Optimization of a Tree Pit as a Blue–Green Infrastructure Object

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F23%3A00371221" target="_blank" >RIV/68407700:21110/23:00371221 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.3390/su152215731" target="_blank" >https://doi.org/10.3390/su152215731</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/su152215731" target="_blank" >10.3390/su152215731</a>

Result language

angličtina

Original language name

Optimization of a Tree Pit as a Blue–Green Infrastructure Object

Original language description

Trees in dense urban environments are often planted in bioretention cells with an underlying trench (BC-T) providing both stormwater pretreatment and storage. The BC-T design is based on a water balance; however, some input data (tree water uptake and water-holding capacities of soil filter and trench substrate) are difficult to obtain. The goals of this paper were (i) to study the sensitivity of such data in the BC-T design (i.e., their effect on the size of the drained area which may be connected to the tree pit), and (ii) to recommend a possible simplification of the water balance for engineering practice. Global sensitivity analysis was performed for the setup of a BC-T used in Prague, Czech Republic, assuming three different trench exfiltration rates. The most sensitive variable affecting the size of the drained area is the available water-holding capacity in the trench. The simplification of the water balance is highly dependent on exfiltration conditions. At high exfiltration rates (18 mm/h and more) or for a trench with an underdrain, the water-holding capacity in the soil filter and the tree water uptake can be omitted; whereas, at low trench exfiltration rates (1.8 mm/h, without an underdrain), both the water-holding capacity of the trench substrate and the potential tree water uptake have a significant influence and cannot be omitted.

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

20102 - Construction engineering, Municipal and structural engineering

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2023

Confidentiality

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

Name of the periodical

SUSTAINABILITY

ISSN

2071-1050

e-ISSN

2071-1050

Volume of the periodical

15

Issue of the periodical within the volume

22

Country of publishing house

CH - SWITZERLAND

Number of pages

19

Pages from-to

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UT code for WoS article

001120593300001

EID of the result in the Scopus database

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