中文摘要：

分析丘陵山区都市边缘的农村居民点土地利用空间特征,对于科学认识自然条件与社会经济发展交错影响下的新型农村人地关系具有重要意义。以重庆市两江新区为例,从居民点用地规模特征、居民点空间分异特征、居民点分形特征以及居民点空间格局四方面对农村居民点土地利用空间特征进行了分析。结果表明：两江新区农村居民点用地规模表现出明显的地域差异,在区域内部,受高程、坡度、地质灾害分布、水系、城镇和交通的影响,农村居民点用地表现出较强的空间分异特征,其中有相当一部分居民点的交通及基础设施条件亟待改善;两江新区内农村居民点分形维数介于1.12-1.53之间,由西南向东北方向逐步增大,围绕城市呈现＂扇形圈层结构＂特征,距离城镇越远农村居民点斑块结构越复杂;从居民点空间格局来看,两江新区镇域尺度上的农村居民点呈现出集聚、均匀与随机3种分布状态,图斑尺度的居民点受地形约束总体上呈条带状分布,在此基础上城镇发展的极化作用吸引农村居民点向城镇集中,形成若干聚集区。研究结果可为丘陵地区开展土地整治及模式探讨、土地利用规划筹提供参考。

英文摘要：

Rural residential land is at the core of human-land relationships. Analysis on spatial characteristics of rural residential land use at urban fringes in hilly and mountainous regions helps to understand the rural human-land relationships in rapidly urbanizing areas, but also help to promote the linkage of urban renewal, new area development and rural development. Taking Liang Jiang New Area as an example, in this paper we analyzed characteristics of rural residential land use through 4 aspects, including characteristics of rural residential land use quantity, spatial differentiation characteristics of rural residential land, fractal geometry of rural residential land the spatial pattern of rural residential land. The results showed that the characteristics of rural residential land use quantity existed obvious differences in general. Under the influences of elevation, slope, geological disasters, rivers, urban and traffic factor, rural residential land use quantity also existed certain differences in different locations, and there is a considerable part of rural residential land that needs to be consolidated to improve its natural and regional conditions. The fractal dimension value of rural residential land in Liang Jiang New Area changed between 1.12 and 1.53, and it increased gradually from southwest to northeast. Based on the spatial distribution of those fractal dimension values we can find a pattern of ＂sectorial cycle structure＂. In particular, the farther distance from the city, the greater of the fractal dimension values were, implying that the structure of rural residential land plaque was more and more complicated with increasing distance from the city. On the contrary, under the influence of urbanization, the rural residential land near the city become more and more clear and neat. As we can see from the spatial distribution of the rural residential land in Liang Jiang New Area, at a township scale, the spatial pattern of rural settlements presented three kinds of patterns, such as uniformity, ran