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Öğe Assessment of ammonium, nitrate, phosphate, and heavy metal pollution in groundwater from Amik Plain, southern Turkey(Springer, 2014) Agca, Necat; Karanlik, Sema; Odemis, BerkantAmik Plain is one of the most important agricultural areas of Turkey. Because the groundwater resources have been used not only for irrigation but also for drinking purpose, groundwater resources play a vital role in this area. However, there exist no or a very limited number of studies on groundwater quality and its physicochemical and heavy metal composition for Amik Plain. This study aimed to assess groundwater of Amik Plain in terms of human health and suitability for irrigation based on physicochemical variables, heavy metals, and their spatial distribution. A total of 92 groundwater samples were collected from wells and were analyzed for temperature (T), salt content (SC), dissolved oxygen (DO), ammonium (NH4 (+)), nitrate (NO3 (-)), and phosphorus (P) and such heavy metals as cadmium (Cd), cobalt (Co), chromium (Cr), copper (Cu), iron (Fe), manganese (Mn), nickel (Ni), lead (Pb), and zinc (Zn). The temperature, SC, DO, NH4 (+), and NO3 (-) parameters were measured in situ immediately with YSI Professional plus instrument (Pro Plus). Water depth was taken from owner of the wells. Heavy metal analyses were carried out in triplicate using inductively coupled atomic emission spectrometer (ICP-AES). The ICP-AES was calibrated for all the metals by running different concentrations of standard solutions. Descriptive statistical analyses were calculated to characterize distribution of physicochemical properties and heavy metal contents of groundwater. Correlation analysis was used to assess the possible relationships among heavy metals and physicochemical properties of the groundwater. Spatial variability in groundwater parameters were determined by geostatistical methods. Result shows that the highest and lowest coefficient of variation occurred for NO3 (-) and T, respectively. Mean water table depth was 92.1 m, and only 12 of all the samples exceeded the desirable limit of 50 mg/L for NO3 (-) content. The metal concentrations showed a dominance in the order of Fe > Mn > Ni > Cr > Cu > Zn > Co > Cd > Pb. All the samples had much higher Cd concentration than the guideline value for drinking water while Cu and Fe concentrations were below the guideline limit recommended by WHO.Öğe Determination of effects of divided fertilizer in different growth stage on some yield characteristics of soybean cultivated under water deficit(Parlar Scientific Publications, 2021) Delice, Hatice; Odemis, BerkantThis research was carried out to evaluate the effects of divided fertilizer applications in different growth stages on yield and yield parameters including number of pod and bloom of soybean cultivated under water deficit in 2013. Experiment was designed as factorial design with three replication and five irrigation schedule (as a depletion of available water content, 25%, 50%, 75%, 100% and 125% excessive of depletion). During growth season, the amount of total fertilizer (NPK) required was applied to all treatments (F0, F2 ve F3) during seeding. Whereas nitrate fertilizer that is needed during three different growth period (R1, R2 and R3).was applied by dividing to 2 (F2) and 3 (F3). According to the results, the amount of applied irrigation water, evapotranspiration and water use efficiency (WUE) varied between 185.46 and 791.04 mm, 253.51 and 781.71 mm and 0.52-0.89 kgdamm-1 in different irrigation schedules, respectively. The seed yield in F0, F2 and F3 treatments were obtained 202.76, 299.15, 389.14, 401.63, 417.68 kgda-1 and 226.08, 293.95, 370.60, 407.08, 414.15 kgda-1 and 208.61, 265.72, 340.94, 420.50, 439.35 kgda-1 in I25, I50, I75, I100, I125 irrigation levels, respectively. © 2021 Parlar Scientific Publications. All rights reserved.Öğe Determination of groundwater quality in Hatay Province, Turkey(Asian Journal Of Chemistry, 2007) Sangun, Mustafa Kemal; Ozdilek, Hasan Goksel; Odemis, BerkantIn this study, groundwater quality of Amik Plain and its surrounding areas is illustrated. A total of 59 groundwater wells located throughout Hatay Province were examined in this study. It was found that the water quality of wells is to a certain extent good for irrigational use; on the other hand, some wells, situated downstream Asi River after Antakya (Hatay Province center), have relatively low water quality even for irrigational use.Öğe DIFFERENT IRRIGATION INTERVALS AND WATER AMOUNT STUDIES IN YOUNG APRICOT TREES (CV. NINFA)(Parlar Scientific Publications (P S P), 2017) Durgac, Coskun; Bozkurt, Sefer; Odemis, BerkantWater shortage studies aiming to provide enough fruit yield and quality by using less water in fruit culture is getting important day by day because of global water scarcity and its negative environmental effects. Hence, this experiment was carried out to investigate the effects of different irrigation intervals and amount treatments on yield and fruit quality of young apricot trees (Prunus armeniaca L. cv Ninfa) during the 2008 and 2009 growing seasons under Mediterranean conditions. Seven, fourteen and twenty-one days irrigation intervals and five irrigation water amounts based on reduction coefficients (Kcp) of class A pan evaporation (0.0, 0.25, 0.50, 0.75 and 1.00) were examined. Pomological variables, such as fruit and seed weights, fruit dimension, flesh firmness, flesh/seed ratio, total soluble solids (TSS), pH and acidity (%), were studied. The interaction between irrigation intervals and the irrigation water amount treatments had significant effects on cumulative yield of the trees. While irrigation water amount had significant effects on all pomological characteristics of fruits, irrigation intervals affected only few fruit quality properties such as fruit weight, flesh firmness, flesh/seed ratio, pH and acidity.Öğe Effects of amount and application time of saline water on fibre quality characteristics of cotton(Sciendo, 2005) Odemis, Berkant; Arslan, MehmetCompared with good quality water the use of saline water increases the amount of water used for crop growth. An increased amount of saline water affects fibre quality. A field study was conducted to determine the effects of amount and application time of saline water on the fibre characteristics of cotton. Irrigation was carried out by a line-source sprinkler which allowed the crop to be irrigated at different levels. All of the fibre characteristics measured were significantly and negatively affected by the saline water applied at VGP and FBF whereas at BO, strength and length were the only fibre characteristics that were significantly and positively affected by the saline water applied. Osmotic potential (?) at different growth stages and mean seasonal osmotic potentials significantly by the second power affected trash, trash area and ginning out-turn. The results showed that the saline water amountthe, soil osmotic potential and evapotranspiration (ET) had a squaring effect on fibre characteristics.Öğe Effects of Foliar Sulfur Applications on the Quality of Cotton Plant Fibre Under Water Stress Conditions(Inst Chemical Fibres, 2021) Candemir, Derya Kazgoz; Odemis, BerkantThe research was conducted to determine the effects of Sulfur foliar applications on the fibre quality of cotton plants exposed to water stress at different growth stages in the Amik Plain (Hatay province, Turkey) in 2015 and 2016. Cotton plants were studied in three different developmental stages (vegetative growth period (VG); flowering and boll development period (FB) and boll opening period (BO)) and full irrigation was applied in some periods, while deficit irrigation was applied in the others. Sulfur fertiliser from foliar was applied in different doses (S-0: 0 ml da(-1), S-1: 150 ml da(-1), S-2: 250 ml da(-1), S-3: 350 ml da(-1)). The study was carried out with three replications according to the split plot design. In the research, the effects of the water deficit and sulfur dose applications on gin turnout and fibre quality characteristics at different growth stages were investigated. Results showed that the average spinning consistency index (SCI) decreased by 11.75% due to the water deficit (compared to the treatment of TTT, irrigation in all three crop developmental stages). Similar effects were observed in the fibre length, micronaire, fibre strength and uniformity index values, which were decreased by 7.31%, 4.07%, 5.89% and 2.17%, respectively. The average gin turnout of the irrigated treatment (TTT), in which there is no deficit irrigation, decreased by 2.5% compared to the control treatment (OOO). Similar effects were observed in fibre elongation and short fibre content values which were decreased by 8.43% and 14.60%, respectively. The average S-1 and S-3 sulfur doses increased the gin turnout by 0.44% and 0.35%, respectively, and the S-2 dose decreased it by 0.79%.Öğe The effects of irrigation and fertilizer applications on yield, pomological characteristics and fruit cracking in Nova mandarin(Elsevier, 2014) Odemis, Berkant; Turhan, Senem; Buyuktas, DursunWe studied the effects of different levels of fertilizer and irrigation applications on the yield, fruit cracking and pomological characteristics of Nova mandarin (Citrus reticulate). Two fertilizers, F-1 (NPK) and F-2 (NPK+ Ca(NO3)(2)), and five levels of irrigation of 25%(I-1), 50% (I-2), 75% (I-3), 100% (I-4) and 125% (I-5) of measured Class A pan evaporation were examined in our studies. In addition, a non-irrigated treatment receiving only rain was used as control (I-0). The experiment was conducted under Mediterranean conditions for two seasons during 2007-2008. Plants were watered using drip irrigation. The amount of NPK used in fertilizer treatment was 260 kg ha(-1) N, 103 kg ha(-1) P2O5, 173 kg ha(-1) K2O and 13.2g Fe chelate per tree. Results showed that mandarin's seasonal irrigation water requirement varied between 315 and 1015 mm. Both fertilizer and irrigation levels affected the number of cracks on the fruits. The number of fruit cracked in the F-2 application was on average 58% lower than those in the F-1. The number of fruit cracked in I-1, I-2, I-3, I-4, and I-5 irrigation treatments of F-2 application was 74%, 52%, 65%, 51%, and 50% less than those of F-1, respectively. The highest yields were 32 and 30 t ha(-1) for I-3 in both years regardless of fertilizers. Statistically significant differences were obtained among the irrigation levels for fruit weight, height, size, juice content, brix, total soluble solids/acidity ratio, and seed. When other pomological characteristics in F-1 and F-2 treatments were considered the F-2 had higher mean values than those of F1 in terms of fruit weight (15.0%), total, soluble solids (2.8%), total soluble solids/acidity (7.1%), and seed number (21.7%). However, the F-1 application compared to F-2, increased shell-thickness by 8% and juice content by 9%. It is concluded that Nova mandarins can be irrigated as much as 75% of measured Class A pan evaporation to obtain high fruit yield as well as fewer fruits not cracked under Mediterranean conditions. (c) 2014 Elsevier B.V. All rights reserved.Öğe The effects of sulphur applications on cotton yield and parameters of yield under long-term water stress conditions(Parlar Scientific Publications, 2020) Candemir, Derya Kazgoz; Odemis, BerkantThe study was carried out in the Amik Plain (Hatay province, Turkey) in 2015 and 2016 to determine the effects of foliar sulphur applications on the yield, leaf area index, leaf moisture content and dry matter parameters of cotton plants. In the study, the growth of the cotton plant was divided into three different stages: a) vegetative growth period (V G), b) flowering and boll development period (F B) and c) boll opening period (B O). While at some stages of the growth, a water equivalent to the field capacity was applied (T), at some stages, irrigation water was not supplied (O). During each developmental period, foliar elemental sulphur was applied to the cotton plants at different doses (S 0 : 0 ml da- 1, S 1 : 150 ml da- 1, S2: 250 ml da- 1, S3: 350 ml da- 1). The amount of irrigation water ranged from 91 to 1136 mm and from 149 to 1078 mm in 2015 and 2016, respectively. Evapotranspiration ranged from 311 to 1046 mm and from 303 to 1182 mm in 2015 and 2016. The yield value (480.12 kg da- 1 in 2015 and 499.8 kg da- 1 in 2016) of the treatment of full irrigation at every period (T T T) was determined to be 294.58, and 351.2 kg da- 1 higher than the non-irrigated treatment, with the yield value of 185.54 and 148.6 kg da- 1, respectively. Considering the dry matter amounts in the harvest period, the highest values were obtained in T T T (in 2015 and 2016) from the S3 dose. In the comparison of the aforementioned treatments to the S0 dose, where the lowest amount of dry matter was observed, it was determined that the S3 dose led to an increase of respectively 36.13%, and 67.33% in dry matter. In both years, the lowest yield value for OOO was obtained from the non-sulphur treatment (S 0 ) . The highest yield was obtained from the S3 and S2 doses, in 2015 and 2016, respectively. The yield increased by 59.58% and 27.26% when the values were compared to the dose of S0. © 2020 Parlar Scientific Publications. All rights reserved.Öğe THE EFFECTS OF SULPHUR APPLICATIONS ON COTTON YIELD AND PARAMETERS OF YIELD UNDER LONG-TERM WATER STRESS CONDITIONS(Parlar Scientific Publications (P S P), 2020) Candemir, Derya Kazgoz; Odemis, BerkantThe study was carried out in the Amik Plain (Hatay province. Turkey) in 2015 and 2016 to determine the effects of foliar sulphur applications on the yield, leaf area index, leaf moisture content and dry matter parameters of cotton plants. In the study, the growth of the cotton plant was divided into three different stages: a) vegetative growth period (VG), b) flowering and boll development period (FB) and c) boll opening period (BO). While at some stages of the growth, a water equivalent to the field capacity was applied (T), at some stages, irrigation water was not supplied (0). During each developmental period, foliar elemental sulphur was applied to the cotton plants at different doses (So: 0 ml da(-1), Si: 150 ml da(-1), S-2: 250 ml da(-1), S-3: 350 ml da(-1)), The amount of irrigation water ranged from 91 to 1136 mm and from 149 to 1078 mm in 2015 and 2016, respectively, Evapotranspiration ranged from 311 to 1046 mm and from 303 to 1182 mm in 2015 and 2016. The yield value (480.12 kg da' in 2015 and 499.8 kg da(-1) in 2016) of the treatment of full irrigation at every period (TTT) was determined to be 294.58, and 351.2 kg da(-1) higher than the non-irrigated treatment, with the yield value of 185.54 and 148.6 kg da(-1), respectively. Considering the dry matter amounts in the harvest period, the highest values were obtained in TTT (in 2015 and 2016) from the S-3 dose. In the comparison of the aforementioned treatments to the So dose, where the lowest amount of dry matter was observed, it was determined that the S-3 dose led to an increase of respectively 36.13%, and 67.33% in dry matter. In both years, the lowest yield value for 000 was obtained from the non-sulphur treatment (So). The highest yield was obtained from the S-3 and S-2 doses, in 2015 and 2016, respectively, The yield increased by 59,58% and 27.26% when the values were compared to the dose of S.Öğe The Effects of Water Stress on Cotton Leaf Area and Leaf Morphology(Kahramanmaras Sutcu Imam Univ Rektorlugu, 2023) Odemis, Berkant; Kazgoz Candemir, DeryaThe most important effect of water stress on plants is that it reduces leaf area and leads to changes in leaf morphology. Decreased leaf area results in reduces crop yield through the reduction in photosynthesis. This study investigates the effects of the decrease in leaf area on seed cotton yield, evapotranspiration (ET), water use efficiency (WUE), and leaf geometry in cotton plants under water stress in different growth periods. The cotton plant was divided into three different growth periods (vegetative period (VP), flowering and boll growth period (FB), and boll opening (BO) period), and irrigation water was applied at field capacity level during the periods of full irrigation (T), while non-irrigation was applied during the water stress periods (O). In the experiment, 6 different irrigation strategies were based on: OOO, TTT, OTO, TOO, OTT, and TOT. In each treatment, five leaves were taken from three plants in every replicate during three growth periods, and the leaf area and geometric lengths of each leaf were measured. Seed cotton yield, evapotranspiration, and WUE decreased significantly depending on the severity and duration of the water stress to which the cotton was exposed. Physiologically, cotton leaves under water stress in the first stage of growth tended to increase the leaf lobe numbers while reducing the leaf area. Therefore, there were more leaf lobes numbers measured in OOO than in other treatments. Irrigation in the vegetative growth period was more effective in increasing the leaf area than the other growth periods.Öğe Monitoring water quality and quantity of national watersheds in Turkey(Springer, 2007) Odemis, Berkant; Evrendilek, FatihNational data from the hydrological network for 38 rivers out of 25 watersheds were used to detect spatial and temporal trends in water quality and quantity characteristics between 1995 and 2002. Assessment of water quality and quantity included flow rate, water temperature, pH, electrical conductivity, sodium adsorption rate, Na, K, Ca+Mg, CO3, HCO3, Cl, SO4, and boron. Among the major ions assessed on a watershed basis, Turkish river waters are relatively high in Ca+Mg, Na and HCO3, and low in K and CO3. The watersheds in Turkey experienced a general trend of 16% decrease in flow rates between 1995 and 2002 at a mean annual rate of about 4 m(3) s(-1), with a considerable spatial variation. Similarly, there appeared to be an increasing trend in river water temperature, at a mean annual rate of about 0.2 degrees C. A substantial proportion of watersheds experienced an increase in pH, in particular, after 1997, with a maximum increase from 8.1 to 8.4 observed in Euphrates (P < 0.01). Kendall's tau test revealed increasing trends of EC and SAR concentrations that exceeded existing standards, particularly, in the Meric, kizilirmak and Big Menderes watersheds where intensive agricultural activities take place. Such continued levels may threaten biotic integrity and both drinking and irrigation water quality of rivers. Best multiple linear regression (MLR) models constructed both annually and monthly differed in R-2 values in accounting for variations of pH and water temperature only. The findings of the study can provide a useful assessment of controls over water quality and quantity and assist in devising integrated and sustainable management practices for watersheds at the regional scale in Turkey.Öğe Multivariate analysis of watershed health and sustainability in Turkey(Taylor & Francis Inc, 2008) Odemis, Berkant; Evrendilek, FatihNational hydrological network data between 1970 and 2002 for 96 stations across 25 watersheds were used to monitor annual trends in 13 variables: streamflow rates, water temperature, pH, electrical conductivity (EC), sediment concentration and eight nutrient levels (Na, K, Ca+Mg, CO3, HCO3, Cl, SO4 and boron). The dataset was analysed with multiple linear regression (MLR) models, principal components analysis (PCA) and hierarchical cluster analysis (CA). The Turkish watersheds have experienced a significant increase in pH, K, CO3 and a significant decrease in streamflow rate and sediment concentration between 1970 and 2002, with considerable spatial variations. There was also an increasing trend in streamwater temperature, at a rate of 0.05 degrees C yr(-1) (p > 0.05). The MLR models had high r(2) values of 69.6% to 99.9% at p <= 0.001 for 12 out of the 13 variables, with r(2) of 42% for boron (p < 0.05). PCA reduced the dimensionality of the dataset to four principal components that explain most (81.7%) of the variance. CA was able to distinguish six geographically associated groupings of watersheds with similar attributes in concordance with the climate zones of Turkey, despite the use of different clustering methods (complete, McQuitty, average, centroid and single linkage methods). Multivariate analyses of dynamic watershed characteristics provide the basis on which preventive and mitigative measures can be tailored to secure and enhance watershed health and sustainability.Öğe Quality of shallow groundwater and drainage water in irrigated agricultural lands in a Mediterranean coastal region of Turkey(Springer, 2006) Odemis, Berkant; Bozkurt, Sefer; Agga, Necat; Yalcin, MehmetSpatial and seasonal differences in water quality of drainage water and unconfined shallow groundwater were related to irrigation in Samanda. g, a Mediterranean coastal region. Eighteen wells, seven drainage points and Orontes River were monitored bimonthly for one year for analyses of electrical conductivity (EC), total dissolved solids (TDS), sodium adsorption ratio (SAR), cations (Na, K, Ca + Mg) and anions (CO3, HCO3, Cl and SO4). Agricultural irrigation using saline groundwater decreased water quality of Orontes River during the irrigation season ( May to September) more than during the non-irrigation season ( October to April). Seasonal fluctuations in water quality of shallow groundwater were greater during the irrigation season than the non-irrigation season in the study area. Excessive use of groundwater resulted in a decline in the water table levels in the irrigation season. Water table level rose up to the soil surface in areas where there was a lack of drainage or poor drainage, due to the impact of precipitation in the winter. SAR and pH values of drainage water increased in the irrigation season, while the other properties of drainage water decreased. Irrigation water quality of Orontes River was classified as C3S1 in both seasons. Irrigation water quality of shallow groundwater and drainage water varied from C2S1 to C4S2 in one year. Drainage and well waters were found to be different on yearly basis in terms of Na, SAR (p < 0.01) and Ca + Mg concentrations (p < 0.001). Ca + Mg concentrations for both sources were different for all sampling dates (p < 0.001).Öğe Quantifying long-term changes in water quality and quantity of Euphrates and Tigris rivers, Turkey(Springer, 2010) Odemis, Berkant; Sangun, Mustafa Kemal; Evrendilek, FatihThe Euphrates and Tigris watersheds originating from Turkey and passing through Syria and Iraq are one of the most important transboundary watersheds in the Middle East. Long-term data (1971 to 2002) from 14 stations over the Euphrates river and seven stations over the Tigris river were analyzed and compared using the nonparametric Kruskal-Wallis and Mann-Kendall trend tests, and box-and-whisker plots. The upper Euphrates river had significantly lower values of flow rate (FR), water temperature (WT), electrical conductivity (EC), Cl, and SO4 than did the lower Euphrates river. The middle Euphrates river had significantly higher Na, K, HCO3, Cl, sodium adsorption ratio (SAR), and boron (B) and lower EC and SO4 than the lower Euphrates river. The upper west Tigris river had higher EC, Ca + Mg, and SO4 and lower FR, Na, and SAR than the lower Tigris river. The upper east Tigris river had higher HCO3 and B and lower FR and WT than the lower Tigris river.Öğe THE RESPONSE TO STOMATAL CONDUCTANCE AND CHLOROPHYLL VALUE OF GROUNDNUT GROWN UNDER SALT STRESS IN DIFFERENT DEVELOPMENT STAGES(Univ Agricultural Sciences & Veterinary Medicine Bucharest, 2016) Odemis, BerkantIn this study its response to salinity over different development periods (blooming, ginofor formation and fruit formation and maturation) was determined in the Eastern Mediterranean Region. The experimental design was split plot in a randomized complete block with three replications and was conducted in a total of 180 pots. In the irrigaton of groundnut, saline water with electrical conductivity (ECw) 0.19 dS m(-1) (T-0.19), 3.54 dS m(-1) (T(3.5)4), 7.12 dS m(-1) (T-7.12) and 12.86 dS m(-1) (T-12.86) were used. It was determined that Ginof formation stage was the most sensitive stage to salinity than the other developmental stages. Yield parameters were affected at p < 0.001 level from development stage, irrigation water salinity and the development stage x irrigation water salinity interaction. Chlorophyll values at different salinity levels of stoma conductivity was show that different. The highest and lowest stomatal conductance were realized in T-3.54 (356.025 mmol m(2)s(-1)) and T-12.86 (238.25 mmol m(2)s(-1)) issues. Stomatal conductivity showed differences at different salinity levels. The highest and the lowest stoma conductivity monitored at T-3.54 (356.025 mmol m(2)s(-1)) and T-12.86 (238.25 mmol m(2)s(-1)). It was observed that the at the plots where the highest stoma conductivity determined had the higest yield.Öğe SPATIAL AND TEMPORAL VARIATIONS OF WATER QUALITY PARAMETERS IN ORONTES RIVER (HATAY, TURKEY)(Parlar Scientific Publications (P S P), 2009) Agca, Necat; Odemis, Berkant; Yalcin, MehmetOrontes (Asi) River, which is one of the important water Sources in the Middle East. rises in Lebanon, runs through Syria and Turkey and discharges into the Mediterranean Sea at the southern edge of Samandag, Hatay in Turkey. In this study, it is purposed to determine spatial and temporal variations of physicochemical properties and metal contents of Orontes River. Water samples were taken from 12 sampling sites on the Orontes River at six different periods. Water temperatures were measured at each site at the sampling times. Electrical conductivity (EC), pH. total dissolved solids (TDS), Na, K, Ca, Mg. Al, Ba, Cd, Co, Cr, Cu, Fe, Mn, Ni, P, Pb, Zn, CO(3), HCO(3), and Cl determinations: were made on the water samples. Heavy metal concentrations of the Orontes River were found to be considerably low owing to the relatively low industrial activity in the basin. However, the presence of high concentrations of P especially around Antakya city was possibly due to the untreated sewage sludge discharge into this river. The seasonal and spatial fluctuations in the pH values were not excessive. The EC values at the sampling sites were found to be on the higher range in terms of salinity (754.5-1699.6 mu S cm(-1)). Both the EC and TDS values increased markedly in the rainy season probably due to the contribution of salts leaching from nearby lands. It can be concluded that soluble salts and the high P content are the most critical respective parameters threatening the agriculture and aquatic life in the lower Orontes River basin.Öğe Temporal variations in water quantity and quality of Orontes River, Turkey(Asian Journal Of Chemistry, 2007) Odemis, Berkant; Sangun, Mustafa Kemal; Buyuktas, DursunThe aim of this study was to determine variations in physical and chemical water quality parameters of the Turkish part of Orontes River, whose basin is shared by Lebanon, Syria and Turkey, between 1984 and 2002. Due to very low amount of surface water in the region, groundwater is densely used for irrigation. In this case, it causes an increase in the salinity in some regions of Amik Plain, Hatay, Turkey. As a result of extensive usage of the river for irrigation in the region, the flow rate has decreased significantly. The most important impairment in flow rate occurred in 2000. The value of EC and pH were found to be relatively low in the year of 1984 and then found to increase in 2002. OM level showed a decreasing trend between the years of 1984 and 1992. The total boron content showed yearly periodic cycles and generally had a decreasing trend. The river has a notably fluctuating flow rate and the amount of water varies seasonally. According to the long-term data, the flow rate was falling to an average value of 3.66 m(3) s(-1) in August. Organic pollutant parameters (TDS, BOD and COD) fluctuated at rainy, transitional and dry seasons. Between 1999 and 2001, TDS and COD values showed an increasing trend, while BOD levels showed a decreasing trend.