摘要
以乌裕尔河滨河湿地退耕还湿示范区为研究对象,在自然恢复和人工修复的湿地恢复方式下,研究典型湿地植物群落土壤的p H、有机质含量、速效氮含量、速效磷含量、速效钾含量和电导率的变化。结果表明,随着退耕时间的增加,与人工修复方式相比,自然恢复方式对土壤的改良作用更显著;在不同植物群落中,小叶章(Calamagrostis angustifolia)群落对实验区湿地的土壤养分恢复更具促进作用。
The aim of this study was to clarify the effects of different modes of returning farmlands to wetlands on soil nutrient restoration characteristics. Under the modes of natural and artificial restorations, changes of p H, organic matter contents, available nitrogen contents, available phosphorus contents, available potassium contents and electric conductivity of soil were monitored, respectively. The results showed that with the increase of restoration time, the effect under natural mode was better than that under the artificial mode in terms of ameliorating soil nutrient characteristics. Among different wetland plant communities, Calamagrostis angustifolia community was the most effective one for soil fertility recovery, at least in our experimental area.
出处
《湿地科学》
CSCD
北大核心
2016年第4期586-589,共4页
Wetland Science
基金
黑龙江省林业厅科学技术计划项目资助
关键词
自然修复
人工恢复
滨河湿地
土壤
乌裕尔河
natural restoration
artificial restoration
riparian wetlands
soil
Wuyu＇er River
