中文摘要：

针对传统的土地适宜性分析方法忽略景观水平生态过程的问题,本文将景观连通性理论应用于土地适宜性评价方法的不同阶段,以达到优化城市生态系统的目标。首先选择影响生物水平流动的主要要素作为评价因子,应用于长沙市望城区滨江片区,确定案例区的土地适宜性评价结果,建构城市土地景观过程阻力评价体系。通过水文连通性分析方法及分布式水文模型确定案例区的潜在雨水生态廊道,将之与土地适宜性评价结果进行加权叠加,根据评估结果,提出案例城市土地适宜性评价的优化方案。结果表明：景观连通性方法适用于传统城市土地适宜性评价方法的改进以及评价结果的优化。

英文摘要：

In targeting the problem of ignoring horizontal landscape ecological processes in traditional land-suitability analysis method, the authors applied the landscape connectivity theory to the different stages of land suitability evaluation, in order to optimize ecosystem in urbanization. This research applies hydrological analysis tools in ArcGIS to work out an analytical framework for optimizing the suitability analysis technology in urban ecological sensitive areas. In a case study of the riverside area in Hope City District, Changsha City, main factors that affect the biological level flow and the land-suitability are selected and weighted to build up a resistance evaluation framework in urban landscape process. Secondly, a water running-off ecological corridor system is defined through the hydrological connectivity analysis and produced a hypothetical hydrological model. And then, the model is overlapped with the output of land suitability assessment to improve the results. The research indicate that the landscape connectivity method can contribute to the optimization of traditional urban land-suitability assessment throughout the method introduced.