种稻引起的土壤次生盐碱化问题研究

近年来,松嫩平原大安古河遗厦地退化严重,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,20世纪90年代,相关部门开展了当地湿地恢复和重建试验,在湿地周围土地上发展水稻种植,但经由实地考察发现由于稻田缺乏必要排水设施,在特定的气候、地形地貌、地层岩性等因素综合作用下,导致周围正常土壤出现次生盐渍化问题,本文对土壤次生盐碱化的影响因素、形成机理进行了分析和研究,并提出相应的治理措施.

The research for the soil secondary salinization caused by planting paddy

In recent years,Daan Paleochannel in Songnen Plain suffered serious degradation of wetlands,expressing in the gradual loss of ecological functions and resources capacity,and deteriorating of ecological environment.To improve the regional ecological environment and living conditions,in 90's of 20th century,the relevant departments had carried out the test of restoration and reconstruction of wetlands,such as plant paddy in wetlands,however,through field survey and found that rice fields have suffered the soi...