Abstract
Necessary environmental conditions for healthy tree growth in artificial peninsula have been proposed. Lithocarpus edulis, Quercus phillyraeoides were selected for this study. They were planted at regular intervals on the line which intersects at right angle to waters edge. Environmental factors [average temperature, max temperature, minimum temperature average, average wind velocity, max wind velocity, rainfall, daylight hours, WI, CI, soil exchangeable Na accumulation] and plant growth characteristics [height, tree width, diameter, and maximum photosynthetic rate (Pmax)]were measured.Results show that, the Pmax has decreased with rising of the soil exchangeable Na accumulation.It was recognized that Lithocarpus edulis phillyraeoides does not grow healthy if it is within 48m from seaside, or if 50.6mg/100g of soil exchangeable Na accumulation or more. It was also recognized that Quercus phillyraeoides does not grow healthy if it is within 88m from seaside, or if 25.0mg/100g of soil exchangeable Na accumulation or more.
