
S. RezapourUrmia University · Department of Soil Science
S. Rezapour
Associate Prof.
About
75
Publications
10,487
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
1,280
Citations
Introduction
Publications
Publications (75)
Soil health is a key indicator of agronomic, economic, and environmental functions, yet its significance in deeper soil layers, especially in deep-rooted orchard systems, remains largely unexplored. This study examines soil health index (SHI) in topsoil and subsoil across various soil classes in long-term apple orchards. We measured 27 soil health...
The quality of soil (SQ) serves as an indicator of its productive capacity, determined by a combination of biophysical and chemical attributes. These attributes experience alterations influenced by landscape patterns. To elucidate this correlation, our study aims to scrutinize the influence of landscape patterns on SQ in the northwest region of Ira...
Soil characteristics can be used to calculate the soil quality index (SQI). However, measuring these qualities is expensive and time-consuming, one option is to employ a digital soil mapping technique. The present study aims to digitally map SQI in the Urmia Plain (Northwest of Iran) using covariate data, random forest (RF), and RF-ordinary Kriging...
The reuse of wastewater (WW) for crop irrigation is increasingly recognized as an alternative to freshwater irrigation in arid and semi-arid regions. However, there is a significant gap in knowledge regarding the soil health index (SHI) and factors influencing topsoil and subsoil in cropland under long-term WW irrigation. This study aimed to compar...
Corn (Zea mays L.) is an important annual grain that is cultivated as a food staple around the world. The current study examined the effect of wastewater and a combination of biological and organic fertilizers on the morphological and phytochemical traits of corn, using a factorial experiment based on a randomized complete block design with three r...
Soil organic carbon (SOC) stands out as a crucial indicator for assessing soil properties due to its direct impact on soil productivity. To delve into this, we collected 350 soil samples from depths ranging from 0 to 30 cm in the northwest region of Iran, measuring SOC levels. Concurrently, we obtained vegetation indices from Landsat 8 and Sentinel...
We investigated the individual and synergistic impact of gypsum, elemental sulfur, vermicompost, biochar, and microbial inoculation on soil health improvement in degrading calcareous saline-sodic soils. We developed Linear and nonlinear soil health quantification frameworks to assess the efficacy of remedial practices. The combined inoculated chemi...
A fundamental requirement for the effective prevention and management of soil contamination involves the determination of heavy metal contamination levels and the assessment of associated health risks for human populations. In this study, an analysis was conducted to evaluate the pollution levels and health risks associated with heavy metals in urb...
Land elevation exerts a significant influence on soil fertility through affecting macro and micro climatic conditions and geomorphological processes. To evaluate the soil fertility at different elevation classes, namely 1600–2000, 2000–2400, 2400–2800, and > 2800 m, 350 surface soil samples (0–30 cm) were collected from the agricultural lands of no...
The deterioration of soil health (SH) in agricultural lands is a global challenge that poses a threat to food and resource security. We developed a practical framework to facilitate the large-scale SH assessment in agricultural fields of northwestern Iran. A total of 350 soil samples were collected and soil properties were determined. Eight linear...
Evaluating the Soil Quality Index (SQI affected by continuous and long-term cultivation operations to identify the threat of soil destruction and its controlling is a severe challenge. The current study has investigated the effects of cultivation operations on SQI in a wide area (37,524 ha), and with various types of soil (three soil orders includi...
Soil fertility and nutrient management are the main factors that directly affect the yield of the product. To evaluate the soil fertility at different elevations (including 1600-2000, 2000-2400, 2400-2800, and >2800 m), 350 surface soil samples (0-30 cm) were collected from the agricultural lands of northwestern Iran. Then, soil properties, includi...
The anthropogenic heavy metal dissemination in the natural environment through riverine sediments is a major ecological and public health concern around the world. This study gives insight into the source apportionment and potential ecological and health risks of heavy metals in river sediments of the Urmia Lake basin, a natural world heritage loca...
This study was performed to compare the uncertainty spatial distribution of soil organic carbon (SOC) stocks in different land uses. To achieve this goal, 210 soil samples were collected in 1140 km 2 land areas, and soil carbon, pH, EC, soil texture, and mineralogy were determined. Then, SOC stocks and soil erodibility factor were calculated. This...
The introduction of heavy metals from wastewater irrigation to the soil-crop-human biological domain has
become a vital environmental and human health challenge. We evaluated the impact of wastewater irrigation
(WW) on the severity of heavy metal pollution and health risk potential in different vegetables under WW versus
fresh water (FW) irrigation...
The contamination of agroecosystems with heavy metals, caused by the long-term agricultural practices (e.g., the application of extensive agrochemical), has become a high-priority issue for soil-food-human health. Our study aimed to estimate the effect of the agricultural activities on contamination severity and health risk potential of heavy metal...
The contamination of urban soils with heavy elements due to the rapid development of urbanization and urban services has become a major environmental and human health challenge. This study provides insight into the urbanization controls on combined pollution severity and health risk potential of heavy metals in corn-cultivated urban versus non-urba...
Arsenic (As) contamination in water has become a worldwide concern for public and environmental health owning to its non-degradable and toxic nature. Recently, elevated concentrations of As have been documented in groundwater, which needs remediation through low-cost technology. Cotton stalks derived biochar (CSB) is a new adsorbent material that m...
The contamination of cropland with cadmium (Cd) induced by anthropogenic activities is a serious challenge to environmental safety and human well-being. The current research assessed the range of Cd accumulation, uptake, mobility, translocation, and health risk in a wheat–soil system in leachate-affected and control soils. The findings revealed tha...
Knowledge of environmental factors controlling soil organic carbon (SOC) stocks can help predict spatial distribution SOC stocks. So, this study was carried out to select the best environmental factors to model and estimate the spatial distribution of SOC stocks in northwestern Iran. Soil sampling was performed at 210 points by multiple conditioned...
Soil salinity/sodicity is among the major threats to sustainable agriculture and plant production throughout the world. The damage caused by such threats can be reduced by developing efficient and suitable organic reclamation practices. We investigated the impact of organic amendments including biochar (BC) and vermicompost (VC) versus chemical tre...
Understanding the impact of physiographic position and agricultural practices on Mn forms is an important option to improve current Mn management. This work mainly aimed to investigate the effects of land physiographic position and agricultural practices on Mn forms in soils under long-term continuous wheat (Triticum aestivum L.) cultivation. In th...
The assessment of soil quality indices in waste leachate-affected soils is vital to understand the threats of land quality degradation and how to control it. In this respect, a study was conducted on the effects of uncontrolled landfill leachate on soil quality index (SQI) in calcareous agricultural lands using 28 soil variables. Using the total da...
Dwindling water resources have drawn global attention to the reuse of treated wastewater (TWW) for irrigation. However, the impact of continuous TWW applications on soil quality and the proper quantification and monitoring frameworks have not been well-understood. This study aims to provides an insight into the impact of flood irrigation of urban T...
Urbanization-induced soil quality degradation is a global challenge in both developed and developing nations which can be responsible for the reduced health and productivity of agroecosystems. However, available data are very limited as to the impacts of urbanization on different quantitative scenarios of soil quality indices (SQI). The present stu...
In this study, the effect of air pollution due to different traffic congestion of intersections and distance from intersection center on seed germination characteristics of Cupressus arizonica and Pinus nigra were studied in Urmia, Iran. At first, all intersections were classified into three classes of low, moderate and high traffic congestion usin...
Although the level of trace metals in agricultural soils is small, repeated use of both agricultural techniques and agrochemicals may lead to the accumulation of dangerously high levels of some metals in different soils in the long run. In order to monitor the variations of trace metal levels and their toxicity degrees caused by cultivation activit...
The present study was conducted to evaluate the ecological risk indices of Zn, Cu, Cd, Pb and Ni in the soils from Urmia region (Ghahramanloo village), as irrigated with treated wastewater. Accordingly, six different soil sites (five soil sites under wastewater irrigation and one soil site under well water irrigation as the control) were selected a...
The accumulation of heavy elements in agricultural soils under irrigation with wastewater may cause them to be transferred to the food chain and threaten human health. In this research, accumulation of cadmium health risk potential in soil system - wheat plant under irrigation with wastewater and control was investigated. The results showed that ir...
and use of wastewater generates challenges for public agencies charged with minimizing potential impacts on
public health and the environment. In this study, the available (DTPA-extractable) concentration of Zn, Cu, Cd,
Pb, and Ni in the surface soil was measured in five sites irrigated with treated wastewater as compared with a
site irrigated with...
The accumulation of trace elements in wastewater-irrigated soils may introduce them to the food chain and therefore can threaten human health. The present study investigated the accumulation, translocation factor, and health risk potential of cadmium (Cd) in a soil-wheat system irrigated with treated wastewater compared with a reference soil (irrig...
Irrigation with raw or diluted wastewater increases in many developing countries, but the increasing availability and use of wastewater generates challenges for public agencies charged with minimizing potential impacts on public health and the environment. In this study, the available (DTPA-extractable) concentration of Zn, Cu, Cd, Pb, and Ni in th...
The heavy metal pollution generated by landfill leachate becomes increasingly concerning due to its potential to impact human health through the food chain. In the present study, the accumulation and potential health risk of heavy metals (Zn, Cu, Cd, Pb, and Ni) were investigated in a calcareous soil -wheat system affected by an uncontrolled landfi...
In the present study, six soil profiles belonging to five soil types were dug, described and sampled. Soil samples were
analyzed for the determination of different physicochemical properties and total and DTPA-extractable iron (Fe), zinc
(Zn), copper (Cu), manganese (Mn), lead (Pb), and cadmium (Cd). Considering the variability of pH and calcium
ca...
Introduction: Over the past decades, due to climate change and water scarcity, the recovery and use of urban
wastewater, especially in arid and semi-arid climates, has increased. But since wastewater is considered as an
unconventional source of water, its use in agriculture requires special management which, while benefiting from
it, does not have...
The present study was conducted to evaluate the ecological risk indices of Zn, Cu, Cd, Pb and Ni in the soils from
Urmia region (Ghahramanloo village), as irrigated with treated wastewater. Accordingly, six different soil sites (five
soil sites under wastewater irrigation and one soil site under well water irrigation as the control) were selected a...
The concentration and potential ecological risk of Mn, Zn, Cu, and Cd in the surface soils (0–30 cm) belonging to 12 soil profiles and 4 soil types (Vertisols, Chernozems, Calcisols, and Cambisols) from the cultivated soils and the corresponding uncultivated soils were investigated. Long-term cultivation caused a considerable build-up diethylene-tr...
In order to assess the impact of deforestation—cultivation on soil quality attributes of Mollisols under native forest, 8 soil pedons and 32 soil cores were described and sampled from four different soil types of forest and adjacent cultivated soil on a transect. Deforestation and subsequent cultivation have resulted in a remarkable change in the m...
Studies on saline–sodic soils have a growing concern during time in many arid and semiarid nations due to human population pressures and need to produce more food and fiber. Nevertheless, little data are available about the quality attributes of the soils when affected by irrigation and cultivation. This study highlights the response of selected ch...
This study in order to evaluate the concentration and distribution of Cu, Zn, Cd, Ni and Pb after 10 years of irrigation with treated wastewater has be done. In this study, 6 points (5 points in the lands irrigated by sewage and 1 point in land under irrigation with well water as a control) was considered and samples from depths of o-30 cm soil wer...
The clay mineralogy of soils under influence of Urmia Lake (a hypersalic lake) in northwest of Iran were assessed to determine their origin and factors controlling their distribution pattern in soils. In the light of this, 7 soil profiles belonging to different soil types was dug, described, and sampled. Soils showing pH < 8.5, exchangeable sodium...
This study investigates morphological, physicochemical properties and clay mineralogy of four soil types belonging to salt-affected soils after converting into cropland. The data showed that strong platy to the medium prismatic structure of salt-affected soils was replaced by the fine angular blocky structure in cropland mainly as a result of the i...
The impacts of deforestation on soil fertility indices – are still not well understood in the forest lands of Iran characterised by Mediterranean type climate. Consistent with this, 8 soil pedons and 32 soil cores were described and sampled from four different soil types of forest and adjacent cultivated soil along a Mollisols transect. The results...
Understanding of the landscape response to agricultural practices mainly in relation to soil trace metals requires particular attention. Consistent with this, the trend and possible pollution of total and DTPA fraction of Mn, Zn, Cu, and Cd in the agricultural soils developed on different landscape positions involving piedmont alluvial plain (PAP),...
Dynamics and distribution pattern of trace metals in agricultural lands are an increasing concern due to potential risks to the environment and human health. To ascertain more knowledge of this aspect, the fractions of total and available Fe, Mn, Zn, Cu, and Cd belonging to Vertisols under intensive cultivation and adjoining uncultivated soils were...
Conclusion: Overall, the chemical properties of different soil series reflected different responses to (both increasing and decreasing pattern) long-term sunflower cultivation. Organic carbon, soluble and exchangeable K along with EC was known to be the most sensitive indicators following long-term continuous sunflower cropping and irrigation pract...
Morphological, physicochemical, and mineralogical properties of Vertisols (Chromic Calcixererts, Typic Haploxererts, and Typic Calcixererts) influenced under farming practices and adjoining uncultivated soils were investigated in order to contribute to the understanding of changes derived by intensive cultivation (over five decades). The study reve...
To assess effects of long-term agricultural practices on iron (Fe) oxide forms, 12 soil pedons belonging to six soil subgroups from the cultivated soils and the adjoining uncultivated soils were described and sampled. Soil samples were analyzed for physicochemical properties, mineralogical compounds, and different status of Fe oxides including free...
Two halophytes, Salicornia europaea and Atriplex verucifera, and the non-halophyte Chenopodium album were grown in pots on sodic and non-sodic Iranian soils spiked with up to 100 mg Cd kg−1. The halophytes grew best on the sodic soil in the absence of Cd spiking, while C. album performed better on non-sodic soil. Cadmium spiking reduced the growth...
The concentration and dynamic of soil trace metals in natural ecosystems, in particularly, is dependent on the lithology of parent rock as well as topography and geopedological processes. To ascertain more knowledge for this dependency, soils on three parent rocks involving peridotite, pegmatite, and dolerite in two contrasting topography aspects w...
A factorial design with different levels of elemental S and cow manure was used to investigate the effects of S and manure on SO4-S, P and micronutrient availability in a calcareous saline–sodic soil. The results revealed that the recovery of SO4-S increased significantly (p≤0.05) in all treatments as elemental S increased, particularly when in com...
Intensified agriculture and irrigation practices over a long-term are an important factor in soil change phenomena that can appear some unwanted effects on soil attributes. To examine this hypothesis, physicochemical properties and clay mineralogy of four major soil types (Typic Haploxerepts, Typic Xerorthents, Typic Calcixerepts, and Fluventic Hap...
Monitoring general variability of soil attributes is a fundamental requirement from the point of view of understanding and predicting how ecosystems yield. In order to monitor impact of different land use types on the combination of morphological, clay mineralogical and physicochemical characterizes, 42 soil samples (0–30 cm) were described and ana...
In the present work, the wastewater in Greece and in Iran, countries with more or less semiarid to arid climatic conditions, respectively, is studied. The basic aim is to stress the importance of integration of the treated wastewater reuse in the water management strategy, towards an effective management of water scarcity. A general background info...
Twelve soil profiles and 62 soil cores were described from two neighboring landscapes in the northwest of Iran to understand whether long-term wastewater irrigation has caused variations in morphological, physicochemical, and DTPA-heavy metals contents in soils. Along a gradual slope, different positions reflected heterogeneous response to flooding...
Mobility and bioavailability of lead (Pb) could be affected considerably by soil physicochemical properties; however, less is known about the effect of Pb levels and aging time. This study was conducted to evaluate the effects of Pb levels and wetting-drying (WD) cycles on distribution and bioavailability of Pb in three semi-arid zone soils treated...
In order to investigate changes caused in clay mineralogy and potassium (K) status by different land-use types, 42 soils samples (0–30 cm) were monitored and analyzed. Soil samples belonging to Reference Soil Groups of Cambisols and Vertisols were collected from three neighboring land uses involving cropland (under long-term continuous cultivation)...
Thirty-nine paired soil samples belonging to Inceptisols, irrigated with wastewater and well water, were examined to monitor the combination of clay mineralogy, physicochemical properties, and trace metals (Zn, Cu, Cd, and Pb) following long-term wastewater irrigation. Results of XRD analysis indicated that the quantity of clay minerals did not cha...
Concentrations and spatial distribution of Zn, Cu, Cd, and Pb along two landscapes including a wastewater-irrigated area and a control area were determined to assess the impact of long-term wastewater irrigation and landscape properties on heavy metal contamination. Some disturbed and undisturbed soil samples were taken from soil trenches and soil...
Soil contamination with potentially toxic elements (PTEs) in agricultural lands, in part, is responsible for limiting the crop productivity and the food chain contamination. The objective of this study were to asses the limiting of crop productivity by cadmium (Cd) and lead (Pb), the potential transfer and bioaccumulation of these PTEs in plants, a...
The combination of morphological, clay mineralogy, physicochemical, and fertilitical properties of inceptisols were compared for monitoring soil quality response following long-term agricultural activities. For this target, fifty-nine paired surface soils belonging to five subgroups of inceptisols from the major sugar beet growing area and the adjo...
Land evaluation is the act of predicting the use potential of land on the basis of its attributes. The objective of this study was to evaluate qualitative and quantitative land suitability for the north-west of Iran on the basis of a FAO model for sunflower and maize crops. Growing cycle was determined using the CDBm (Monthly Climate Database) mode...
Supply chains are one of the most important parts of the today's markets. In today's competitive markets, supply chains are formed by several competitive companies and work in the markets in the presence of several competitors such as rival companies or other supply chains. In such an environment different form of competitions exist within and betw...
The potassium pools of five major physiographic units of Urmia region in Western Azarbaijan Province were studied to investigate the distribution of K forms as a function of clay mineralogy and physiographic units. For this, soil samples from different horizons of ten pedons were selected and analyzed for physiochemical properties, mineralogy of cl...
The iron oxides fractions of four major physiographic units obtained from a transect of calcareous materials were studied to assess the effects of key pedogenic processes and local hydrology conditions as well as physiographic units in controlling iron oxides forms in the north-west of Iran. Samples from different horizons belonging to six pedons w...
The potassium pools of five major physiographic units of the Urmia region situated in western Azerbaijan province, north-west Iran, were studied to determine the distribution of K forms as functions of clay mineralogy and physiographic units. Soil samples from horizons of ten pedons were selected and analysed for physiochemical properties, clay min...