1887

oa Botswana Notes & Records - Islands in the Okavango Delta as Sinks of Water-Borne Nutrients

Volume 37, Issue 1
  • ISSN : 0525-5090

 

Abstract

Groundwater under islands in the Okavango Delta is a known sink of inorganic dissolved minerals, preventing salinisation of this virtually enclosed evaporation-dominated hydrological system. The Okavango Delta is an oligotrophic, yet very productive system, and it is important to understand sources, pathways and recycling of nutrients in order to fully comprehend its ecology. In order to investigate the role of islands as nutrient sinks, concentrations of nitrogen and phosphorus, as well as major inorganic ions were measured in island and floodplain groundwater. electrical conductivity, phosphorus, nitrogen and inorganic ions were measured and those of the islands compared to the floodplains.

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/content/botnotes/37/1/AJA052550590_188
2005-01-01
2019-08-17

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