Temporal variability of the groundwater level in the Tecamachalco Valley aquifer, Puebla, Mexico, 1997-2016
Abstract Introduction: The groundwater of the Tecamachalco Valley aquifer (TVA) is the main source of supply for productive activities in the area, a condition that has generated its overexploitation. Objective: To analyze the temporal variation in the static levels of the TVA from 1997 to 2016 in order to determine the level of groundwater depletion in the aquifer. Methodology: Historical data from the monitoring network of the Tecamachalco Groundwater Technical Committee was used, and static levels of 89 wells were recorded. The Mann-Kendall test was applied to the piezometric data and spatial analysis was incorporated with the Kriging interpolation method. Results: The water level in the evaluated period showed a downward trend. The static levels of the aquifer showed an average drop of 14 m; therefore, the depletion process is unsustainable if the same trend continues. Study limitations: There are no statistics on groundwater extraction; the existing data are inconsistent, so a non-parametric statistical test was chosen to reflect the behavior (depletion and recovery) of the monitored wells. Originality: There are few studies on the dynamics of TVA groundwater depletion. The combination of a statistical and a geographical method is a useful tool to show the behavior of water levels. Conclusions: The TVA presents a critical situation that conditions the availability and use of groundwater, which directly affects agricultural activity in the area.
| Principais autores: | , , , , , , |
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| Formato: | Digital revista |
| Idioma: | English |
| Publicado em: |
Universidad Autónoma Chapingo
2020
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| Acesso em linha: | http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S2007-40262020000100003 |
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