A new method for modelling dissolved phosphorus transport with the use of WaTEM/SEDEM

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F17%3A00312913" target="_blank" >RIV/68407700:21110/17:00312913 - isvavai.cz</a>

Result on the web

<a href="https://link.springer.com/article/10.1007%2Fs10661-017-6082-4#citeas" target="_blank" >https://link.springer.com/article/10.1007%2Fs10661-017-6082-4#citeas</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10661-017-6082-4" target="_blank" >10.1007/s10661-017-6082-4</a>

Result language

angličtina

Original language name

A new method for modelling dissolved phosphorus transport with the use of WaTEM/SEDEM

Original language description

This paper presents a newly derived method for directly determining the amount of transported dissolved phosphorus by water erosion. The results of the method are compared to prediction based on enrichment ratio (as proposed by Sharpley and average share of DP in total transported phosphorus (5%) that is widely-used in the Czech Republic. Four study areas (catchments of dozens of sq km) were chosen for their different characteristics (land-use, average slope, average elevation, phosphorus concentration in the soil) which influence their rainfall-runoff behavior. The modelled results are compared with data measured in-situ. The two methods provide similar results in intensively agriculturally used regions. Agreement among the methods was observed for three study areas with significant erosion intensity (above 4 t/ha/year). In the catchment with significantly lower erosion intensity (0.5 t/ha/year), the indirect method (Sharpley) underestimates the amount of DP transported in the watercourses. The sum of transports of suspended solids into watercourses, and the average available phosphorus content in the soil determined by the Mehlich 3 method (PM3) are the main factors influencing the results provided by the two methods. An analysis of the impact of these factors on the difference between the results of the methods was provided. Transport of suspended solids is related to the method difference (R range from 0.37 to 0.71). However, no significant relationship was found between the difference in the results and the average PM3 content in the soil (R range from 0.15 to 0.36).

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10511 - Environmental sciences (social aspects to be 5.7)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Environmental Monitoring and Assessment

ISSN

0167-6369

e-ISSN

1573-2959

Volume of the periodical

189

Issue of the periodical within the volume

8

Country of publishing house

CH - SWITZERLAND

Number of pages

14

Pages from-to

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UT code for WoS article

000405440300012

EID of the result in the Scopus database

2-s2.0-85021692250