山坡地開發行為對基礎環境之影響及其指標

The Basic Environment Impacts and Indicators of Slope Land Development

10.29417/JCSWC.199809_29(3).0002

陳紫娥(Zue-Er Chen)

坡地開發 ； 環境影響 ； 指標 ； slope land development ； environmental impact ； impact indicators

中華水土保持學報

29卷3期（1998 / 09 / 01）

189 - 198

繁體中文

土地開發是將自然環境改變成為人造環境的一種行為，而任何種類之開發行為都將使植被與地形產生某種程度之改變。改變之部份，則依開發之目的，有其一定之植被和地形特徵。因此，開發行為導致之植被與地形的改變量，決定於原植被與地形之質量。本研究即基於此理論，透過不同種類之土地利用個案的研究，將此二項因子於開發前後之改變量作為其對環境之衝擊程度之指標。所得結果顯示地形改變量對環境衝擊程度呈正相關；以及各種土地利用對基地平坦度之要求各有一定之範圍。因此，本法可以預先估算擬開發區之地形序數改變量並可於開發規畫階段預測其環境影響程度。

Land development involves changes of natural environment. Any such a change means changes of vegetation or/and land form; As the vegetation and land form are regarded as the two key factors in slope land environment, the degree or extent of these changes in the land development project can thus be the effective indicators of the environmental impacts of the land development As the required grading and green cover of a sites usually varies in a range being determined by the specific purpose of the land development, such as golf courses, school ,communities or industrial park .Therefore, the changes can be estimated semi quantitatively from the original vegetation cover and the land form of the land to be developed, to predict the possible intensity and scale of the impacts. In the meanwhile, It can be estimated the changes of landform in quantity for any different type of land use.