Risk assessment of drying up of small streams in the Czech
Republic

a 2016

Risk assessment of drying up of small streams in the Czech Republic

PAŘIL, Petr, Světlana ZAHRÁDKOVÁ, Ondřej HÁJEK, Pavel TREML, Michal STRAKA et. al.

Základní údaje

Originální název

Risk assessment of drying up of small streams in the Czech Republic

Autoři

PAŘIL, Petr (203 Česká republika, garant, domácí), Světlana ZAHRÁDKOVÁ (203 Česká republika, domácí), Ondřej HÁJEK (203 Česká republika, domácí), Pavel TREML (203 Česká republika), Michal STRAKA (203 Česká republika), Denisa NĚMEJCOVÁ (203 Česká republika), Marek POLÁŠEK (203 Česká republika) a Pavel ONDRÁČEK (203 Česká republika)

Vydání

2nd Central European Symposium for Aquatic Macroinvertebrate Research July 3–8 2016, Pécs, Hungary, 2016

Další údaje

Jazyk

angličtina

Typ výsledku

Konferenční abstrakt

Obor

10600 1.6 Biological sciences

Stát vydavatele

Maďarsko

Utajení

není předmětem státního či obchodního tajemství

Kód RIV

RIV/00216224:14310/16:00090330

Organizační jednotka

Přírodovědecká fakulta

ISBN

978-963-12-5936-0

Klíčová slova česky

mapy rizika vysychání; sucho; toky; makrozoobentos; bioindikace

Klíčová slova anglicky

drying up risk maps; drought; stream; aquatic macroinvertebrates; bioindication

Příznaky

Mezinárodní význam

Změněno: 9. 7. 2016 20:00, doc. RNDr. Petr Pařil, Ph.D.

Anotace

V originále

Categorization of the Czech Republic territory in terms of the risk of drying up of small streams (1st to 4th order by Strahler) was proposed. Three levels of risk (low, medium and high) were set for basic hydrological units (catchments). The risk levels were defined using selected abiotic characteristics of the hydrological units and their combinations. The selection of characteristics and their limit values were derived using a statistical method of classification trees. A set of sites divided into groups depending on whether they had been found drying or not was evaluated. The drying up of streams was detected by a new method of retrospective bioindication. This new method, which is based on the analysis of benthic macroinvertebrates, was developed within the comprehensive research of both permanent and drying up streams from 2012 to 2015. A total of 332 sites (1362 samples) located at small streams and monitored in the Czech Republic from 1997 to 2015 were evaluated by this method. The risk level was derived from the following characteristics: the precipitation deficit, land cover type, the share of bedrock containing clays, geomorphological characteristics and the share of standing waters in the catchment. According to our assessment the area of low risk of drying up of streams up to 4th Strahler order represents 45.3% of the area of the Czech Republic, while the area of medium and high risk 23.3% and 31.3% respectively. Typical high risk catchments are those with the predominance of arable land and with the share of standing water bodies greater than 1‰. The proposed categorization is to serve as a basis for decision-making processes, particularly for the water resource management, agriculture and conservation, and for the evaluation of the effect of measures against drought impacts. The categorization was based on the results of BIODROUGHT project (www.biodrought.eu).

Citovat

PAŘIL, Petr, Světlana ZAHRÁDKOVÁ, Ondřej HÁJEK, Pavel TREML, Michal STRAKA, Denisa NĚMEJCOVÁ, Marek POLÁŠEK a Pavel ONDRÁČEK. Risk assessment of drying up of small streams in the Czech Republic. In 2nd Central European Symposium for Aquatic Macroinvertebrate Research July 3–8 2016, Pécs, Hungary. 2016. ISBN 978-963-12-5936-0.

@proceedings{1349346,
   author = {Pařil, Petr and Zahrádková, Světlana and Hájek, Ondřej and Treml, Pavel and Straka, Michal and Němejcová, Denisa and Polášek, Marek and Ondráček, Pavel},
   booktitle = {2nd Central European Symposium for Aquatic Macroinvertebrate Research July 3–8 2016, Pécs, Hungary},
   keywords = {drying up risk maps; drought; stream; aquatic macroinvertebrates; bioindication},
   language = {eng},
   isbn = {978-963-12-5936-0},
   title = {Risk assessment of drying up of small streams in the Czech Republic},
   year = {2016}
}

TY  - CONF
ID  - 1349346
AU  - Pařil, Petr - Zahrádková, Světlana - Hájek, Ondřej - Treml, Pavel - Straka, Michal - Němejcová, Denisa - Polášek, Marek - Ondráček, Pavel
PY  - 2016
TI  - Risk assessment of drying up of small streams in the Czech Republic
SN  - 9789631259360
KW  - drying up risk maps
KW  - drought
KW  - stream
KW  - aquatic macroinvertebrates
KW  - bioindication
N2  - Categorization of the Czech Republic territory in terms of the risk of drying up of small streams (1st to 4th order by Strahler) was proposed. Three levels of risk (low, medium and high) were set for basic hydrological units (catchments). The risk levels were defined using selected abiotic characteristics of the hydrological units and their combinations. The selection of characteristics and their limit values were derived using a statistical method of classification trees. A set of sites divided into groups depending on whether they had been found drying or not was evaluated. The drying up of streams was detected by a new method of retrospective bioindication. This new method, which is based on the analysis of benthic macroinvertebrates, was developed within the comprehensive research of both permanent and drying up streams from 2012 to 2015. A total of 332 sites (1362 samples) located at small streams and monitored in the Czech Republic from 1997 to 2015 were evaluated by this method. The risk level was derived from the following characteristics: the precipitation deficit, land cover type, the share of bedrock containing clays, geomorphological characteristics and the share of standing waters in the catchment. According to our assessment the area of low risk of drying up of streams up to 4th Strahler order represents 45.3% of the area of the Czech Republic, while the area of medium and high risk 23.3% and 31.3% respectively. Typical high risk catchments are those with the predominance of arable land and with the share of standing water bodies greater than 1‰. The proposed categorization is to serve as a basis for decision-making processes, particularly for the water resource management, agriculture and conservation, and for the evaluation of the effect of measures against drought impacts. The categorization was based on the results of BIODROUGHT project (www.biodrought.eu).
ER  -

PAŘIL, Petr, Světlana ZAHRÁDKOVÁ, Ondřej HÁJEK, Pavel TREML, Michal STRAKA, Denisa NĚMEJCOVÁ, Marek POLÁŠEK a Pavel ONDRÁČEK. Risk assessment of drying up of small streams in the Czech Republic. In \textit{2nd Central European Symposium for Aquatic Macroinvertebrate Research July 3–8 2016, Pécs, Hungary}. 2016. ISBN~978-963-12-5936-0.

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