Bibliographic citations
Flores, J., (2017). Análisis de una red de monitoreo de calidad de agua en la cuenca del río Jequetepeque mediante análisis multivariado [Tesis, Pontificia Universidad Católica del Perú]. http://hdl.handle.net/20.500.12404/9381
Flores, J., Análisis de una red de monitoreo de calidad de agua en la cuenca del río Jequetepeque mediante análisis multivariado [Tesis]. PE: Pontificia Universidad Católica del Perú; 2017. http://hdl.handle.net/20.500.12404/9381
@mastersthesis{renati/15101,
title = "Análisis de una red de monitoreo de calidad de agua en la cuenca del río Jequetepeque mediante análisis multivariado",
author = "Flores Takahashi, José Satoshi",
publisher = "Pontificia Universidad Católica del Perú",
year = "2017"
}
The establishment of surface water quality monitoring programs plays a key role in the Integrated Water Resources Management. These programs include the definition of the monitoring objectives, the network desing, the sampling protocol, laboratory samples analysis, collection and processing of data through which the desired information will be obtained about the physical, chemical and biological properties of the monitored water body. Therefore, to ensure a sustainable water resources management, a periodically assessment of the monitoring network is mandatory. In Perú, 67% of the socio-environmental conflicts registered between 2011 and 2014 were related to water quality and 62% to disputes between mining and agriculture. As a management measure, the National Water Authority has established surface water quality monitoring networks in one hundred basins, and has monitored the surface water quality 434 times. A representative basin in the country, one which has agriculture and mining as principal socio-economic activities and also presents latent socio-environmental conflicts related to water, is the Jequetepeque river basin. Since the 80's, surface water quality monitoring programs in the Jequetepeque river basin has been executed by different institutions and each one has established monitoring networks according to their objectives. Nevertheless, the surface water quality monitoring networks assessment has not been taken into account in any water national plan. The main objective of this thesis is to analyze the surface water quality monitoring network in the Jequetepeque river basin using statistical significance analysis of the water quality monitoring stations and water quality parameters established to evaluate the water quality in the basin. Multivariate statistical techniques like factor analysis (FA) and hierarchical cluster analysis (HCA) has been applied to the water quality monitoring database collected in the basin between 2015 and 2016 by the National Water Authority. Results identified that only 5,88% of the monitoring stations and 5% of the water quality parameters were statistical uncorrelated with the other stations and analyzed parameters in the monitoring network. The discarding of the station and parameter that were less correlated may be inadequate, due to the importance of both for the monitoring network. Four main groups define the surface water quality in the basin: the first group is highly related to the electric conductivity and is mainly distributed in the lower part of the basin, a second group is related to suspended solids and is distributed in all the basin, and two groups constituted by trace elements and fecal coliform are principal distributed in the higher part of the basin. Finally, this thesis showed that multivariate statistical techniques can be effectively applied in the analysis of water quality monitoring networks and can be employed in the sustainable management of water resources.
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