A Study on the Landscape Patterns Change Caused y Road Construction
Date Issued
2008
Date
2008
Author(s)
Meng, Hsiao-Lan
Abstract
The natural environment of Taiwan is as delicate as it is multifaceted, yet also very sensitive. Linear road construction and development brings the most serious fragmentation to landscapes demonstrated in the breakup in ecological and humane systems, as well as the discontinuity in visual landscapes. This act not only brings severe impact on biological habitats but also on the environmental quality of human living.his study attempts to explore the impact of road development on landscape ecology through the alterations to landscape structures with the help of geographical information systems as the analytical tool. It is the hope of the study that the concept of “ecological compensation” can be introduced into road widening and improvement projects, such that the environment may be able to repair and replenish itself.he purposes of the study are as follows:.Explore the alterations that road construction has brought to landscape structures; understand different types of landscape structure, and the level of fragmentation on landscapes.I.Explore the impact of the current road networking system on the patterns of landscape space.II.Introduce the concept of “ecological compensation” into road improvement, and study on strategies of how the consideration on ecology and environment can be incorporated into road construction, to further implement the idea of “no-net-loss”.he research area for the case study is the surrounding area of National Highway No. 2 (the route between National Highways No. 1 and 3) located at the border of Taoyuan and Taipei Counties and is originally of village landscape. Initial evaluation shows that the landscape structure is apparently fragmented and homogenized because of the construction of National Highway No. 2. A widening project on the highway is in the preparation stage due to its saturated traffic volume. This study analyzes the pre-developmental landscape structure of the section as a precursor to the planning of future improvement projects, as well as a means to introduce the concept of “ecological compensation” such that the environment may repair and replenish itself through improving the level of connection amongst fragmented landscape.
Subjects
landscape structure
geographical information system
landscape index
road construction
landscape connectivity
Type
thesis
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