干旱区生态环境知识资源中心

A century ago, Songnen Plain was a prairie which was suitable for grazing and farming with adequate water and vegetation resources and fertile land. Since the mid-20th century, due to anthropogenic and natural factors, salinization and desertification have rapidly expanded, which restricted the development of agriculture and animal husbandry in the area. Russian melilotus offcinalia was used for saline-alkaline grassland improvement, obtaining significant environmental, ecological and economic benefits, playing an important role in the protection of land resources and the promotion of food security. The article suggests the bio-engineering technology for soil improvement to repair and rehabilitate degraded ecological environment of agriculture and animal husbandry.