金华市乡村聚落空间集聚特征的GIS分析研究

以金华市ETM影像及国家1:25万基础地理数据库为主要信息源,经图像识别与实地验证获得乡村聚落的空间信息,并运用GIS空间分析方法对金华市乡村聚落的空间聚集特征作了定量化分析。结果表明:研究区绝大多数乡村聚落在局部空间上聚集;聚落沿水系、道路分布特征明显,距之越远,聚落数目越少;在150 m以下地势较为平坦的盆地底部分布了绝大多数聚落,而在大于150 m的南北两侧的高山丘陵地区乡村聚落分布相对较少;且绝大多数乡村聚落分布在坡度10°以下,乡村聚落随坡度的增加,聚落的分布逐渐减少。

GIS Analysis of Spatial Agglomeration Characteristics for Rural Settlements in Jinhua City

Taking ETM images of Jinhua city and geographical database of China at the scale of 1:250 000 as the major data sources,by judging from the image and investigation on the spot to obtain the spatial information of rural settlements,and by using GIS spatial analysis method to quantitatively analyze spatial agglomeration characters of the rural settlements in Jinhua city.The results showed that major rural settlements are centralized in partial space;most settlements obviously distributes along the water system and the road,when the distance of settlements away from the water system and the road is farther,the number of settlements is less;most settlements locate in the flat terrain below 150 m,while most rural settlements distribute with slope below 10°,the number of settlements decreases gradually as the slop increasing.