Salda Gölü Havzası’nda İklim Koşullarındaki Değişikliğin Etkilerinin Belirlenmesi (Determination of Climatic Conditions Changes Impacts on Lake Salda Basin)

Abstract

The purpose of this study is to examine the climate conditions changes impact on Lake Salda in Turkey, a wetland with a vulnerable ecosystem that is considered a Key Biodiversity Area. Lake Salda, the area of the study, is located in the Lakes Region in southwestern of Turkey. To reveal the impact of climate change on the lake basin a.) Linear Trend and Mann-Kendall Rank Correlation Test for average temperature and total precipitation data of Burdur, Tefenni and Acıpayam meteorological station for the Years 1970-2019 b.) Spatial analysis and GIS for determining the areal change using the October 1972 Landsat ERTS-1, September 1984 Landsat 5 TM, 1990 Landsat 5 TM, 2000 Landsat 7 ETM+, 2010 Landsat 5 TM and 2019 Landsat 8 OLI satellite images c.) Lake level change graph has been created using annual average and October lake level data for many years. According to results, the trend of increasing statistical significance level of α = 0.05 in annual average temperatures over the 50 year period and was detected an increasing change in temperatures trend after the year of 2000 when u (t) and u´ (t) values intersected. Despite this, no significant trend or change in the annual total precipitation amounts was able to be detected. As a result of Spatial Analysis with GIS, 4.6% decrease was observed in the lake surface area between 1972-2019 and statistical analysis of the climate data and satellite images Lake Salda, like many of the lakes in the Lakes Region, has been determined to also be faced with the negative effects of climate change.