갈대 관리 방법에 따른 습지에서의 갈대 재 발생 특성

Characteristics of Phragmites communis regrowth in wetlands by reed management methods

Phragmites communis provide a variety of ecological functions, but they are highly invasive, aggressively reproduced, and difficult to remove. When they are over-extended and dominant species, wetland ecosystems are simplified and their ecological services are reduced. In this study, reoccurrence and growth characteristics of reed were investigated at 850 days after the application of various reed management methods under field conditions. The results showed that the removal of the only aboveground part of reed had no effect on reducing reoccurrence and growth. However, the removal of only 50 cm of the belowground part applied to this experiment, can prevent some reoccurrence of reeds. The most efficient way to inhibit the reoccurrence and growth of reeds was to use a completely covered weed mat after removing the belowground part. This prevents reoccurrence of reeds from the rhizosphere, intrusion of reeds from neighboring areas, and inhibits photosynthesis through shading. However, weed mats cannot be a permanent management tool and can interfere with the growth of other beneficial wetland plants. After the reeds were eliminated, weed mats should be removed. It may then need to plant other native plants or manipulate the water level to prevent recurrence of the reeds.