Studies on the Classification, Productivity, and Distribution of $C_3, C_4$ and CAM Plants in Vegetations of Korea(II. Production and Productivity of $C_3; and; C_4$Type Plants)

한국의 식생에 있어서 $C_3, C_4$ 및 CAM 식물의 분류, 생산력 및 분포에 관한 연구 2. $C_3;와;C_4$형 식물의 물질생산과 생산력

The production and productivity of $C_3 and C_4$ type plants in Korea was studcied In the areas, in which the summer temperature is above $30^{\circ}C,;C_3$ type plants showed“M” type productivity curves exhibiting two peaks in spring and autumn, and C4 type plants showd “Bell” type productivity curves which show one peak in summer(Figs. 1,2,3,4,5). From the result of researching the standing crop of $C_3 and C_4$type plants dcuring August and September in which the standing crop reaches the highest peak, the dominant plants in the natural grass vegetation were almost all of $C_4$ type plants, showing the high standing crop, while the standing crop of $C_3$ type plants shows its high peak in the humid areas, riversides and dams.