中文摘要：

本文以衡阳市44个乡村旅游地为例，基于GIS空间分析技术，利用建立在交通路网基础上的时间成本分析法分析了乡村旅游地的时间可达性，并测算了平均时间成本和空间差异性。结果表明：（1）衡阳市乡村旅游地空间可达性一般，平均可达时间为78．57min，空间可达性出现了由西南向东北转好的趋势；（2）衡阳市乡村旅游地空间可达性差异不大，可达性最好的为衡南县69．96min，可达性最差的为常宁市88．08min，差距在20min之内；（3）造成可达性差异的原因除了当地地形、交通和社会经济等因素外，空间布局是关键，衡阳市乡村旅游地空间分布不均衡，出现了两个高密度区，还有一个呈“带状”分布的乡村旅游地链。最后，在空间可达性研究的基础上为有关部门开发衡阳市乡村旅游提出了优化措施。

英文摘要：

Based on？ the？ GIS spatial？ analysis？ techniques, this paper analyzed the spatial distribution characteristics？ of 44 rural tourisms in Hengyang city and calculated？ spatial accessibility of rural tourism and integrated accessibility of each town in Hengyang eity. Based on the calculation and using Moran;s index, this paper analysis the spatial？ differences of accessibility for each town in Hengyang city. The study found that spatial accessibility of rural tourism in Hengyang city is just so-so. The average accessible time is 78. 57min and the spatial accessibility in Hengyang city presents the trend of increasing from the southwest to the northeast. The difference of accessibility in all of town in Hengyang city is not significant. The best accessible town is Hengnan County, it is 69.96min. On the contrary, Changning County is poor. The difference is between 20 min. The reasons of this phenomenon are terrain, traffic, society economic. Spatial distributing figures of rural tourism in Hengyang city are unbalanced, Appearing two peak district and one rural tourism Chain. Due to the disparities, the paper gives？ an？ opti- mized？ method to developing and protecting rural tourism.