{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,28]],"date-time":"2026-02-28T04:24:19Z","timestamp":1772252659229,"version":"3.50.1"},"reference-count":43,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2021,5,25]],"date-time":"2021-05-25T00:00:00Z","timestamp":1621900800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","award":["UIDB\/04683\/2020, UIDP\/04683\/2020 and UIDB\/00681\/2020"],"award-info":[{"award-number":["UIDB\/04683\/2020, UIDP\/04683\/2020 and UIDB\/00681\/2020"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Geosciences"],"abstract":"<jats:p>Groundwater vulnerability assessment has become a useful tool for groundwater pollution prevention. Groundwater vulnerability maps provide useful data for protecting groundwater resources. Identification of agricultural patterns is an important issue for optimized land management. The watershed of the Tagus River is the backbone of this study. Naturtejo UNESCO Global Geopark, in the central interior of Portugal, corresponds to a rural area. Intensive agricultural practices showed an increasing trend in the last decades. The method that is most used internationally to assess vulnerability is the DRASTIC index. In this study, the DRASTICAI index is introduced. A new attribute\u2014anthropogenic influence\u2014is added here. Five levels of increasing vulnerability, from low to high, can be recognized here. The municipality of Idanha-a-Nova is most affected by intensive agricultural activities, showing spatial patterns of DRASTICAI with a clear influence of anthropogenic activities, with high needs for groundwater abstraction. A robust assessment of groundwater quality has a key role. Climate change scenarios and water scarcity are important issues in the coming years, and particularly in the studied area. Therefore, optimized groundwater management is essential to consider in policy-making strategies.<\/jats:p>","DOI":"10.3390\/geosciences11060228","type":"journal-article","created":{"date-parts":[[2021,5,25]],"date-time":"2021-05-25T13:14:21Z","timestamp":1621948461000},"page":"228","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["DRASTICAI, a New Index for Groundwater Vulnerability Assessment\u2014A Portuguese Case Study"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8782-6133","authenticated-orcid":false,"given":"Teresa","family":"Albuquerque","sequence":"first","affiliation":[{"name":"Centro de Estudos de Recursos Naturais, Ambiente e Sociedade, QRural, Polytechnique Institute of Castelo Branco, 6000-084 Castelo Branco, Portugal"},{"name":"Instituto de Ci\u00eancias da Terra, University of \u00c9vora, 7000-812 \u00c9vora, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8859-4365","authenticated-orcid":false,"given":"Nat\u00e1lia","family":"Roque","sequence":"additional","affiliation":[{"name":"Centro de Estudos de Recursos Naturais, Ambiente e Sociedade, QRural, Polytechnique Institute of Castelo Branco, 6000-084 Castelo Branco, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9131-0041","authenticated-orcid":false,"given":"Joana","family":"Rodrigues","sequence":"additional","affiliation":[{"name":"Naturtejo UNESCO Global Geopark, 6000-083 Castelo Branco, Portugal"},{"name":"Instituto de Ci\u00eancias da Terra, University of Minho, 4710-057 Braga, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3456-5926","authenticated-orcid":false,"given":"Margarida","family":"Antunes","sequence":"additional","affiliation":[{"name":"Instituto de Ci\u00eancias da Terra, University of Minho, 4710-057 Braga, Portugal"}]},{"given":"Catarina","family":"Silva","sequence":"additional","affiliation":[{"name":"Faculdade de Ci\u00eancias, Instituto Dom Luiz, Universidade de Lisboa, 1649-004 Lisbon, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2021,5,25]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Abdullah, T.O., Ali, S.S., Al-Ansari, N.A., and Knutsson, S. 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