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Closed Access item Fluvial nutrient dynamics in a humanized landscape. Insights from a hierarchical perspective
Riera, Joan L.
Merseburger, G. C.
Von Schiller, D.
|Keywords:||Nutrients, Stream, River, Global change, Nitrogen, Phosphorus, Biogeochemistry, Hierarchical structure|
|Publisher:||Asociación Española de Limnología|
|Citation:||Limnetica, 25(1-2) : 513-526 (2006)|
|Abstract:||Global change driven by human activity is overimposed on the hierarchical structure of fluvial ecosystems, causing a myriad of
effects on their physical template and hydrology as well as on the quantity and quality of the resources for stream biota. Global
change operates at all scales within this hierarchy, but its effects on the ecology of fluvial ecosystems at any particular scale
may be exacerbated or overridden by concomitant effects occurring at other scales. The resulting effects can have major ecological
implications on both ecosystem services (namely, biogeochemical processes associated to energy and matter flow) and
biodiversity (namely, community structure), which currently are issues of central concern in environmental management. In
this paper we focus on a particular ecological attribute of fluvial ecosystems, the capacity to process and retain nutrients, and
examine how physical and chemical alterations caused by human activities, occurring at different scales, may interact to affect
this capacity. We illustrate these effects based on existing knowledge and highlight the key changes at different scales which
can be susceptible of major effects.|
|Description:||14 Páginas ; 1 Tabla ; 1 Figura|
|Publisher version (URL):||http://www.limnetica.com/Limnetica/limne25a/L25a513_Fluvial_nutrient_dynamics.pdf|
|Appears in Collections:||(CEAB) Libros y partes de libros|
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