Portal de Periódicos da CAPES

Bafra Ovası Sağ Sahil Sulama Alanındaki Tuzluluk Dağılımının Coğrafi Bilgi Sistemleri (CBS)Kullanılarak Belirlenmesi / Determination of Salinity Distribution Using GIS in Bafra Plain Right Land Irrigated Area

2006; Faculty of Agriculture, Kyushu University; Volume: 37; Issue: 1 Linguagem: Inglês

10.17097/zfd.53100

1300-9036

Bilal Cemek, Mustafa Güler, Hakan Arslan,

Agricultural and Rural Development Research

Ozet: Bu arastirmada, Bafra Ovasi sag sahil sulama alaninda bulunan tarim arazilerinin tuzluluk durumu ve bunlarin mevsimsel olarak degisimlerinin Cografi Bilgi Sistemleri (CBS) kullanilarak belirlenmesi amaclanmistir. Arastirma alaninda, tuzluluk dagiliminin belirlenmesi icin 60 farkli noktadan ve 0–30, 30–60, 60–90 ve 90–120 cm derinliklerden Agustos 2003 ve Mart 2004 tarihlerinde toprak ornekleri alinmis ve laboratuar analizleri yapilmistir. Arastirma sonucunda Agustos 2003 tarihinde calisma alaninin % 17 sine karsilik gelen 1 404 ha alanda tuzlulugun 4 dS/m’den fazla oldugu, Mart 2004 tarihinde ise ayni tuzluluk degerine sahip alanin % 1’e dustugu belirlenmistir. Sonbahar ve kis yagislari ile yikanmanin fazla olmasina ragmen denize yakin bolgelerde drenaj sisteminin tamamlanmamis olmasi nedeniyle tuzluluk probleminin devam ettigi tespit edilmistir. Toprak profilleri goz onunde alindiginda yuzeyden asagiya dogru gidildikce tuzlulugun arttigi belirlenmistir. Anahtar Kelimeler: Taban Suyu, Tuzluluk, Cografi Bilgi Sistemleri Determination of Salinity Distribution Using GIS in Bafra Plain Right Land Irrigated Area Abstract: In this study, it was aimed to determine salinity properties and seasonal variation using Geographical Information Systems (GIS) in Bafra Plain right land irrigated area. To achieve the purpose, soil samples were taken 60 different points and 0-30, 30-60, 60-90 and 90-120 cm depth of soil profiles in August 2003 – March 2004 and analyzed in the laboratory. Result of study, electrical conductivity values were found above 4 dS/m in the part 14% of total area (1404 ha) in August 2003. But this area decreased to %1 in March 2004. Although leaching has increased by autumn and winter precipitation, it was determined that salinity problem has continued as drainage system has not been completed yet in the coastal region. In addition, soil salinity increased from surface to the lower depth. Key words: Ground Water, Salinity, Geographical Information Systems