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| Author | Cui, G.; Lu, Y.; Zheng, C.; Liu, Z.; Sai, J. | ||||
| Title | Relationship between soil salinization and groundwater hydration in Yaoba Oasis, Northwest China | Type | Journal Article | ||
| Year | 2019 | Publication | Water | Abbreviated Journal | |
| Volume | 11 | Issue | 1 | Pages | 175 |
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| Abstract | Precipitation is scarce and evaporation is intense in desert areas. Groundwater is used as the main water source to develop agriculture in the oases. However, the effects of using groundwater on the ecological environment elicit widespread public concern. This study investigated the relationship between soil salinity and groundwater characteristics in Yaoba Oasis through in situ experiments. The relationship of the mineral content, pH, and main ion content of groundwater with soil salt was quantitatively evaluated through a gray relational analysis. Four main results were obtained. First, the fresh water area with low total dissolved solid (TDS) was usually HCO3− or SO42− type water, and salt water was mostly Cl− and SO42−. The spatial distribution of main ions in groundwater during winter irrigation in November was basically consistent with that during spring irrigation in June. However, the spatial distribution of TDS differed in the two seasons. Second, soil salinization in the study area was severe, and the salinization rate reached 72.7%. In this work, the spatial variability of soil salinization had a relatively large value, and the values in spring were greater than those in autumn. Third, the soil in the irrigated area had a high salt content, and the salt ion content of surface soil was higher than that of subsoil. A piper trilinear diagram revealed that Ca2+ and K+ + Na+ were the main cations. SO42−, Cl−, and HCO3− were the main anions, and salinization soil mainly contained SO42−. Fourth, the changes in soil salt and ion contents in the 0–10 cm soil layer were approximately similar to those of irrigation water quality, both of which showed an increasing trend. The correlation of surface soil salinity with the salinity of groundwater and its chemical components was high. In summary, this study identified the progress of irrigation water quality in soil salinization and provided a scientific basis for improving the oasis ecosystem, maintaining the healthy development of agriculture, managing oasis water resources, and policy development. Our findings can serve as a reference for other, similar oasis research. |
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| Publisher | Multidisciplinary Digital Publishing Institute | Place of Publication | Editor | ||
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| Notes | Approved | no | |||
| Call Number | THL @ luqianxue.zhang @ Cui2019 | Serial | 46 | ||
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| Author | Stamatakis, M.G.; Tziritis, E.P.; Evelpidou, N. | ||||
| Title | The geochemistry of boron-rich groundwater of the Karlovassi Basin, Samos Island, Greece | Type | Journal Article | ||
| Year | 2009 | Publication | Central European Journal of Geosciences | Abbreviated Journal | |
| Volume | 1 | Issue | 2 | Pages | 207-218 |
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| Publisher | Springer | Place of Publication | Editor | ||
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| Notes | Approved | no | |||
| Call Number | THL @ luqianxue.zhang @ stamatakis2009geochemistry | Serial | 75 | ||
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| Author | Tziritis, E. | ||||
| Title | Groundwater and soil geochemistry of the Eastern Kopaida region (Beotia, central Greece) | Type | Journal Article | ||
| Year | 2009 | Publication | Open Geosciences | Abbreviated Journal | |
| Volume | 1 | Issue | 2 | Pages | 219-226 |
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| Publisher | Versita | Place of Publication | Editor | ||
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| Notes | Approved | no | |||
| Call Number | THL @ luqianxue.zhang @ tziritis2009groundwater | Serial | 65 | ||
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| Author | Di Lorenzo, T.; Galassi, D.M.P. | ||||
| Title | Agricultural impact on Mediterranean alluvial aquifers: do groundwater communities respond? | Type | Journal Article | ||
| Year | 2013 | Publication | Fundamental and Applied Limnology/Archiv für Hydrobiologie | Abbreviated Journal | |
| Volume | 182 | Issue | 4 | Pages | 271-282 |
| Keywords | alluvial aquifers, groundwater, stygobiont, nitrate, overexploitation | ||||
| Abstract | In Mediterranean countries agricultural development heavily depends on groundwater availability due to arid and semi-arid climate and poor surface-water resources. Agriculture represents one of the most relevant pressures which generate impacts in alluvial aquifers by means of fertilizers and pesticides usage and groundwater overexploitation. Until now, very few studies have addressed the ecological response of groundwater fauna to groundwater contamination and overexploitation due to agricultural practices. We investigated a Mediterranean alluvial aquifer heavily affected by nitrates contamination and groundwater abstraction stress due to crop irrigation. The aim of this study was to evaluate the sensitivity of groundwater communities to (a) groundwater nitrate contamination, (b) groundwater abstraction due to irrigation practices, and (c) saltwater intrusion. The present work suggests that nitrate concentration lower than 150 mg l –1 is not an immediate threat to groundwater biodiversity in alluvial aquifers. This conclusion must be carefully considered in the light of the total lack of knowledge of the effects of long-term nitrate pollution on the groundwater biota. Moreover, local extinctions of less tolerant species, prior to monitoring, cannot be ruled out. Conversely, species abundances in ground water are affected by groundwater withdrawal, but species richness may be less sensitive. This result is attributable to the disappearance of saturated microhabitats and to the depletion of fine unconsolidated sediments, reducing the surface available to bacterial biofilm, which represent the trophic resource for several groundwater invertebrates and where the main aquifer self-purification processes, such as denitrification, take place. Saltwater intrusion seems not to affect groundwater species at the values measured in this coastal aquifer. |
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| Publisher | E. Schweizerbart'sche Verlagsbuchhandlung | Place of Publication | Editor | ||
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| ISSN | 1863-9135 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | THL @ luqianxue.zhang @ DiLorenzo2013 | Serial | 43 | ||
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| Author | Pezzarossa, B.; Piccotino, D.; Petruzzelli, G. | ||||
| Title | Sorption and desorption of selenium in different soils of the Mediterranean area | Type | Journal Article | ||
| Year | 1999 | Publication | Communications in soil science and plant analysis | Abbreviated Journal | |
| Volume | 30 | Issue | 19-20 | Pages | 2669-2679 |
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| Publisher | Taylor & Francis | Place of Publication | Editor | ||
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| Notes | Approved | no | |||
| Call Number | THL @ luqianxue.zhang @ pezzarossa1999sorption | Serial | 76 | ||
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