摘要
本文研究了工业污染区盐渍化弃耕地的水盐动态 ,结果表明 ,除降水等因素外 ,植被状况对水盐动态也有明显影响。随植被盖度增加 ,土壤含盐量下降 ,全年处于脱盐状态的时间加长 ,植被盖度≥ 32 %时 ,4～ 1 0月 0～ 1 0 0 cm土层一般处于脱盐状态。切断或最大限度地减少工业污染源是必须解决的首要问题 ,在此基础上针对水盐动态和影响因素 ,采取综合措施恢复植被 ,才能逐步改善工业污染区盐渍土的性状。
In this paper, water and salt dynamics of saline soil of derelict land were researched in industrial pollution area. The results showed that vegetation affected water and salt dynamics of soil. The soil salinity decreased with increasing vegetation coverage. The time of desalination lengthened all year. The 0—100 layer soil was in desalination condition from April to October when vegetation coverage was greater than 32% or equal. In order to improve the characteristic of the saline soil ,the industrial pollution sources must be cut off ,the vegetation must be recovered by taking corresponding measures according to water and salt dynamics and affectine factors.
出处
《干旱区资源与环境》
CSSCI
CSCD
2004年第6期28-31,共4页
Journal of Arid Land Resources and Environment
基金
内蒙古自治区科技攻关项目
编号 2 0 0 1-0 70 5
