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GroMoPo Metadata for Llamara Salt Flat model


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Created: Feb 07, 2023 at 8:13 p.m.
Last updated: Feb 07, 2023 at 8:13 p.m.
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Abstract

The Propopis tamarugo Phil, also known as Tamarugo, is an endemic and protected tree that survives in the Atacama Desert-a hyper arid and highly saline environment. The Tamarugo is threatened because of groundwater overexploitation, and its preservation depends on the soil moisture in the vadose zone, as many of the tree roots do not reach the current water table levels. To improve the estimation of soil moisture available for the Tamarugo trees, we applied a hydrogeological model that couples the unsaturated and saturated zones. The model was used to represent different groundwater exploitation and recharge scenarios between February 2006 and September 2030 to predict simultaneously groundwater levels and soil moisture. The model results show that even at locations where water table depletion is relatively small (1-1.5 m), soil moisture can drastically decrease (0.25-0.30 m(3)/m(3)). Therefore, Tamarugo survival can be better addressed, as the applied model provides a management tool to estimate response of Tamarugo trees to changing soil moisture. To further improve the model and its use to assess Tamarugo survival, more field data, such as soil hydrodynamic properties and soil moisture, should be collected. Additionally, relationships between the state of the Tamarugo trees and soil moisture should be further constructed. In this way, the developed model will be able to predict future conditions associated to the Tamarugo's health state.

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
Chile
North Latitude
-21.0830°
East Longitude
-69.4000°
South Latitude
-21.6000°
West Longitude
-69.7500°

Content

Additional Metadata

Name Value
DOI 10.3390/geosciences10010001
Depth
Scale 1 001 - 10 000 km²
Layers 2-5 layers
Purpose Groundwater resources;Tree survival
GroMoPo_ID 129
IsVerified True
Model Code MODFLOW
Model Link https://doi.org/10.3390/geosciences10010001
Model Time February 2006 and September 2030
Model Year 2020
Model Authors A. Samuel; N. Blin; J. F. Muñoz; F. Suárez
Model Country Chile
Data Available Report/paper only
Developer Email aasamuel@uc.cl; fsuarez@ing.puc.cl
Dominant Geology Unsure
Developer Country Chile
Publication Title An Unsaturated/Saturated Coupled Hydrogeological Model for the Llamara Salt Flat, Chile, to Investigate Prosopis tamarugo Survival
Original Developer No
Additional Information
Integration or Coupling
Evaluation or Calibration Dynamic water levels
Geologic Data Availability

How to Cite

GroMoPo, S. Ruzzante (2023). GroMoPo Metadata for Llamara Salt Flat model, HydroShare, http://www.hydroshare.org/resource/884480b7ab664c1884c967f0367323b6

This resource is shared under the Creative Commons Attribution CC BY.

http://creativecommons.org/licenses/by/4.0/
CC-BY

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