Natural recolonization of a chronically oil-polluted mangrove soil after a de-pollution process

Ocean and Shoreline Management Pub Date : 1990-01-01 DOI:10.1016/0951-8312(90)90033-E

F. Martin, E. Dutrieux, A. Debry

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引用次数: 11

Abstract

The authors discuss the results of a restoration operation at a mangrove site polluted by hydrocarbons. This site is a swamp usually planted with Avicennia sp. mangroves but which was totally destroyed after chronic oil spillings. A special programme has made it possible to prevent pollution of the site, and to bring clean marine water, thereby assisting its natural cleansing. The natural recolonization of the site by small Avicennia plants began rapidly (3 months) once the restoration equipment was operational. The density and the growth of these small plants seemed to be more influenced by the substrate nature than by the hydrocarbon concentrations in the soil. The results showed that fresh oil was the real cause of the mortality of small plants rather than the concentrations of a soil-aged product. In the case of chronic pollution of a site, to stop the regular arrival of a pollutant can be sufficient in itself to restore a site, and it is not necessary to consider costly cleansing and restoration operations.

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去污染过程后长期受石油污染的红树林土壤的自然再定殖

作者讨论了在一个受碳氢化合物污染的红树林遗址进行恢复作业的结果。这个地点是一片沼泽，通常种植着红树，但在长期的石油泄漏后完全被破坏了。一项特别方案使防止对该地点的污染成为可能，并带来清洁的海水，从而协助其自然清洁。一旦修复设备投入使用，小的Avicennia植物就开始迅速(3个月)对场地进行自然再定居。这些小型植物的密度和生长似乎更受基质性质的影响，而不是受土壤中碳氢化合物浓度的影响。结果表明，小株死亡的真正原因是新鲜油脂，而不是土壤老化产物的浓度。在场地长期受到污染的情况下，阻止污染物定期到达本身就足以恢复场地，而无需考虑昂贵的清洁和恢复作业。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Ocean and Shoreline Management

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