Department of Agriculture, Forest, Nature and Energy (DAFNE), University of Tuscia, Via San Camillo de Lellis, I-01100 Viterbo, Italy.
'Sapienza' University of Rome, Department of Architecture and Project, Via Flaminia 396, I-00196 Rome, Italy.
Sci Total Environ. 2016 Mar 1;545-546:329-39. doi: 10.1016/j.scitotenv.2015.11.170. Epub 2015 Dec 31.
The present study investigates changes in the use of land caused by the expansion of an informal city in the Mediterranean region (Athens, Greece) and it proposes a simplified methodology to assess selective land take at the scale of municipalities. The amount of land take over twenty years (1987-2007) for cropland, sparsely vegetated areas and natural land was compared with the surface area of the respective class at the beginning of the study period (1987). Indicators of selective land take by class were correlated with socioeconomic indicators at the scale of municipalities to verify the influence of the local context and the impact of urban planning on land take processes. Evidence indicates that urban expansion into fringe land consumes primarily cropland and sparse vegetation in the case of the Athens' metropolitan region. Cropland and sparse vegetation were consumed proportionally more than the respective availability in 16 municipalities out of 60. Agricultural land take was positively correlated with population density and growth rate, rate of participation to the job market and road density. Sparse vegetation land take was observed in municipalities with predominance of high density settlements. As a result of second-home expansion in coastal municipalities, natural land was converted to urban use in proportion to the availability in the landscape. Urban planning seems to have a limited impact on selective land take.
本研究调查了地中海地区（希腊雅典）一个非正规城市扩张所导致的土地利用变化，并提出了一种简化的方法来评估市镇规模的选择性土地占用。将 20 年（1987-2007 年）的耕地、稀疏植被区和自然土地的土地占用量与研究初期（1987 年）各分类的土地面积进行了比较。通过市镇规模的社会经济指标，对各分类的选择性土地占用指标进行了相关性分析，以验证当地背景的影响以及城市规划对土地占用过程的影响。证据表明，在雅典大都市区，城市向边缘土地的扩张主要消耗了耕地和稀疏植被。在 60 个市镇中有 16 个市镇，其耕地和稀疏植被的消耗比例超过了各自的供应量。农业土地占用与人口密度和增长率、参与劳动力市场的比例以及道路密度呈正相关。在以高密度住区为主的市镇中，稀疏植被土地占用。由于沿海市镇的第二居所扩张，自然土地按景观供应比例转化为城市用途。城市规划似乎对选择性土地占用的影响有限。
