Abstract
Phragmites australis stands along the down Stream of Ara River was investigated as NPO activities.
Although salinity level was from 0.0 to 6.8psu, there was no difference in physiology of P. australis between spots. The nitrogen content of P. australis in Ara River was relatively high compared with that of overseas stands. Characteristics of secondary shoots were different from that of primary shoots in the emergence period, diameters of stems and elongation patterns. In addition to studying the up to date information on P. australis, citizens successfully present the results in the academic conferences, and then new direction was shown.