山坡地溪流整治對(duì)魚類棲地形態(tài)影響之評(píng)估

摘要： 以臺(tái)北縣石碇鄉(xiāng)之玉桂嶺南勢(shì)坑野溪為研究區(qū)域,收集該溪流之環(huán)境背景資料包括:整治前后地形圖、流速、水深、河床底質(zhì)分布與魚種分布等資料.以福祿數(shù)為指標(biāo).將河川棲地形態(tài)區(qū)分為深潭、深流及淺瀨3種類型,再運(yùn)用陳與陳評(píng)估魚類柄地面積之方法,探討該溪流在整治前及整治后各種棲地類型(如深潭、深流及淺瀨)所占面積的變化.并分析各種柄地形態(tài)之魚類可用棲地面積的改變.研究結(jié)果顯示:研究區(qū)域經(jīng)整治后,深潭柄地明顯減少,其魚類可用面積較整治前約減少50%. Abstract： The Nan-Shi-Keng mountainous stream located in Shidin township, Taipei county is selected to study the influence of remediation work on the stream in this study. The data, including the Digital Terrain Model(DTM), flow depth, flow velocity, substrate and fish distribution, etc. , in the mountain-ous stream were collected. Three habitat types, pool, run, and riffle, are classified by the criteria of Froude number. The method proposed by Chen and Chen was applied to evaluate the variations of habitat types for the stream before and after remediation. The results clearly show a decrease of pool habitat for the stream after remediation. The value of weighted usable area (WUA) for the pool habitat is decreased by 50% after stream remediation. 作 者： 陳晉琪    陳欣玫    CHEN Jinn-chyi    CHEN Hsin-mei   作者單位： 華梵大學(xué),環(huán)境與防災(zāi)設(shè)計(jì)學(xué)系,臺(tái)灣,臺(tái)北,22301  期 刊： 水土保持研究  ISTICPKU   Journal： RESEARCH OF SOIL AND WATER CONSERVATION  年，卷(期)： 2009, 16(6)  分類號(hào)： X171.1 S931.3  關(guān)鍵詞： 福祿數(shù)    棲地型態(tài)    可用柄地面積    Keywords： froude number    habitat type    weighted usable area   

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