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生态学杂志 ›› 2010, Vol. 29 ›› Issue (01): 152-156.

• 研究简报 • 上一篇    下一篇

陡坡无土排岩场植被生态修复技术

张鸿龄1;孙丽娜1**;孙铁珩2   

  1. 1沈阳大学污染环境的生态修复与资源化技术重点实验室,沈阳 110044;2中国科学院沈阳应用生态研究所,沈阳 110016
  • 出版日期:2010-01-08 发布日期:2010-01-08

Phytoremediation of soilless steep slope in mining junkyard.

ZHANG Hong-ling1;SUN Li-na1;SUN Tie-heng2   

  1. 1Key Laboratory of Eco-remediation of Contaminated Environment and Resources Reuse, Shenyang University, Shenyang 110044, China|2Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
  • Online:2010-01-08 Published:2010-01-08

摘要: 针对无土陡坡排岩场特殊的立地条件,以城市污泥、粉煤灰等固体废弃物配制的人工土壤进行基质改良的基础上,以坑植式种植刺槐(Robina pseudoacacia)及棉槐(Amorpha fruticosa),同时在种植坑中撒播牧草以培肥土壤,促进乔木生长固坡。结果表明,在人工土壤Ⅱ(粉煤灰∶城市污泥=1∶1)上种植的刺槐有较好的成活率(70%)和生长势,说明该修复技术在实现以废治废,变废为宝的同时,既解决了矿山废弃地修复中珍贵的土源问题,又改善了矿区生态环境。

关键词: 根系, 觅食反应, 土壤养分, 空间异质性

Abstract: Aiming at the special conditions of soilless steep slope in mining junkyard, the artificial soils composed of sewage sludge and fly ash were used as the medium, and Robina pseudoacacia and Amorpha fruticosa were planted in pits. At the same time, grasses were grown in the pits to fertilize the artificial soils. It was found that the R. pseudoacacia planted on artificial soil Ⅱ (fly ash∶sewage sludge=1∶1) had a high survival rate (70%) and a higher growth potential, suggesting that this remediation technology offered a potential of industrial byproduct utilization, and solved the shortage of soil resources in mining area.

Key words: Fine root, Foraging behavior, Soil nutrients, Spatial heterogeneity