Investigations into the restoration of submerged aquatic plants using soil seed bank for the water quality improvement in Lake Hachiro-ko, Akita

利用收集自八公子流域的37个土壤种子库，在秋田立大学农田和秋田八公子东部幕渠进行了沉水植物恢复试验。从土壤种子库中分别萌发了秋田县大学田间的11种沉水植物和八公子市东幕渠的4种沉水植物。卷叶塘草（Potamogeton crispus）和西米塘草（Potamogeton pectinatus）耐高浓度蓝藻华。阐明了这两种植物在八公子湖区湖岸水生植物恢复中的潜力。

Experimental restoration of submerged aquatic plants by using 37 soil seed banks collected from Hachiro-ko basin were performed at fields of Akita prefectural Univ. and Eastern curtain drain of Hachiro-ko, Akita. Submerged aquatic plants of 11 species in fields of Akita prefectural Univ. and 4 species in Eastern curtain drain of Hachiro-ko were germinated from soil seed banks respectively. The curly-leaf pondweed as Potamogeton crispus and sago pondweed as Potamogeton pectinatus were tolerant to hyper concentrated cyanobacterial bloom. We clarify the potential of these two species for restoration of aquatic plants in lake shore of Hachiro-ko area.