为了更完整地刻画中国大陆地区科学重心的时空演化格局，本文将地理学、统计学和科学计量学的方法应用于我国科技论文的研究，从空间角度定量研究了我国科学产出的时空演化路径和空间分布特征，最后得到几点促进我国科学技术均衡发展的政策启示。

In order to fully describe the spatial-temporal evolution pattern of the scientific center of gravity in China, this paper discusses scientific output temporal evolution and spatial distribution characteristics through scientometrics ,statistics, geography and ecology methods,and finally get some policy implications to promote the balanced development of science and technology in china.

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