MEHMET ZENGİN, Fethi BAYRAKLI, Ümmühan ÇETİN

Properties of irrigation water quality in Konya closed basin

Bu araşürma, 1999 yılı Haziran, Temmuz ve Ağustos aylarında Konya Kapalı Havzasının değişik yerlerinden toplanan 90 adet (3 ay x 30) sulama suyu (15 adet yerüstü + 15 adet yeraltı) örneği üzerinde yürütülmüştür. Örnekle-rin pH, EC, $Ca^{++}$, $Mg^{++}$, $Na^{+}$, $K^{+}$, $CO_3^{--}$, $HCO_3^{-}$, $Cl^{-}$, $SO_4^{--}$ ve B analizleri yapılmış ve bu sonuçlardan dayararlana-rakBSK, SAO ve kalite sınıflan belirlenmiştir. Araştırma sonuçlarına göre, yerüstü sularında bir örnek (May Barajı) yüksek pH değerinden (8.70) dolayı sakıncalı bulunmuştur. Tüm yerüstü sulan EC, B, SAO ve BŞK yönünden sula-mada uygundurlar. Çayhan Göleti suyunun analiz sonuçlan diğer yerüstü sulama sulannınkinden genellikle daha yüksek çıkmıştır. Yeraltı sularında ise çok yüksek EC değerlerinden dolayı iki örnek (Sazlıpınar ve Küçükaşlama) sakıncalı bulunmuşlardır. B, SAO ve BSK yönünden bir problem yoktur. Sazhpınar suyunun analiz sonuçlan diğer yeraltı sulama sulannınkinden genellikle daha yüksek çıkmıştır. Yerüstü sularının pH ve B değerleri yeraltı sularınınkinden daha yüksek, EC, toplam katyonlar, toplam anyonlar, SAO, BSK ve kalite sınıfı ($C_xS_x$) ise daha düşük olarak belirlenmiştir.

Anahtar Kelimeler:

su kalitesi, sulama suyu, tuzluluk

Konya kapalı havzası sulama sularının özellikleri

This investigation was carried out on 90 irrigation water samples collected from various places of Konya Closed Basin in irrigation period (June, July and August), 1999, The samples were analysed to determine pH, EC, $Ca^{++}$, $Mg^{++}$, $Na^{+}$, $K^{+}$, $CO_3^{--}$, $HCO_3^{-}$, $Cl^{-}$, $SO_4^{--}$ and B ions, and from these data RSC, SAR and quality classes calculated. The results showed that one surface water sample (May Dam) was found not suitable due to its high pH value of 8.70. The other surface waters were found suitable for irrigation related to their EC, B, SAR and RSC values. In general, the parameters measured on Çayhan Pond water were higher than those of the other surface waters. However, two underground samples were found unsuitable because of very high EC values. Normal values ofB, SAR and RSC were found in the underground waters. The data ofSazhpmar were generally higher in comparison to other andergraund waters. The pH and B values of surface waters were higher, whereas EC, total cations, total onions; SAR, RSC and quality classes were lower than those of underground waters

Keywords:

water quality, irrigation water, salinity,

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