...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Crop Research >Ecological aspects of mangroves and their potential as phytoremediation in the gulf of Mexico.
【24h】

Ecological aspects of mangroves and their potential as phytoremediation in the gulf of Mexico.

机译：红树林的生态方面及其在墨西哥湾的植物修复潜力。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The region of influence of the basin of the Panuco river, that includes the urban zone of the city of Tampico, Tamaulipas, Mexico and the north of Veracruz state, contains an elevated level of water pollution, owing to the discharges of urban and agro-industrial water, in addition to the effects of the biomagnification of toxic compounds such as the heavy metals accumulated greatly in lagoons and in trophic chains in this region. The purpose of the present research was to determine the decontamination capacity of the mangroves species. The study areas include the lagoons San Andres, Carpintero, La Costa, Garrapatas and Pueblo Viejo. The mangrove species dynamics and indices such as of Shannon's diversity, S.rensen's affinity, forestry production, exploitation and the content of heavy metals were determined at each site. The dominant species observed were Rhizophora mangle (3-13 m), Laguncularia racemosa (6-8 m), Avicenia germinans (6-13 m) and Conocarpus erectus (>2 m). From north to the south, the dominance changed from A. germinans to L. racemosa. This last specie was the most exploited, with the highest dominance and density, with an importance value of 71.2%; the next species was R. mangle with 66.6%. The heavy metals of the sediments were Cd (2.82), Pb (28.57) and Cr (40.27 ppm). The lead content in leaves and branches (dry basis) of L. racemosa was 4.96 and 2.26 ppm, respectively. These results indicate that mangrove can be used as bioremediation agents to reduce the contaminants originated from the discharges of industrial water which are fixed in the woody portions.
机译：帕努科河流域的影响区域，包括坦皮科，塔毛利帕斯州，墨西哥市区和韦拉克鲁斯州北部，由于城市和农业用水的排放，水污染水平升高。工业用水，除了有毒化合物的生物放大作用外，还包括该区域泻湖和营养链中大量积累的重金属。本研究的目的是确定红树林物种的去污能力。研究区域包括泻湖San Andres，Carpintero，La Costa，Garapatas和Pueblo Viejo。在每个地点确定了红树林的动态和指数，如香农的多样性，S.rensen的亲和力，林业产量，开采量和重金属含量。观察到的优势种是曼氏根瘤菌（3-13 m），沙门氏菌（6-8 m），种小芽孢杆菌（6-13 m）和直立果（> 2 m）。从北部到南部，优势地位从A. germinans变为L. racemosa。最后一个物种是最被开发利用的，具有最高的支配性和密度，重要值为71.2％;第二种是R. mangle，占66.6％。沉积物中的重金属为Cd（2.82），Pb（28.57）和Cr（40.27 ppm）。总状沙门氏菌的叶子和分支（干基）中的铅含量分别为4.96和2.26 ppm。这些结果表明，红树林可以用作生物修复剂，以减少源自固定在木质部分的工业用水排放的污染物。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号