| Records |
| Author |
Cui, G.; Lu, Y.; Zheng, C.; Liu, Z.; Sai, J. |
| Title |
Relationship between soil salinization and groundwater hydration in Yaoba Oasis, Northwest China |
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Journal Article |
| Year |
2019 |
Publication |
Water |
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| 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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Multidisciplinary Digital Publishing Institute |
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THL @ luqianxue.zhang @ Cui2019 |
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46 |
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Greene, R.; Timms, W.; Rengasamy, P.; Arshad, M.; Cresswell, R. |
| Title |
Soil and Aquifer Salinization: Toward an Integrated Approach for Salinity Management of Groundwater |
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Book Chapter |
| Year |
2016 |
Publication |
Integrated Groundwater Management: Concepts, Approaches and Challenges |
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Pages |
377-412 |
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Degradation of the quality of groundwater due to salinization processes is one of the key issues limiting the global dependence on groundwater in aquifers. As the salinization of shallow aquifers is closely related to root-zone salinization, the two must be considered together. This chapter initially describes the physical and chemical processes causing salinization of the root-zone and shallow aquifers, highlighting the dynamics of these processes and how they can be influenced by irrigation and drainage practices, thus illustrating the connectivity between soil and groundwater salinization. The processes leading to aquifer salinization in both inland and coastal areas are discussed. The roles of extractive resource industries, such as mining and coal bed methane operations, in causing aquifer salinization are also outlined. Hydrogeochemical changes occurring during salinization of aquifers are examined with the aid of Piper and Mixing Diagrams. The chapter then illustrates the extent of the problem of groundwater salinization as influenced by management and policy using two case studies. The first is representative of a developing country and explores management of salt-affected soils in the Indus Valley, Pakistan, while the second looks at a developed country, and illustrates how through monitoring we can deduce causes of shallow aquifer salinity in the Namoi Catchment of NSW, Australia. Finally, there is a section on integration and conclusions where we illustrate how management to mitigate salinization needs to be integrated with policy to diminish the threat to productivity that occurs with groundwater degradation. |
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Springer International Publishing |
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Cham |
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Jakeman, A.J.; Barreteau, O.; Hunt, R.J.; Rinaudo, J.-D.; Ross, A. |
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978-3-319-23576-9 |
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THL @ luqianxue.zhang @ Greene2016 |
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49 |
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Ali, R.; Salama, R.; Pollock, D.; Bates, L. |
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Geochemical interactions between groundwater and soil, groundwater recycling and evaporation in the ORIA |
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2002 |
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CSIRO Land and Water |
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THL @ luqianxue.zhang @ Ali2002 |
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50 |
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Morales-Baquero, R.; Pulido-Villena, E.; Reche, I. |
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Chemical signature of Saharan dust on dry and wet atmospheric deposition in the south-western Mediterranean region |
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Journal Article |
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2013 |
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Tellus B: Chemical and Physical Meteorology |
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65 |
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1 |
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18720 |
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We studied if the presence of Saharan dust intrusions and the rains modify the chemical signature of the wet and dry deposition in the southern Iberian Peninsula. We have sorted the 109 sampling weeks by the presence (rainy weeks) or absence (dry weeks) of rain and by the occurrence or not of Saharan dust intrusions. Dry deposition dominated the delivery of particulate material (PM), total phosphorus (TP), soluble reactive phosphorus (SRP), Ca2+, Mg2+ and K+, whereas wet deposition dominated the delivery of Na+, total nitrogen, and . In the dry weeks, the presence of Saharan dust intrusions lead to higher inputs of PM, TP, SRP, Ca2+, Mg2+ and K+ in the dry deposition. Conversely, in the rainy weeks, there were no differences in mean values of dry deposition irrespective of the occurrence of Saharan dust intrusions. Nevertheless, in the presence of Saharan intrusions and some rain, the weekly collection of PM, TP and Ca2+ in dry deposition were significantly higher and increased as rainfall was lower. By contrast, the ions Cl– and Na+ in wet deposition were higher in absence of Saharan dust intrusion and increased as rainfall increased. |
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Taylor & Francis |
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THL @ luqianxue.zhang @ doi:10.3402/tellusb.v65i0.18720 |
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54 |
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El-Sayed, S.A.; Ramadan, A.B.; Salama, M.H.; Diab, M. |
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Geochemical and Radiological Characteristics of Harvested Rainwater and Surficial Soil in El-Alamein-Alam El-Rum Area, Western Mediterranean Coastal Zone, Egypt |
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Journal Article |
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2015 |
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Isotope and Radiation Research |
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47 |
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2 |
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177-198 |
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THL @ luqianxue.zhang @ El-Sayed2015 |
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57 |
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