中文摘要：

通过分析甘肃省各县区1991—2011年人口和GDP数据，计算各县区的人口地理集中度、经济地理集中度、不一致指数和Moran’sI指数等，综合运用SPSS、GeoDA和ArcGIS软件，对甘肃省人口、经济的空间分异和关联性进行研究，结果表明：甘肃省人口与经济空间分布均呈西北低东南高，高值区围绕市区集聚的特点；甘肃省人口经济的地理联系密切，地理分布一致，但是两者之间又存在一定的偏差性，表现在人口地理集中度的空间差异远大于经济地理集中度的空间差异；人口与经济匹配关系在空间分布上由分散转变为集中，总体来说不断趋于协调；从相关指数来看，甘肃省大部分地区人口经济在时间和空间上具有较弱的相应关系。

英文摘要：

The correlation between population and economy and their changes are very important in the regional studies. Through the analysis of Population and GDP data in Gansu province during 1991-2010, based on the meth- ods of geographic concentration, inconsistency index and Moran＇s Index, etc, their spatial differentiation and correla- tion are analyzed in Gansu Province. The following conclusions are found as follows： （1）The spatial distribution of on and economy in the southeast is higher than that in the northwest. Thosehigher concentration areas are distributed around the cities and this trend is strengthening. （2）The geographical contact between population and economy is compact with a consistent geographic distribution, but there are some de- viations between them. While the diversity of regional economy is reducing, the gap of population size is increasing. （3） According to inconsistency index, there are three types of relationships between population and economic devel- opment in the study area. The matching type of population and economy is changed from dispersive type to central- ized one. The number of counties is changing in various types of region. The coordinated development area is con- stantly expanding. In generally, their relationship goes towards coordination. （4）According to the Pearson related in- dex and spatial autocorrelation index, there is less temporal and spatial correlation between population and economy. And the corresponding relationships are changed from positive correlation to negative correlation. The number of counties is adding in the hot and swelling area. In other words, the area which has higher level of aggregation of pop- ulation and economy is expanding. The spatial differentiation and association changes are affected by many factors, including the physical geography condition, the ecological and environmental quality, industrial structure, etc. On that basis, several tactics are put out of development of the northwest in Gansu Province.