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Wyszukujesz frazę "groundwater salinity" wg kryterium: Temat


Wyświetlanie 1-4 z 4
Tytuł:
Evaluation of the groundwater levels and salinity in irrigable areas using geographical information system (GIS)
Autorzy:
Ayaz, Müslüm
Sesveren, Sertan
Powiązania:
https://bibliotekanauki.pl/articles/101458.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
groundwater monitoring
mapping
groundwater depth
groundwater salinity
irrigation
GIS
Opis:
Efforts on the management of water resources, especially irrigation and drainage, in arid-semiarid areas are extremely important for the sustainability of irrigated agriculture. Groundwater level should be constantly monitored and kept at the desired level in the project which is achieve the expected benefits from investments made for this goal. The research was done in right bank irrigation area which is located in Southeast Turkey, Suruc Plain in 2017. The spatial and temporal fluctuations of the groundwater table depth and groundwater salinity were measured in the course of five-month-periods; from July to October. The results of depth (m) and salinity (µmhos cm-1) of the groundwater observation wells were mapped using geographical information system (GIS). The results showed that groundwater was not found in many observation wells, while groundwater depth reached to a critical threshold level (2 m (risk free for drainage) from July to October in the study area. The groundwater salinity was found to be less than 2250 µmhos cm-1 at the research area. Depending on the research findings, it was noted that there were not any waterlogging, drainage and salinity problems stemming from the rise of groundwater table due to short-term irrigated agriculture in the plain.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2019, III/1; 263-278
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Qualitative assessment of the waters of the coastal aquifer Ghis-Nekor (Central Rif, Northern Morocco) in view of agricultural use
Autorzy:
Benyoussef, Said
Arabi, Mourad
El Ouarghi, Hossain
Ghalit, Mohammad
El Yousfi, Yassine
Azirar, Maryam
Ait Boughrous, Ali
Powiązania:
https://bibliotekanauki.pl/articles/2073743.pdf
Data publikacji:
2022
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
aquifer
Ghis-Nekor
groundwater
irrigation
quality
salinity
Opis:
The rainfall irregularity in the Al-Hoceima area places the Ghis-Nekor coastal aquifer as a primary resource for water supply. However, it is of paramount priority to adopt management and optimization plans that can mitigate the effects of the irrational use of the resource and the deterioration of its quality in the region of our study. In order to study the alteration aspects of this aquifer, 26 wells were sampled and their suitability for irrigation was assessed. The sodium adsorption rate (SAR) values indicate that most groundwater samples fall into the risk classes of high salinity and low sodium (C3-S1) and high salinity and medium sodium (C3-S2). The results also show a medium to high alkalinity risk due to the high concentration of HCO3-. The excess of salts is largely due to the intensive exploitation of groundwater and to the phenomenon of salt-water intrusion into the coastal karst aquifer. As a result, the quality of groundwater is not adapted to sustainable agricultural production and soil balance, which requires controlled monitoring to ensure its rational use with a view to the sustainable development of the region.
Źródło:
Journal of Water and Land Development; 2022, 52; 245--250
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of the agriculture on the quality of groundwater in the alluvial aquifer of the Tadjenanet area (eastern Algeria)
Autorzy:
Khedidja, Abdelhamid
Dib, Imen
Powiązania:
https://bibliotekanauki.pl/articles/2175186.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet Rolniczy im. Hugona Kołłątaja w Krakowie
Tematy:
groundwater
salinity
quality
effect
irrigation
Tadjenanet
Algeria
efekt
wody gruntowe
zasolenie
jakość
nawadnianie
Algieria
Opis:
The region of Tadjenanet is in eastern Algeria in the high plains, characterized by a varied age detritus Mio-Plio-Quaternary. Some geological formations can be an important source of groundwater (alluvial sand, shell limestone, gravel). Its location in semi-arid area involves evaporation pronounced even tilt the balance in a chronic deficit, excluding periods characterized by rainfall events. Agriculture in the study area is the first socio-economic activity and the largest consumer of water resources. It is therefore necessary to consider for effective water management. Indeed, the combination of hydrogeological and hydro chemical geological mapping, geophysics, harvested from field data and their interpretations can be an excellent tool for deciding the suitability of water for irrigation. The analysis of the physicochemical data shows an increase in the concentration of nitrates reaching 200 mg · l–1, as well as the analysis by the Richards SAR parameter shows that most groundwater samples are generally suitable for agricultural purposes with 33%, belong characterizing poor quality. Indeed, the groundwater in the region generally requires prior treatment before consumption and use depending on the type of crop. The assessment of the quality of the water in the region and its consequences on the soil and the types of crops has enabled the authorities concerned to manage the water supply adequately to preserve and protect this vital source for the future from any risk of contamination.
Źródło:
Geomatics, Landmanagement and Landscape; 2022, 3; 45--57
2300-1496
Pojawia się w:
Geomatics, Landmanagement and Landscape
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Quality of Hamadian groundwater table of the continental tertiary of Wadi Mehiya in Tindouf province (South-West of Algeria)
Jakość wód gruntowych poziomu Hamadi w utworach kontynentalnego trzeciorzędu w zasięgu rzeki Mehiya, prowincja Tindouf w południowo-zachodniej Algierii
Autorzy:
Bekkouch, M. F.
Zanagui, A.
Powiązania:
https://bibliotekanauki.pl/articles/292899.pdf
Data publikacji:
2018
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
Hamadi groundwater table
irrigation
quality
salinity
vulnerability
Wadi Mehiya
jakość
nawodnienia
podatność
poziom wodonośny Hamadi
zasolenie
Opis:
The Hamadian groundwater table ensures water supply for the agricultural perimeter of Wadi Mehiya region in the North-East of Tindouf city. In order to determine the behaviour of this groundwater table, a piezometric map have been realized, followed by physicochemical analyses to assess the chemical facies, the suitability of this water for irrigation and drinking purposes, as well as its vulnerability to different pollutants. This groundwater table is essentially composed of fine to coarse and clayey sands, surmounted by a silicified limestone slab. It is a free groundwater table with a thickness of 18 to 99 m. The sampling has been done in June 2010. Then, the physicochemical analyses have been performed on 7 samples taken from 7 boreholes. The piezometric study proved that the flow of groundwater table follows a North-East to South- -West direction, towards the Sebkha of Tindouf. The graphic representation of chemical facies, using Piper and Schoeller– Berkaloff diagrams, reveals that the water of Wadi Mehiya contains mainly magnesium sulphate. The graphical representation of irrigation water quality, using Wilcox diagram, revealed an acceptable quality with a high salinity. Moreover, this water is potable with hard-mineralized character. Nitrates contamination has been also noted, which is a logical result of the excessive use of chemical fertilizers.
Poziom wodonośny Hamadi zapewnia dostawy wody dla rolniczych terenów regionu Wadi Mehiya na północny wschód od miasta Tindouf. W celu określenia właściwości poziomu wodonośnego wykonano mapę piezometryczną, a następnie przeprowadzono analizy fizyczne i chemiczne do oceny składu wody, jej przydatności do nawodnień i zaopatrzenia ludności w wodę pitną, jak również podatności zasobów na różne zanieczyszczenia. Poziom wodonośny znajduje się w warstwie gliniastego piasku o zmiennym uziarnieniu podścielonego warstwą krzemionkowo-wapienną. Jest to poziom o swobodnym zwierciadle wody o miąższości od 18 do 99 m. Próbki wody pobrano w czerwcu 2010 r. Analizy fizyczne i chemiczne wykonano w 7 próbkach pobranych z 7 odwiertów. Badania piezometryczne wykazały, że woda gruntowa płynie z północnego wschodu na południowy zachód w kierunku Sebkha k. Tindouf. Graficzna prezentacja wyników z wykorzystaniem diagramów Pipera i Shoellera–Berkaloffa dowodzi, że w składzie chemicznym wody Wadi Mehiya dominuje siarczan magnezu. Graficzne przedstawienie jakości wody do nawodnień wg diagramu Wilcoxa wykazało akceptowalną jakość z dużym zasoleniem. Ta wysoce zmineralizowana woda nadaje się do celów spożywczych. Zanotowano także zanieczyszczenie azotanami, co jest skutkiem nadmiernego stosowania nawozów mineralnych.
Źródło:
Journal of Water and Land Development; 2018, 39; 3-9
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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