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Decline of mangroves - A threat of heavy metal poisoning in Asia

机译：红树林的减少-亚洲重金属中毒的威胁

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摘要

Mangroves are coastal habitats, contributing significantly to the well-being of coastal community, especially in Asia wherein over 70% of human population depends on the coastal resources for food and employment. In recent decades the uncontrolled run off materials from agriculture and industry are entering in to the mangrove system and polluting it alarmingly. The pollutants in particular, heavy metals (Hg, Cd, Ni, Pb, Cu, Cr, and Zn) enter into this system and maroon the mangrove substrate soil. Due to this property, there is a wide accumulation of heavy metals in mangrove flora and fauna. Obviously any small change in mangrove habitat has profound impacts on adjacent coastal systems including seagrass beds and coral reefs. This results in alteration of density and diversity of coastal life which is interlaced with coastal economy. Moreover, coastal people in Asian region are highly prone to heavy metal contamination due to diminishing of mangroves which will release the deposited heavy metals, which will reach man in several ways. It is the time to control further decline of mangroves and to encourage reforestation in coastal Asia for the well-being of the entire subcontinent.
机译：红树林是沿海生境，对沿海社区的福祉做出了重要贡献，尤其是在亚洲，亚洲有70％以上的人口依靠沿海资源获得食物和就业。近几十年来，来自农业和工业的不受控制的径流材料进入了红树林系统，并对其造成了惊人的污染。污染物尤其是重金属（Hg，Cd，Ni，Pb，Cu，Cr和Zn）进入该系统，使红树林基质土壤褐变。由于这种特性，红树林动植物中有大量的重金属积累。显然，红树林生境的任何细微变化都会对邻近的沿海系统（包括海草床和珊瑚礁）产生深远影响。这导致沿海生活密度和多样性的变化，与沿海经济交织在一起。此外，由于红树林的减少，亚洲地区的沿海人极易受到重金属污染，这将释放沉积的重金属，这些重金属将以多种方式到达人类。现在是时候控制红树林的进一步减少，并鼓励亚洲沿海地区重新造林，以造福整个次大陆。

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  • 来源
    《Ocean & coastal management》 |2014年第12期|161-168|共8页
  • 作者

    S. Sandilyan; K. Kathiresan;

  • 作者单位

    PG and Research Department of Wildlife Biology and Zoology, A.V.C. College, Mannampandal, 609 305 Mayiladuthurai, Tamilnadu, India,Mass College of Arts and Science, Kumbakonam, Tamilnadu, India Plot # 15, Abdul Kalam Street, PS. Ponninagar, Sriniva-sapuram, Mayiladuthurai 609001, Nagai District, Tamilnadu, India;

    Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai 608 502, Tamilnadu, India;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Asian countries; Coastal system; Mangroves; Heavy metals; Shore birds;

    机译：亚洲国家;沿海系统;红树林;重金属;滨鸟;

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