9Humborg C, Lttekkot V, Cociasu A, et al. Effect of Danube River dam on Black Sea biogeochemistry and ecosystem structure[l]. Nature, 1997, 386: 385-388.
10Nilsson C., Berggren, K. Alterations of riparian ecosystems caused by river regulation[J]. Bioscience, 2000,50(9):783-792.