区位效益

并对岛城的空间区位与效益进行初步分析并提出岛城的推进措施。

Has an analysis about its spatial position and efficiency .

在对商圈分析的研究中，作者主要是探讨如何运用GIS构建商圈分析模型，从而为商业企业家能够科学、合理地分析市场需求并选定商业企业区位，提高经济效益，提供科学的方法。

In the part of the application of GIS in trade area analysis , this paper mainly discusses how to use GIS to develop a trade area analysis mode to supply efficient tool for the enterprisers in the site selection decision-making .

土地定级与估价是城市地产评估的两个方面，都是对城市土地利用适宜性和土地价格的评定，是以城市土地区位和土地使用效益的集聚程度及空间分布规律为依据。

Land gradation and price evaluation , the two aspects of urban land estate evaluations to land use suitability and land price in accordance with urban land location and agglomeration extent and spatial distribution Laws of land use benefit .