Trace metal dynamics in plants and soils along intertidal gradients in semi-arid mangroves (New Caledonia)
| العنوان: | Trace metal dynamics in plants and soils along intertidal gradients in semi-arid mangroves (New Caledonia) |
|---|---|
| المؤلفون: | Carine Bourgeois, Steevensen Alcius, Andrea C. Alfaro, Cyril Marchand, Estelle Bisson |
| المساهمون: | Institut de sciences exactes et appliquées (ISEA), Université de la Nouvelle-Calédonie (UNC) |
| المصدر: | Marine Pollution Bulletin Marine Pollution Bulletin, 2020, ⟨10.1016/j.marpolbul.2020.111274⟩ |
| بيانات النشر: | HAL CCSD, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | 0106 biological sciences, [SDV]Life Sciences [q-bio], Intertidal zone, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences, 010501 environmental sciences, Aquatic Science, Oceanography, Rhizophora, 01 natural sciences, Soil, New Caledonia, Metals, Heavy, Trace metal, Organic matter, 14. Life underwater, ComputingMilieux_MISCELLANEOUS, 0105 earth and related environmental sciences, chemistry.chemical_classification, biology, 010604 marine biology & hydrobiology, 15. Life on land, Plant litter, biology.organism_classification, Pollution, Trace Elements, Avicennia, chemistry, 13. Climate action, Environmental chemistry, Soil water, [SDE]Environmental Sciences, Environmental science, Mangrove, Environmental Monitoring |
| الوصف: | Trace metal dynamics were investigated in mangroves developing in semi-arid New Caledonia, where Avicennia and Rhizophora stands grow in the upper and lower intertidal zone, respectively. We collected soil samples and mangrove tissues in an undisturbed site, a mining-influenced site and in a mining and aquaculture-influenced site. Differences in duration of immersion and organic matter (OM) cycling resulted in a sharp decrease of metal concentrations in soils and plants from landside to seaside. Both species were tolerant to metals mainly via exclusion, (i.e. metal bioaccumulation restricted to roots and leaf litter). Strong correlations (p 0.05) were found between Na and Fe, Mn, Cu and Zn in green and senesced leaves of Avicennia marina, indicating a possible role of those metals in mechanisms to cope with hypersaline conditions. Increasing metal pollution, aridity and sea-level rise are likely to result in a decrease in mangrove efficiency in filtering trace metals seaward. |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c5e9671e5d5f7ca01820864811755dc https://hal.archives-ouvertes.fr/hal-03389404 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi.dedup.....6c5e9671e5d5f7ca01820864811755dc |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |