Nutrient transport through estuaries: The importance of the estuarine geography
Nutrient transport through estuaries: The importance of the estuarine geography
复制标题
通过河口的养分输送:河口地理的重要性
DOI:
10.1016/j.ecss.2014.03.014
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
Jickells T
中科院分区:
文献类型:
--
作者:
Jickells T
We consider here first the nature of nutrient transport through estuaries and in particular the capacity of estuaries to modify that flux. We then focus particularly on the Wash system in the UK as an example of a particular type of “small estuary”, and also consider some tropical estuarine systems in Malaysia. We present nutrient budgets for the Wash system now and create estimates of these budgets 3000 years ago. These show that currently the system is a small sink for fluvial nitrate (∼30% removal) largely due to denitrification and dissolved inorganic phosphorus (∼24%) by burial. 3000 years ago, prior to large scale human intervention to reclaim wetlands for agriculture, the Wash system was much bigger and operated as a sink for all terrestrial nitrogen (albeit with much lower inputs) and also a sink for nitrate from the North Sea, predominantly via organic nitrogen burial. A similar change with time is evident in the phosphorus flux. We suggest that this change in function of this estuarine system has been replicated in many other estuarine systems. Given the key role of benthic processes of burial and denitrification we go on to suggest that the classification of estuaries in terms of area and river flow may offer a route to a typology of estuarine nutrient retention efficiency.
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DOI:
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发表时间:
2000
期刊:
Geological Society Special Publication
影响因子:
--
作者:
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通讯作者:
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DOI:
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2004
期刊:
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2008
期刊:
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影响因子:
9.8
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通讯作者:
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DOI:
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发表时间:
1999
期刊:
影响因子:
--
作者:
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通讯作者:
R. Hamblin