Change of Pattern and Expansion in the Developed Area of Mid-Upper Course of Keelung River Catchment
Resource
地理學報, 49, 023-038
Journal
地理學報
Journal Issue
49
Pages
023-038
Date Issued
2007-09
Date
2007-09
Author(s)
王翠華
Abstract
This study focuses on the spatial and temporal change of developed areas in the mid-upper part of Keelung River Catchment. The evolution of land-use patterns is based on the distribution and change of developed areas in different periods. Specifically, this study includes the following three topics of this study include: (a) the distribution and change of developed areas; (b) the hotspots of developed areas; (c) the relationship between slope inclination and developed area. This study identifies three different periods, including period Ⅰ (1983-1988), period Ⅱ (1988-1995), and period Ⅲ (1995-2004). The rates of increase of developed areas in these three periods are 0.88, 0.41 and 0.33 km^2 per year respectively showing a declining trend. Si-Jhih City of Taipei County and An-Lo, Chi-Tu District of Keelung City are the fastest urbanized areas in the whole study area. The expansion of developed areas in period I was mainly located in hillslope areas. In period Ⅱ, the expansion took place mostly located in Si-Jhih City of Taipei County and An-Lo District of Keelung City with 35% and 25% of total development in the period. Development in the third period was mainly located in the bank area of Keelung River. The low intensity development was replaced by high intensity. Additionally, slopes affected the distribution of built-up areas; more than 90% of built-up areas waere located in the region flatter than slope category Ⅲ. This study provides a quantitative analysis of distribution and evolution of developed areas in the upper part of Keelung River Catchment. It can be the basis for monitoring land-use/cover change in this area. By using aerial photo interpretation, data overlay, case study and field investigation, this study provides a detailed account of changes of built-up areas change and serve as an example for future studies.
Subjects
土地覆蓋與利用變遷
基隆河流域
汐止
坡地災害
LUCC
Keelung River
Sijhih City
slope hazard
Type
journal article
File(s)![Thumbnail Image]()
Loading...
Name
0049_200709_2.pdf
Size
367.92 KB
Format
Adobe PDF
Checksum
(MD5):a3cfbb6027c861f4ff29b28f73c010a7