利用交點法與內插法計算山坡地坡度之比較研究
Date Issued
2005
Date
2005
Author(s)
余東穎
DOI
zh-TW
Abstract
Slope gradient is an important factor when we describe a terrain or develop in a slopeland. While many methods calculating slope gradient have been developed, in this study two methods are exercised: the intersection method is by counting the crosses of contours and orthogonal squares and is currently recognized as an official method in Taiwan; the other is by calculating in third weighted method from an interpolated grid.
This study concludes that the interpolated grid method is more stable than the intersection method, but gets flatter slope gradients which cause more areas will be developed and endanger the environmental sustainability. A solution is to minify the cell size to one third of the original size, with removing fragment units and setting a more strict slope threshold .Thus, the stability can be kept and the developable slope area can be reduced.
Subjects
交點法
內插網格
坡度穩定性
intersection method
intersected grid
slope stability
Type
thesis
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