Potential groundwater recharge zones within New Zealand
Water resources in New Zealand are not evenly distributed across the country which makes it difficult to adequately allocate the use of water resources in every basin. Groundwater is a fundamental water resource in New Zealand for agricultural, industrial and domestic use. Detailed knowledge regardi...
Main Authors: | , , , |
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Format: | Article |
Language: | English |
Published: |
Elsevier
2019-05-01
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Series: | Geoscience Frontiers |
Online Access: | http://www.sciencedirect.com/science/article/pii/S1674987118301488 |
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author | Shailesh Kumar Singh Malte Zeddies Ude Shankar George A. Griffiths |
author_facet | Shailesh Kumar Singh Malte Zeddies Ude Shankar George A. Griffiths |
author_sort | Shailesh Kumar Singh |
collection | DOAJ |
description | Water resources in New Zealand are not evenly distributed across the country which makes it difficult to adequately allocate the use of water resources in every basin. Groundwater is a fundamental water resource in New Zealand for agricultural, industrial and domestic use. Detailed knowledge regarding groundwater recharge potential is a pre-requisite for sustainable groundwater management, including the assessment of its vulnerability to contamination by pollutants. In this study, a comprehensive GIS approach was used to map the potential groundwater recharge zones across New Zealand. National data sets of lithology, slope, aspect, land use, soil drainage and drainage density were converted to raster data sets with a spatial resolution of 500 m × 500 m and superimposed to derive groundwater potential zones. The resultant maps demonstrate that the potential is low in urban and mountainous areas, such as the Southern Alps, whereas the highest potential can be found in regions with large lakes and in the lower elevation plains areas, where Quaternary sediments prevail. The resulting maps can be used to identify areas of high nutrient leaching in zones where high groundwater recharge potential exists. Keywords: GIS, Potential groundwater recharge map, New Zealand |
first_indexed | 2024-03-12T06:27:33Z |
format | Article |
id | doaj.art-e9ee4f3107cd452597a08162a7a8ab86 |
institution | Directory Open Access Journal |
issn | 1674-9871 |
language | English |
last_indexed | 2024-03-12T06:27:33Z |
publishDate | 2019-05-01 |
publisher | Elsevier |
record_format | Article |
series | Geoscience Frontiers |
spelling | doaj.art-e9ee4f3107cd452597a08162a7a8ab862023-09-03T01:50:29ZengElsevierGeoscience Frontiers1674-98712019-05-0110310651072Potential groundwater recharge zones within New ZealandShailesh Kumar Singh0Malte Zeddies1Ude Shankar2George A. Griffiths3Corresponding author.; National Institute of Water and Atmospheric Research, Christchurch, New ZealandNational Institute of Water and Atmospheric Research, Christchurch, New ZealandNational Institute of Water and Atmospheric Research, Christchurch, New ZealandNational Institute of Water and Atmospheric Research, Christchurch, New ZealandWater resources in New Zealand are not evenly distributed across the country which makes it difficult to adequately allocate the use of water resources in every basin. Groundwater is a fundamental water resource in New Zealand for agricultural, industrial and domestic use. Detailed knowledge regarding groundwater recharge potential is a pre-requisite for sustainable groundwater management, including the assessment of its vulnerability to contamination by pollutants. In this study, a comprehensive GIS approach was used to map the potential groundwater recharge zones across New Zealand. National data sets of lithology, slope, aspect, land use, soil drainage and drainage density were converted to raster data sets with a spatial resolution of 500 m × 500 m and superimposed to derive groundwater potential zones. The resultant maps demonstrate that the potential is low in urban and mountainous areas, such as the Southern Alps, whereas the highest potential can be found in regions with large lakes and in the lower elevation plains areas, where Quaternary sediments prevail. The resulting maps can be used to identify areas of high nutrient leaching in zones where high groundwater recharge potential exists. Keywords: GIS, Potential groundwater recharge map, New Zealandhttp://www.sciencedirect.com/science/article/pii/S1674987118301488 |
spellingShingle | Shailesh Kumar Singh Malte Zeddies Ude Shankar George A. Griffiths Potential groundwater recharge zones within New Zealand Geoscience Frontiers |
title | Potential groundwater recharge zones within New Zealand |
title_full | Potential groundwater recharge zones within New Zealand |
title_fullStr | Potential groundwater recharge zones within New Zealand |
title_full_unstemmed | Potential groundwater recharge zones within New Zealand |
title_short | Potential groundwater recharge zones within New Zealand |
title_sort | potential groundwater recharge zones within new zealand |
url | http://www.sciencedirect.com/science/article/pii/S1674987118301488 |
work_keys_str_mv | AT shaileshkumarsingh potentialgroundwaterrechargezoneswithinnewzealand AT maltezeddies potentialgroundwaterrechargezoneswithinnewzealand AT udeshankar potentialgroundwaterrechargezoneswithinnewzealand AT georgeagriffiths potentialgroundwaterrechargezoneswithinnewzealand |