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生态学杂志 ›› 2010, Vol. 29 ›› Issue (03): 598-604.

• 综述与专论 • 上一篇    下一篇

铬渣堆放场地土壤的污染过程、影响因素及植物修复

荣伟英1;周启星1,2**   

  1. 1南开大学环境科学与工程学院环境污染过程与基准教育部重点实验室,天津 300071;2中国科学院沈阳应用生态研究所中国科学院陆地生态过程重点实验室,沈阳 110016
  • 出版日期:2010-03-10 发布日期:2010-03-10

Soil pollution processes, their affecting factors, and phytoremediation of chromium slag heads: A review.

RONG Wei-ying1;ZHOU Qi-xing1,2   

  1. 1Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai Univer
    sity, Tianjin 300071, China;2Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
  • Online:2010-03-10 Published:2010-03-10

摘要: 铬渣堆放场地的土壤污染已成为重要的环境问题之一,并引起广泛关注。为了对铬渣堆场铬污染情况有更加详细的了解,本文对铬渣污染土壤的2个基本过程(铬渣中铬的水平迁移过程与垂直运移过程)、土壤有机质、pH、Eh和含水量、土壤类型及其无机胶体组成以及地下水运动方向等影响其迁移的因素进行了分析。在此基础上,对铬超积累植物的筛选、铬超积累植物的富集机制、铬渣堆场周围污染土壤的植物修复及其机理进行了概述。虽然目前对铬污染土壤的植物修复还处于起步阶段,但利用超积累植物对铬渣污染场地进行修复前景广阔。

关键词: 西瓜, 嫁接苗, 耐冷性, 活性氧清除系统

Abstract: Soil pollution of chromium slag heads has become an important environmental issue, and more and more attention has paid to the topic. In order to have
 a more detailed understanding of this pollution, two basic soil pollution processes, i.e., horizontal and vertical migration of chromium, as well the related a
ffecting factors, including soil organic matter, pH, Eh, water capacity, soil type, composition of soil inorganic colloids, and flowing direction of groundwater
, were analyzed. Meanwhile, the research progress on the identification and screening-out of chromium hyperaccumulators, accumulation mechanisms of chromium hyperaccumulators, and phytoremediation of contaminated soils around chromium slag heads and its mechanisms were summarized. It was considered that the use of chromium hyperaccumulators to remediate the contaminated sites of chromium slag heads would have a wide prospect, though the phytoremediation of chromiumcontaminated soils is still at its initial stage.

Key words: Watermelon, Grafting seedling, Chilling tolerance, Protective system against active oxygen