Phosphorus cycling in watersheds: from limnology to environmental science
نویسندگان
چکیده
منابع مشابه
Phosphorus losses from agricultural watersheds in the Mississippi Delta.
Phosphorus (P) loss from agricultural fields is of environmental concern because of its potential impact on water quality in streams and lakes. The Mississippi Delta has long been known for its fish productivity and recreational value, but high levels of P in fresh water can lead to algal blooms that have many detrimental effects on natural ecosystems. Algal blooms interfere with recreational a...
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Agriculture is a major nonpoint source of phosphorus (P) in the Midwest, but how surface runoff and tile drainage interact to affect temporal concentrations and fluxes of both dissolved and particulate P remains unclear. Our objective was to determine the dominant form of P in streams (dissolved or particulate) and identify the mode of transport of this P from fields to streams in tile-drained ...
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Most states in the USA have adopted P Indexing to guide P-based management of agricultural fields by identifying the relative risk of P loss at farm and watershed scales. To a large extent, this risk is based on hydrologic principles that frequently occurring storms can initiate surface runoff from fields. Once initiated, this hydrological pathway has a high potential to transport P to the stre...
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In vast regions of the ocean, a significant fraction of the vital nutrient phosphorus (P) in surface waters is associated with dissolved organic matter (DOM). Oceanic biological productivity in these regions is potentially dependent on the regeneration of bioavailable forms of P from DOM. Using tangential-flow ultrafiltration, high molecular weight (HMW) DOM samples were collected for chemical ...
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chapter i provides an overview of structural linguistics and touches upon the saussurean dichotomies with the final goal of exploring their relevance to the stylistic studies of literature. to provide evidence for the singificance of the study, chapter ii deals with the controversial issue of linguistics and literature, and presents opposing views which, at the same time, have been central to t...
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ژورنال
عنوان ژورنال: Limnology
سال: 2020
ISSN: 1439-8621,1439-863X
DOI: 10.1007/s10201-020-00631-1