Abstract
In order to find out the methods of increasing species richness of lucidophyllous-artificial forest, we investigated that forest in Nanko power station on littoral district, Osaka city. As the result of comparison of life form spectrum between lucidophyllous-artificial forest and lucidophyllous-natural forest, it became clear that lucidophyllous-artificial forest lacks in dwarf shrub, perenial herb, climber, epiphyte and others. The 693 plants of 44 species belonging to those life forms were planted on three testing sites as a seed sources in plant species flow for species richness in the forest from November 1999 to June 2002. We investigated growth condition of those plants. By the reason of little precipitation in summer in 2000, 2001 and 2002 or winter in 1999, 48% of the plants withered. The withering ratio of Cymbidium goeringii, Ardisia japonica, Ardisia crenata, Liriope platyphylla and others were low. It seemed that planting of dwarf shrubs and perenial herbs which had tolerance to aridity was effective, as a method of increasing species richness of lucidophyllous-artificial forest.
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