不同植被对工业污染区盐渍土的改良效果  

Improvement effect of vegetation on saline soil in industrial pollution area

作　　者：德永军[1] 郭连生[1] 

机构地区：[1]内蒙古农业大学林学院,内蒙古自治区呼和浩特010019

出　　处：《生态环境》2005年第1期95-98,共4页Ecology and Environmnet

基　　金：国家自然科学基金项目(39360005);包头市环境保护局资助项目

摘　　要：以包头市西郊工业污染区盐渍化弃耕地为对象,研究了不同植被对土壤水盐动态和体积质量的影响。研究表明,造林后使林地内草本植物得到较快恢复,且归还土壤的枯落物比木本植物多,改良盐渍土壤和促进脱盐的作用较好;随植被盖度增加,盐渍土土壤含盐量和体积质量降低,盐渍土性状逐步改善。因此,在实施以耐盐树种造林为先导的工业污染区盐渍土恢复植被工程时,应适当降低造林密度,以利于林地内草本植物的恢复和建立林草复合植被,提高工业污染区盐渍土的生物治理效果。The effects of different vegetation growing on the derelict saline land in industrial pollution area on water and soil dynam- ics and volume weight of soil were studied in the west suburb of Baotou, Inner Mongolia, China. The results indicated that litter re- turning from herbaceous plants was more than that of woody plants. The effect of herbaceous plants on improving saline soil and desalination was better than that of woody plants. The percentage of saline in the soil descended as the vegetation cover increased. Therefore, it had better construct forest with suitable density and establish wood-herb compound vegetation on the land for the bio- logical harnessing of saline soil in industrial pollution area.

关 键 词：工业污染区 盐渍土 植被 改良 

分 类 号：S156.4[农业科学—土壤学]