Nutrient dynamics
Nutrients are pivotal in the structure and function of river ecosystems. As essential resources they control primary production and decomposition processes, and influence metabolic pathways in the riparian, parafluvial and hyporheic zones (e.g. Duff & Triska, 2000; Wetzel, 2001). Surprisingly fe...
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fteawag:oai:dora:eawag_11358 2023-05-15T14:52:34+02:00 Nutrient dynamics Tockner, K. Illi, R. Malard, F. Uehlinger, U. Ward, J.V. Uehlinger, U. 2003 https://doi.org/10.1007/978-94-017-0181-5_6 eng eng Springer Ecology of a glacial flood plain eawag:11358 isbn: 978-94-017-0181-5 local: 10864 doi:10.1007/978-94-017-0181-5_6 Text Book Chapter 2003 fteawag https://doi.org/10.1007/978-94-017-0181-5_6 2023-04-09T04:48:09Z Nutrients are pivotal in the structure and function of river ecosystems. As essential resources they control primary production and decomposition processes, and influence metabolic pathways in the riparian, parafluvial and hyporheic zones (e.g. Duff & Triska, 2000; Wetzel, 2001). Surprisingly few year-round studies, however, have quantified concentrations and fluxes of all major nutrient fractions; this is particularly true for remote alpine and arctic areas (Tockner et al., 2002, and references therein). The fractionation of nutrients into dissolved and particulate forms, and into inorganic and organic components, is essential for a comprehensive understanding of nutrient dynamics. Alpine and arctic streams appear resource limited in terms of both nutrients and organic matter. For example, Lock et al. (1990) showed that the addition of phosphorous to an arctic river resulted in a substantial stimulation of both heterotrophic and autotrophic processes. Peterson et al. (1993) documented bottom-up control of tundra rivers subjected to long-term phosphorous addition. Robinson and Gessner (2000) demonstrated that nutrient addition accelerated leaf breakdown in a glacial stream. Further, there is strong evidence that zoobenthic communities in glacial streams are not solely structured by temperature and channel stability (cf. Milner & Petts, 1994), but are strongly influenced by seasonal shifts in water sources and corresponding availability of nutrient and organic matter resources (Ward, 1994; Füreder, 1999). [.] Book Part Arctic Tundra DORA Eawag Arctic Duff ENVELOPE(-60.029,-60.029,-62.450,-62.450) 91 107 Dordrecht |
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fteawag |
language |
English |
description |
Nutrients are pivotal in the structure and function of river ecosystems. As essential resources they control primary production and decomposition processes, and influence metabolic pathways in the riparian, parafluvial and hyporheic zones (e.g. Duff & Triska, 2000; Wetzel, 2001). Surprisingly few year-round studies, however, have quantified concentrations and fluxes of all major nutrient fractions; this is particularly true for remote alpine and arctic areas (Tockner et al., 2002, and references therein). The fractionation of nutrients into dissolved and particulate forms, and into inorganic and organic components, is essential for a comprehensive understanding of nutrient dynamics. Alpine and arctic streams appear resource limited in terms of both nutrients and organic matter. For example, Lock et al. (1990) showed that the addition of phosphorous to an arctic river resulted in a substantial stimulation of both heterotrophic and autotrophic processes. Peterson et al. (1993) documented bottom-up control of tundra rivers subjected to long-term phosphorous addition. Robinson and Gessner (2000) demonstrated that nutrient addition accelerated leaf breakdown in a glacial stream. Further, there is strong evidence that zoobenthic communities in glacial streams are not solely structured by temperature and channel stability (cf. Milner & Petts, 1994), but are strongly influenced by seasonal shifts in water sources and corresponding availability of nutrient and organic matter resources (Ward, 1994; Füreder, 1999). [.] |
author2 |
Ward, J.V. Uehlinger, U. |
format |
Book Part |
author |
Tockner, K. Illi, R. Malard, F. Uehlinger, U. |
spellingShingle |
Tockner, K. Illi, R. Malard, F. Uehlinger, U. Nutrient dynamics |
author_facet |
Tockner, K. Illi, R. Malard, F. Uehlinger, U. |
author_sort |
Tockner, K. |
title |
Nutrient dynamics |
title_short |
Nutrient dynamics |
title_full |
Nutrient dynamics |
title_fullStr |
Nutrient dynamics |
title_full_unstemmed |
Nutrient dynamics |
title_sort |
nutrient dynamics |
publisher |
Springer |
publishDate |
2003 |
url |
https://doi.org/10.1007/978-94-017-0181-5_6 |
long_lat |
ENVELOPE(-60.029,-60.029,-62.450,-62.450) |
geographic |
Arctic Duff |
geographic_facet |
Arctic Duff |
genre |
Arctic Tundra |
genre_facet |
Arctic Tundra |
op_relation |
Ecology of a glacial flood plain eawag:11358 isbn: 978-94-017-0181-5 local: 10864 doi:10.1007/978-94-017-0181-5_6 |
op_doi |
https://doi.org/10.1007/978-94-017-0181-5_6 |
container_start_page |
91 |
op_container_end_page |
107 |
op_publisher_place |
Dordrecht |
_version_ |
1766323801483640832 |