distribution trends of the center of Dalian.