Hydrochemical assessment of seawater intrusion in Gumuldur region

International Symposium on Techniques to Control Salination for Horticultural Productivity -- NOV 07-10, 2000 -- ANTALYA, TURKEYWOS: 000176732300017Gumuldur region is one of the most important citrus growing areas in Turkey. Groundwater is the main irrigation water source and the groundwater salinization has become an important threat for citrus. This research was carried out to assess seawater intrusion between 1995 and 1997 in Gumuldur-Arapyeri district. Totally 10 groundwater wells, which have been used for irrigation of Satsuma mandarin orchards were selected for sampling from seashore to inland. Three years average of EC and Cl values, Na/Cl, Na/K and SO4/Cl ratios of irrigation water were used to determine the extension and detection of seawater intrusion. Results have revealed that seawater intrusion was effective particularly within 0 - 1050 m.TSHS, EUFA, CIHEAM IAMB, Int Soc Hort Sc

Response of Satsuma mandarin (Citrus unshiu Marc.) trees budded on Tifoliate orange (P-trifoliata) to salinity due to seawater intrusion

International Symposium on Techniques to Control Salination for Horticultural Productivity -- NOV 07-10, 2000 -- ANTALYA, TURKEYWOS: 000176732300030The research aimed at assessing the level of sea water intrusion as well as its impact on productivity of Satsuma trees. Salinity parameters of irrigation water and soil, physiological parameters as photosynthesis and transpiration rates, relative water content, and stomatal density and fruit yield were determined. Most of the sampling was carried out prior to and during the period of irrigation in summer and during harvest. Among the analysed parameters, transpiration (E), photosynthesis (A) and water use efficiency (WUE=A/F,), leaf area, stomatal density and relative water content (RWC), were found to be highly correlated and representing the case. The yield was reduced drastically towards the sea line with increasing salinity. All the determined salinity parameters proved to exert cumulative adverse effect on yield and tree vigour. The unit gas exchange capacity of the leaf was reduced parallel to the decreases in leaf area and stomatal density.TSHS, EUFA, CIHEAM IAMB, Int Soc Hort Sc