Pre-event water contributions and streamwater residence times in different land use settings of the transboundary mesoscale Luzicka Nisa catchment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F17%3A00004193" target="_blank" >RIV/00027006:_____/17:00004193 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21110/17:00302757 RIV/00020711:_____/17:00004593

Výsledek na webu

<a href="http://dx.doi.org/10.1515/johh-2017-0003" target="_blank" >http://dx.doi.org/10.1515/johh-2017-0003</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1515/johh-2017-0003" target="_blank" >10.1515/johh-2017-0003</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Pre-event water contributions and streamwater residence times in different land use settings of the transboundary mesoscale Luzicka Nisa catchment

Popis výsledku v původním jazyce

The objective of the study was to evaluate the spatial distribution of peakflow pre-event water contributions and streamwater residence times with emphasis on land use patterns in 38 subcatchments within the 687 km(2) large mesoscale transboundary catchment Luzicka Nisa. Mean residence times between 8 and 27 months and portions of preevent water between 10 and 97% on a storm event peakflow were determined, using O-18 data in precipitation and streamwater from a weekly monitoring of nearly two years. Only a small tracer variation buffering effect of the lowland tributaries on the main stem was observed, indicating the dominant impact on the mountainous headwaters on the runoff generation. Longest mean streamwater residence times of 27 months were identified in the nearly natural headwaters of the Jizera Mountains, revealing no ambiguous correlation between the catchment area and altitude and the mean residence time of streamwater. Land use control on the pre-event water portions were determined for three land use categories with percentage of urban areas from 0 to 10%, 10 to 20% and more than 20%. The fraction of pre-event water in the first category decreases from 97% to 65% with the increasing percentage of forest from 76% to 100%, revealing that forests may provide only a limited infiltration of precipitation due to leaf interception and soil water use for transpiration. Fractions of pre-event water of 39-87% in the second (agricultural catchments) and of 10-35% in the third (urbanized catchments) category increase with percentage of non-urban areas.

Název v anglickém jazyce

Pre-event water contributions and streamwater residence times in different land use settings of the transboundary mesoscale Luzicka Nisa catchment

Popis výsledku anglicky

The objective of the study was to evaluate the spatial distribution of peakflow pre-event water contributions and streamwater residence times with emphasis on land use patterns in 38 subcatchments within the 687 km(2) large mesoscale transboundary catchment Luzicka Nisa. Mean residence times between 8 and 27 months and portions of preevent water between 10 and 97% on a storm event peakflow were determined, using O-18 data in precipitation and streamwater from a weekly monitoring of nearly two years. Only a small tracer variation buffering effect of the lowland tributaries on the main stem was observed, indicating the dominant impact on the mountainous headwaters on the runoff generation. Longest mean streamwater residence times of 27 months were identified in the nearly natural headwaters of the Jizera Mountains, revealing no ambiguous correlation between the catchment area and altitude and the mean residence time of streamwater. Land use control on the pre-event water portions were determined for three land use categories with percentage of urban areas from 0 to 10%, 10 to 20% and more than 20%. The fraction of pre-event water in the first category decreases from 97% to 65% with the increasing percentage of forest from 76% to 100%, revealing that forests may provide only a limited infiltration of precipitation due to leaf interception and soil water use for transpiration. Fractions of pre-event water of 39-87% in the second (agricultural catchments) and of 10-35% in the third (urbanized catchments) category increase with percentage of non-urban areas.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Projekt

—

Návaznosti

O - Projekt operacniho programu

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Journal of Hydrology and Hydromechanics

ISSN

0042-790X

e-ISSN

1338-4333

Svazek periodika

65

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

11

Strana od-do

154-164

Kód UT WoS článku

000398163300006

EID výsledku v databázi Scopus

2-s2.0-85016233635