On resistance to Overhead Flooding of Plant for Greening Under Condition of Turbid Running Water

Abstract

An experiment was made to decide resistance to overhead flooding under turbid running water condition, using 40 kinds of plant for greening as experimental material, in order to find out plant suitable for greening in space likely susceptible to overhead flood phenomenon. The result showed that Ophiopogon japonicus Ker. forma nanus hort., Acros gramineus Soland. and Equisetum hiemale L. survive under overhead flood condition for as long as several months, and Zoisia japonica Steud., Zoisia matrella Merr., Cynodon dactylon L. Pers., Paspalum notatum Flugge., Stenotaphrum secundatum Kuntze., Agrostis palustris Sibth., and Pharalis arundinacea L. for turf grass, Eurya emarginata Makino., Raphiloepis umbellata Makino.var mertensii Makino., Buxus microphylla S et Z.var japonica Rehd et Wils., and Buxus microphylla S et Z.var Sinica Rehd et Wils. for shrubs, still Juncus effusus L.var decipiens Buch., Typha latifolia L. and Phragmites communis Trinius. for aquatic plant, survive for as long as 65-85 days, high in resistance to overhead flood, goodly enough to be regarded as plant for greening, effective in overhead flood areas.