松嫩平原大安古河道湿地的恢复与重建

近半个世纪以来，松嫩平原大安古河道湿地退化严重，湿地提供资源的能力和生态功能逐渐丧失，生态环境日益恶化。为改善区域生态环境和居住条件，1994-2000年，湿地的恢复和重建试验在大安古河道试区展开。在恢复地表径流循环的基础上，试验重点在于扩大湿地面积、消减湿地水土的盐分和提高湿地生物多样性。至2000年，试区湿地面积增国550hm^2，湿地水土含盐量下降30％-80％，湿地植被盖度提高30％-40％，水禽从无到有，已增至数十种。试验表明，以恢复地表径流为核心措施的湿地恢复与重建具有可行性。此项研究对于松嫩平原其他湿地的恢复和重建，促进其资源和生态功能再生具有指导作用。

Wetland restoration and reconstruction in Da'an Paleochannel of Songnen Plain

Wetlands of Da'an Paleochannel in Songnen Plain were seriously deteriorating in the past fifty years. They were gradually losing the ability to provide resources and the ecological functions, and the ecological environment was worsening. An experiment has been launched in Da'an Paleochannel from 1994 to 2000 in order to improve the regional ecological environment and the inhabited conditions. The experiment focused on enlarging the area, desalting water and soil and raising the bio-diversity of the wetlands...