- 期刊
石質邊坡綠化植物之生態與生理特性
Eco-physiological Characteristics of Greenery Plants on Stony Slopes
摘要
本研究旨在探究石質邊坡上綠化植物之生態與生理特性，以供植物材料選擇與應用之參考。茲將硏究結果摘錄如下：1.台灣中部之大甲溪與大安溪中，下游砌石堤防邊坡，共調查得維管束植物40科115種，其中蕨類植物計3科4種；單子葉植物6科17種；雙子葉植物31科94種。植物在堤防邊坡之覆蓋率，以雞屎藤最大。而覆蓋率最髙之十種植物中，蔓藤植物即佔五種──雞屎藤、虎葛、千金藤、葎草及槭葉牽牛。可知石質邊坡之綠化，蔓藤植物有其適用價值。2.試驗獲知，三角仙人掌適生於環境惡劣之砌石邊坡，但若土壤含水量過高時，反促使授近地表莖部腐爛，阻礙生長。以生長勢而言，最旺盛者為槭葉牽牛，其次是葎草、爬牆虎、串花藤。槭葉牽牛生長迅速，綠化效果最佳；葎草生長量僅次於槭葉牽牛，唯落葉期留存葉面積比率低；爬牆虎葉片面積大、數量多，且為多年生，但冬季落葉期綠化效果差；串花藤生長較差，然遇乾旱，葉片可變薄、捲縮，並於莖部產生瘤狀（塊莖），遇雨水滋潤，即可迅速長出新葉，做為砌石邊坡植物材料有其利用價值。3.選取爬牆虎、串花藤、槭葉牽牛三種供試植物，進行斷水及充分供水處理一個月，經探討結果，耐旱性以串花藤最強。
並列摘要
Ecological and physiological charateristics of greenery plants on stony slopes in central Taiwan were studied. There are totally 115species, belonging to 40 families, on stony slopes. The most dominant species are Paederia scandens and Rhynchelytrum repens. Vines adaptable on stony slopes include Paederia scandens, Cayratia japonica, Stephania japonica, Humulus scundens and Ipomoea cairica. The pteridophyte quotient on stony slope is only 0.87. Hylocereus undatus survived well on dry stony slopes but not on wet sites. For the growth vigor on stony slope, Ipomoea cairica andHumulus scundens were the best. Parthenocissus tricuspidata and Boussingaultia cordifolia were also a quick grower . Based on water physiological studies, the sequence of drought resistance, from the highest to the lowest, was Boussingaultia cordifolia, Parthenocissus tricuspidata and Ipomoea cairica.