Abstract
Forests and wetlands played a crucial role in minimizing the increasing trends of land surface temperature (LST). This study aimed to analyze the contribution of forests and wetlands on LST in Yayo district using multi-spectral and multi-temporal satellite. Landsat images of 1986, 2003 and 2021 were downloaded from United State Geological Survey website with 30 m spatial resolution. Results show that the mean LST was increased from 22.8 °C in 1986 to 27 °C in 2003 over cultivated land. As the results of forest conservation and wetland protection, the LST in Yayo district is experencing a declining trend in the recent year. Result reveal that the normalized difference vegetation index and Normalized Difference Water Index show a strong negative relationship with LST. Over the last two decades, the LST was declined by 1.5 °C due to the protection of forest and wetland ecosystem. Thus, governmental and non-governmental organization should encourage the conservation and protection of forest and wetland ecosystems.
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