摘要
土地盐渍化是干旱和半干旱地区普遍存在的问题。防止土地盐渍化和盐渍土的改造利用，是一项具有重要生态意义和经济效益的工作。在“三北”防护林体系工程建设中，盐碱一直影响造林成活、保存和生长，成为进一步治理这一地区的主要限制因子之一。为探讨“三北”地区河套平...
Permanent sample plots were located in solonchak area in Hetao Plain, Inner Mongolia. The watersalt movement was observed in unfreeze periods during 3 years, and over 400 soil and ground water samples were measured. It is found that the dynamics of salt in soil can be divided into following stages: evaporationsalinization stages in spring and autumn, leachingdesalinization stages in summer(because of rainfall and irrigaiton), and relative stable stages in winter. The fluctuation of groundwater table was closely related to the water amount of irrigation. Mineralization of ground water and pH value was rather stable. Salt accumulation in the top soil layer of solonchak was existed in experiment area over the years.
出处
《林业科学》
EI
CAS
CSCD
北大核心
1999年第4期107-110,共4页
Scientia Silvae Sinicae
基金
"八五"国家科技攻关项目
