Abstract
The objective of this study was to test an easily fabricated tool that assist in the manual installation of piezometers, as well as water table monitor in the research site, located at the Gualaxo do Norte River Watershed, state of Minas Gerais, Brazil. The tool is made of iron pipes and is a low-cost alternative for shallow groundwater observation wells. The measurements were done in a riparian zone after being gold mined, when vegetation and upper soil layers were removed. The wells were installed in three areas following a transect from the river bank. The method was viable for digging up to its maximum depth of 3 meters in a low resistance soil and can be improved to achieve a better resistance over impact and its maximum depth of perforation. Water table levels varied distinctly according to its depth in each point. It varies most in the more shallow wells in different areas, while it was more stable in the deeper ones. The water table profile reflected the probably profile f the terrain and can be a reference for its leveling in reconstitution of degraded banks where upper layers of the soil were removed. Groundwater monitoring can be also an indicator of the suitability of the substrate for soil reconstitution in terms of the maintenance of an infiltration capacity similar to the original material.
Highlights
One of the most common goals of scientific research and public efforts for the environment is to improve water quality
Many efforts have been made to find scientific basis to landscape management practices focusing on the improvement or at least maintenance of water quality and quantity for human consumption and to keep ecosystem stability
This paper presents a test of an fabricated tool that assist in the manual installation of shallow ground water observation wells, which can be an alternative to the costly and sometimes inaccessible mechanical installation
Summary
One of the most common goals of scientific research and public efforts for the environment is to improve water quality. Many efforts have been made to find scientific basis to landscape management practices focusing on the improvement or at least maintenance of water quality and quantity for human consumption and to keep ecosystem stability. An example of that is that the watershed is being proposed to be the basic geographic unit for sustainable management programs. The saturated subsurface zone, or phreatic zone, contains the largest source of unfrozen fresh water in the world. An understanding of the storage and movement of groundwater is necessary for appreciating other components of the hydrologic cycle. It plays an important role to integrate the other components of the cycle, as well as water storage and discharge (Dunne and Leopold, 1978)
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