Title: | The river absorption capacity determination as a tool to evaluate state of surface water |
Authors: | Wilk, P., P. Orlińska-Woźniak and J. Gębala |
Year: | 2018 |
Journal: | Hydrology and Earth System Sciences |
Volume (Issue): | 22(2) |
Pages: | 1033-1050 |
Article ID: | |
DOI: | 10.5194/hess-22-1033-2018 |
URL (non-DOI journals): | |
Model: | SWAT |
Broad Application Category: | hydrologic and pollutant |
Primary Application Category: | nutrient cycling/loss and transport |
Secondary Application Category: | hydrologic assessment |
Watershed Description: | 6,039 km^2 Warta River, which drains much of western Poland. |
Calibration Summary: | |
Validation Summary: | |
General Comments: | |
Abstract: | In order to complete a thorough and systematic
assessment of water quality, it is useful to measure the absorption
capacity of a river. Absorption capacity is understood
as a pollution load introduced into river water that will
not cause permanent and irreversible changes in the aquatic
ecosystem and will not cause a change in the classification
of water quality in the river profile. In order to implement
the method, the Macromodel DNS/SWAT basin for the Middle
Warta pilot (central Poland) was used to simulate nutrient
loads. This enabled detailed analysis of water quality in
each water body and the assessment of the size of the absorption
capacity parameter, which allows the determination
of how much pollution can be added to the river without compromising
its quality class. Positive values of the calculated
absorption capacity parameter mean that it is assumed that
the ecosystem is adjusted in such a way that it can eliminate
pollution loads through a number of self-purification processes.
Negative values indicate that the load limit has been
exceeded, and too much pollution has been introduced into
the ecosystem for it to be able to deal with through the processes
of self-purification. Absorption capacity thus enables
the connection of environmental standards of water quality
and water quality management plans in order to meet these
standards. |
Language: | English |
Keywords: | |