The impact of agriculture on dissolved nitrogen and phosphorus cycling in temperate ecosystems

Heathwaite, A. Louise (1993) The impact of agriculture on dissolved nitrogen and phosphorus cycling in temperate ecosystems. Chemistry and Ecology, 8 (3). pp. 217-231. ISSN 1029-0370

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Abstract

Although most research has focussed on inorganic nutrient forms of nitrate (NO− 3) and phosphorus (PO3 4) in runoff and receiving waters, nitrogen loss from agricultural land can also occur in organic and ammonium-nitrogen form; phosphorus losses, although often dominated by particulate transport, may occur in soluble organic and inorganic form. Furthermore, fluxes between different species may take place during transport from the land to the stream and as a result of in-stream, in-river or in-lake transformations. Knowledge of the spatial and temporal variation in all nitrogen species and phosphorus fractions in a drainage basin is therefore essential if the wider environmental significance of elevated nutrient concentrations in natural waters are to be assessed. This paper reviews recent work on N and P losses from agricultural land and presents some results from two intensive agricultural catchments: Slapton, Devon and the river Windrush catchment in the Cotswolds.

Item Type:
Journal Article
Journal or Publication Title:
Chemistry and Ecology
Additional Information:
The impact of agriculture on dissolved nitrogen and phosphorus cycling in temperate ecosystems
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1900
Subjects:
?? PARTICULATESSOLUBLE FRACTIONS PHOSPHORUS NITROGEN ORGANICS AGRICULTUREECOLOGYECOLOGY, EVOLUTION, BEHAVIOR AND SYSTEMATICSENVIRONMENTAL SCIENCE(ALL)EARTH AND PLANETARY SCIENCES(ALL) ??
ID Code:
49796
Deposited By:
Deposited On:
19 Sep 2011 11:11
Refereed?:
Yes
Published?:
Published
Last Modified:
14 Sep 2023 23:57