scholarly journals Environmental Risk Assessment in Agriculture: The Example of Pistacia vera L. Cultivation in Greece

2020 ◽  
Vol 12 (14) ◽  
pp. 5735
Author(s):  
Georgios Bartzas ◽  
Konstantinos Komnitsas
Keyword(s):  
Water Quality ◽  
Risk Assessment ◽  
Environmental Risk ◽  
Soil Salinity ◽  
Environmental Risk Assessment ◽  
Irrigation Water ◽  
Pistacia Vera ◽  
Irrigation Water Quality ◽  
Medium Risk ◽  
Overall Risk

In this study, an integrated environmental risk assessment (ERA) study involving frequent monitoring of both water and soil parameters (24 on total), was carried out to assess and compare the environmental risk quality of three pistachio (Pistacia vera L.) fields (two in Aegina island and one in Kilkis) based upon risk categories identified and assessed in terms of quality and quantity. In this context, vertical profiles and risk matrices were created for a 60-month period for the most important soil and water parameters i.e., soil pH, soil organic matter, soil salinity, heavy metals, and irrigation water quality. According to the obtained results, the two pistachio fields in Aegina exhibited reduced overall risk values, i.e., 17% and 27%, respectively after the adoption of sustainable cultivation practices, thus reflecting a transition from “medium to high risk” to “low to medium risk” environmental quality. On the other hand, overall risk values for the pistachio field in Kilkis were reduced by 34% and were lower compared to the ones obtained for the pistachio fields in Aegina. The better environmental profile identified for the entire period in Kilkis ranging from “medium risk” to “low risk” was the result of lower inherent risk associated with irrigation water quality and soil salinity. The proposed methodology can be easily applied in other agricultural areas and for similar cultivations in Greece and other Mediterranean countries.

scholarly journals Relationship between Soil Salinization and Groundwater Hydration in Yaoba Oasis, Northwest China

Water ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 175 ◽  
Author(s):  
Guoqing Cui ◽  
Yudong Lu ◽  
Ce Zheng ◽  
Zhiheng Liu ◽  
Jiamei Sai
Keyword(s):  
Water Quality ◽  
Spatial Distribution ◽  
Soil Salinity ◽  
Irrigation Water ◽  
Surface Soil ◽  
Soil Salinization ◽  
Irrigation Water Quality ◽  
Ion Content ◽  
Soil Salt ◽  
The Relationship

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.

Environmental risk assessment focused on water quality in the Laborec River watershed

2021 ◽  
Author(s):  
Martina Zeleňáková ◽  
Katarzyna Kubiak-Wojcicka ◽  
Roland Weiss ◽  
Erik Weiss ◽  
Hany F. Abd Elhamid
Keyword(s):  
Water Quality ◽  
Risk Assessment ◽  
Environmental Risk ◽  
Environmental Risk Assessment ◽  
River Watershed

scholarly journals Estimating environmental risk assessment for drinking and fisheries use (on the example of the Danube river – the city Vilkovo)

2021 ◽  
Vol 30 (1) ◽  
pp. 25-33
Author(s):  
Maria E. Daus ◽  
Yurii V. Daus
Keyword(s):  
Water Quality ◽  
Risk Assessment ◽  
Water Supply ◽  
Environmental Risk ◽  
Environmental Risk Assessment ◽  
Danube River ◽  
Risk Indicators ◽  
The Danube River ◽  
Environmental Situation ◽  
The City

The Danube is a source of water for the household and industrial needs of Ukrainian population, industry and agriculture. The Danube waters are used for drinking centralized water supply in the cities of Kiliya and Vilkovo, as well as fisheries in the region. Therefore, it was important to carry out the “Environmental Risk Assessment for Drinking and Fisheries Use (on the example of the Danube River –the city Vilkovo)”. The purpose of the study was to evaluate the effectiveness of the application of the environmental risk criterion R on the basis of hydrochemical observations to verify the safety of drinking and fishery use. Analysis of environmental problems of the lower Danube River - Vilkovo; assessment of the environmental situation; calculation of water quality risk indicators according to the methodology of the Institute of Market Problems and Economic and Environmental Research of the NAS of Ukraine; establishing a link between water quality and risk is the finding of the research. It is established that the environmental situation is “critical” due to suspended substances, phenols, manganese and HCC for drinking water supply and “strained” through chromium, manganese, HCC, copper for fishery use. An assessment of the water quality by the modified Water Pollution Index (IWM) showed that the water is “moderately polluted” and “contaminated”. For both types of water use, normalized aggregated pollution indices were calculated taking into account the likelihood of a risk event occurring and R risk indicators were determined by year. It is established that there is a close linear relationship between WSS and R. It is shown that environmental risk estimates, based on the probability of exceeding concentrations of pollutants above the MPC, reflect well the ecological status of the water.

scholarly journals Assessment of Soil Salinity and Irrigation Water Quality of Chanchaga Irrigation Scheme I, Minna, Niger State

2018 ◽  
Vol 3 (1) ◽  
Author(s):  
Ibrahim A Kuti ◽  
Bolaji A Adabembe ◽  
John J Musa ◽  
Peter A Adeoye ◽  
Murtala Animashaun ◽  
...  
Keyword(s):  
Water Quality ◽  
Soil Salinity ◽  
Irrigation Water ◽  
Irrigation System ◽  
Water Source ◽  
Sodium Concentration ◽  
Sodium Absorption ◽  
Irrigation Water Quality ◽  
Irrigation Scheme ◽  
Soil And Water

The extent to which salinity is increasing in arid and semi-arid regions recently has become a concern in irrigation and non-irrigation land. In view of this, the study evaluated soil salinity and irrigation water quality at Chanchaga Irrigation Scheme I, Minna, Niger State with the aim of assessing the soil fertility status and irrigation water source of the scheme. The study took soil samples at 0 - 30cm depth from irrigated and non-irrigated plots and water was taken from the main point of the border irrigation system. Both soil and water sample collected were subjected to laboratory analysis. The study determined sodium absorption ratio and exchangeable sodium percentage of soil and water parameters analyzed in the laboratory. The Levene's test for equality of variances was performed on the concentration of the parameters analyzed in both soil (irrigated and non-irrigated plot) and water of the scheme. The study reveals that the sodium concentration was found higher in the irrigated plot than control plot and the EC and SAR values of the irrigated plot was classified as sodic. The SAR and other exchangeable values in both irrigated and non-irrigated plot have equal variances (> 0.10) with the exception of chlorine which is significant. The level of potassium in the water was higher and sodic in nature. The study concluded that the sodium hazard in both soil and water was higher than the desirable limits. It is important to take the soil sample of the whole plots so as to examine the salt variation in the scheme

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