Soil temperature trends in Büyük Menderes Basin, Turkey

Meteorological applications

article

Ercan Yeşilırmak¹ 

[1] Department of Agricultural Structures and Irrigation, Faculty of Agriculture, Adnan Menderes University

关键词: soil temperature;    trend analysis;    climate change;    air temperature;    rainfall;    sunshine duration;   

DOI  :  10.1002/met.1421

学科分类：社会科学、人文和艺术（综合）

来源: Wiley

【 摘 要 】

Soil temperature change is reported to be an important indicator of climate change, as soil temperature integrates all processes occurring at and above the soil surface. Analysis of long-term trends in soil temperatures and their relationship to climatic variables could provide valuable information on climate change. In this study, soil temperature trends were analysed on seasonal and annual scales at depths of 5, 10, 20, 50 and 100 cm over the period from the 1970s to 2006 at eight sites in the Büyük Menderes Basin in Western Turkey. Also, air temperature, rainfall and sunshine duration records were analysed for trends, and for their correlations with soil temperatures. The results showed a general increase in soil temperatures at all depths and in all seasons. The most significant warmings were observed in summer, especially in the upper layers (5, 10 and 20 cm). The trend magnitudes ranged from −0.91 to 2.05 °C decade −1 , depending on site, season and depth. It was observed that air temperature had a clear and dominant influence on soil temperature change. Soil temperatures were also affected by sunshine duration and rainfall. These findings are expected to contribute to our understanding of the linkage between soil temperature change and global warming.

【 授权许可】

CC BY|CC BY-NC|CC BY-NC-ND