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題 名 | 集水區泥岩裸露邊坡植生復育之研究=Revegetation of Bare Mudstone Slopeland for a Watershed in Southern Taiwan |
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作 者 | 林昭遠; | 書刊名 | 水土保持學報 |
卷 期 | 29:2 1997.06[民86.06] |
頁 次 | 頁169-181 |
分類號 | 436.124 |
關鍵詞 | 阿公店水庫; 植生復育; 泥岩; 地理資訊系統; A-kung-ten reservoir; Revegetation; Mudstone; Geographic information systems; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究係以阿公店水庫集水區及其鄰近泥火山為對象,探討泥岩裸露邊坡之植生 復育方法。泥岩地區植生復育材料應依集水區之區位而異,集水區水流匯集處宜以禾草為主 ,方能達到過濾泥砂保護土壤之目的。 百慕達草可生長在電導度高達 10 mmhos/cm 的土壤 中,為耐鹽、耐旱、繁殖方便之匍匐性禾草,是泥岩邊坡植生復育的先驅草種。集水區潛在 植生復育困難之分布區,雖是需加強保育的地區,但並非一定是植生復育的理想配置區。陡 坡面坡度激烈變化處才是植生復育的最佳配置區,可藉由地形分析予以標定。泥岩地區水土 保持與植生復育工作,宜以集水區為單位作整體考量,若限於經費,可由極需處理之點切入 進而作面的配置;分期分區進行,方可達到預期的治理效果。利用衛星影像資料,藉由常態 化差異植生指數 (NDVI) 之計算,顯示集水區植被不良之區域,再配合地形分析找出該區植 生復育最佳的配置區,可篩選集水區內宜優先處理之地區,供植生復育規劃之用。 |
英文摘要 | The purposes of this study are to discuss the revegetation of mudstone slopeland in A-Kung-Ten reservoir watershed and screen the suitable revegetation materials at its nearby mud volcanic areas.Study results indicate that introduced plants for revegetation at mudstone areas should vary with sites of watershed. Grasses are better for downslope areas in protecting and/or filtering soils eroded by concentrated runoff from steep upland. With the characteristics of salinity and drought resistance, creeping, and easy to propagate, Bermuda grass can grow at the sites where soil electric conductivity up to 10 mmhos/cm and is a suitable pioneer plant for revegetation on the mude slopeland of mudstone. Conservation practices in the areas of potentially difficult revegetation should be enhanced. However the areas of potentially difficult revegetation are not necessarily the best places for revegetation work. Instead, the places where slopes change abruptly delineated by topography analysis are the optimal placements of revegetation. Integrated watershed management should be considered in planning revegetatin in mudstone areas. With limited funding, the most suitable placement of revegetation for prior treatment can be identified by applying GIS technology for overall management in the watershed. |
本系統中英文摘要資訊取自各篇刊載內容。