Monitoring of Groundwater Level Change with Geographical Information System (GIS), The Case of Konya Altınekin Basin

Year 2021, Volume: 21 Issue: 3, 620 - 631, 30.06.2021

Süleyman Savaş Durduran , Aslı Bozdağ , Cafer Tayyar Okka Tansu Alkan

https://doi.org/10.35414/akufemubid.889321

Cited By: 1

Abstract

Among the groundwater resources in Turkey, there are quite important basins with their agricultural land use characteristics and ecological characteristics. One of them, Konya Closed Basin (KCB), along with its sub-basins, has Turkey's grain reserves. However, over the last years, over-exploitation of groundwater resources, water-level reductions have become a threat to the ecological structure of the sinkholes and the basin. In order for this process to be analysed with all its causes and measures can be taken, it is necessary to monitor and record the changes that are experienced. In this context, Geographical Information System (GIS) is important as a system that can demonstrate the change in the basin. In this study, the change of groundwater level was investigated with the help of GIS, in order to protect the ecological balance in the KCB Altınekin Basin, where significant decreases in groundwater level have been experienced in recent years. The change in the data of 2015 and 2016, which was obtained from 10 water wells where the groundwater level in this basin was identified, was analysed with the aid of GIS. It has been found that the groundwater level in the basin changes with agricultural land use characteristics, daily use, and climatic changes.

Keywords

GIS, Groundwater level change, Climatic changes, Konya Altınekin Basin

Yeraltı Suyu Seviyesi Değişikliğinin Coğrafi Bilgi Sistemi (CBS) ile İzlenmesi, Konya Altınekin Havzası Örneği

Abstract

Türkiye'deki yeraltı suyu kaynakları arasında tarımsal arazi kullanım özellikleri ve ekolojik özellikleri ile oldukça önemli havzalar bulunmaktadır. Bunlardan biri olan Konya Kapalı Havzası (KKH) alt havzalarıyla birlikte Türkiye'nin tahıl rezervlerine sahiptir. Bununla birlikte, son yıllarda yeraltı suyu kaynaklarının aşırı kullanımı, su seviyesinin düşürülmesi, obrukların ve havzanın ekolojik yapısı için bir tehdit haline geldi. Bu sürecin tüm nedenleri ile analiz edilebilmesi ve önlemlerin alınabilmesi için yaşanan değişimlerin izlenmesi ve kayıt altına alınması gerekmektedir. Bu bağlamda Coğrafi Bilgi Sistemi (CBS), havzadaki değişimi gösterebilen bir sistem olarak önemlidir. Bu çalışmada, son yıllarda yeraltı suyu seviyesinde önemli düşüşlerin yaşandığı KKH Altınekin Havzası'nda ekolojik dengenin korunması amacıyla yeraltı suyu seviyesinin değişimi CBS yardımı ile araştırılmıştır. Bu havzadaki yeraltı suyu seviyesinin tespit edildiği 10 adet su kuyusundan elde edilen 2015 ve 2016 verilerindeki değişim CBS yardımı ile analiz edilmiştir. Havzadaki yeraltı suyu seviyesinin tarımsal arazi kullanım özelliklerine, günlük kullanıma ve iklim değişikliklerine göre değiştiği tespit edilmiştir.

Keywords

CBS, Yeraltı suyu seviyesi değişikliği, İklim değişikliği, Konya Altınekin Havzası

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