Poljes in the Sivas gypsum karst, Turkey

Gökkaya, Ergin; Gutiérrez, Francisco

doi:10.1016/j.geomorph.2022.108451

Cited by 3 publications

(1 citation statement)

References 62 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Worldwide, sinkholes are among the most significant geological hazards in karst areas, leading to negative consequences in terms of economic losses and loss of human life [18][19][20]. Some of the most destructive sinkholes have formed in Wink, TX, USA [21]; southeastern Minnesota, USA [22]; Nash Draw, southeastern New Mexico, USA [23]; Tournaisis, southern Belgium [24]; Apulia, southern Italy [25]; Naples, southern Italy [26]; Ebro River valley, Spain [27]; the shores of the Dead Sea [28,29]; Hamedan, Iran [30]; Sivas, Turkey [31]; Konya, Turkey [14]; and Karapınar, Turkey [32,33]. Gutiérrez (2016) provided a compilation of some of the most damaging sinkhole events in carbonate and evaporite karst areas [34].…”

Section: Introductionmentioning

confidence: 99%

Spatial and Temporal Patterns of Land Subsidence and Sinkhole Occurrence in the Konya Endorheic Basin, Turkey

Orhan,

Haghshenas Haghighi,

Demir

et al. 2023

Geosciences

Self Cite

View full text Add to dashboard Cite

The endorheic Konya Basin is a vast aggradational plain in Central Anatolia, Türkiye. It occupies a significant portion of Konya Province, covering approximately 50,000 km2. The basin is subjected to intense groundwater withdrawal and extensive agricultural activities with excessive irrigation. These activities have led to human-induced hazards, such as sinkholes and regional land subsidence. Although sinkhole occurrence mainly occurs in the Karapınar area, land subsidence is primarily observed in the central sector of Konya city, with 2 million inhabitants, as well as in various parts of the basin. This study focuses on determining the extent and rate of land subsidence throughout the basin, understanding sinkhole formation, and unraveling their relationship with anthropogenic activities. For this purpose, Interferometric Synthetic Aperture Radar (InSAR) analysis of Sentinel-1 data from 2014 to 2022 was conducted to identify and assess land subsidence. We also used the land cover data and groundwater-level information to better understand the spatial and temporal patterns of land subsidence and sinkhole occurrence. Additionally, the land cover data were used to resolve spatial–temporal variations in the cultivated area and urbanization, which are the main factors governing groundwater exploitation in the region. Our study identified widespread subsidence zones with rates as high as 90 mm/y. Groundwater overexploitation to sustain extensive agricultural operations is the main cause of the high rate of land subsidence. Additionally, it was discovered that the number of sinkholes has substantially increased due to anthropogenic influences, currently amounting to as many as 660.

show abstract