The use of GIS for monitoring and predicting urban growth in East and West St Paul, Winnipeg, Manitoba, Canada
The use of GIS for monitoring and predicting urban growth in East and West St Paul, Winnipeg, Manitoba, Canada
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DOI：
10.1006/jema.2002.0596
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发表时间：
2002-11-01
影响因子：
8.7
通讯作者：
Hathout, S
中科院分区：
文献类型：
--
作者：
Hathout, S
加拿大的大部分城市增长发生在城乡边缘。加拿大城市人口的日益分散是由于离心力将城市居民从郊区吸引到周围的远郊社区。大多数加拿大城市中心都位于优质农业用地上。郊区的扩张吞噬了大量较好的农业用地。温尼伯市周边的增长就是一个很好的例子。温尼伯的城市范围内有东圣保罗和西圣保罗的乡村自治市。本研究的目的是利用 1960 年和 1989 年拍摄的航空照片和地理信息系统 (GIS) 进行数据库分析，调查城市增长对这些 RM 农田的影响以及两个城市的城市增长速度。研究发现，1960 年至 1989 年间，东圣保罗的城市化率（从 10(.)14% 到 43(.)75%）高于西圣保罗（从 7(.)36% 到 23(.)57%）。使用马尔可夫概率链分析的增长预测表明，东圣保罗今后的增长率将低于西圣保罗。研究发现，这两个地区的城市化率与多伦多等其他主要城市周边地区相当。城市土地利用类别增幅最大的地区是现有远郊住区及其周边地区。研究发现，大多数城市化发生在最肥沃的土壤上。 (C) 2002 Elsevier Science Ltd. 保留所有权利。
Most urban growth in Canada occurs in the urban-rural fringe. The increasing dispersal of the Canadian urban population is due to centrifugal forces pulling urbanites past the suburbs into the surrounding exurban communities. Most Canadian urban centres are located on prime agricultural land. Exurban sprawl devours an inordinate amount of the better agricultural land. The growth around the city of Winnipeg is a case in point. Within Winnipeg's urban field are the rural municipalities of East and West St Paul. The objective of this study is to investigate the impact of urban growth on the agricultural land of these RMs as well as the rate of urban growth in both Municipalities based on database analysis using aerial photographs taken in 1960 and 1989 and Geographic Information System (GIS). East St Paul was found to have a higher rate of urbanization (from 10(.)14% to 43(.)75%) between 1960 and 1989 than West St Paul (from 7(.)36% to 23(.)57%). The growth prediction using Markov probability chain analysis showed that East St Paul will henceforth experience a reduced rate of increase than West St Paul. The rate of urbanization for both RMs is found to be comparable with areas surrounding other major cities such as Toronto. The largest increases in urban land use categories occurred in and around the existing exurban settlements. It was found that most urbanization take place on the most fertile soil. (C) 2002 Elsevier Science Ltd. All rights reserved.