Forest ecological services of regulating temperature based on remote sensing technology

The paper took Shandong Province´s forest resources as the object of study, and studied on the temperature regulation of forest ecological service for different tree species and different seasons during 2000-2006 by using MODIS temperature product, vegetation index product, the field surveying data and the meteorological data in Shandong, combining with GIS. The results were as the followed: 1) Forest had cooling effect in summer and warming effect in winter, but cooling effect more obvious than warming effect; forest regulation temperature at night not more obvious than during the day; 2) In the day, LST and NDVI of forest were negative correlation in summer, but they were positive correlation in the winter; in the evening, LST and NDVI had no correlation at all; 3) The forest temperature changes amplitude ratio was smaller than farms, urban, and the farms cooling and warming effect was not more obvious than forest; 4) The correlation of the LST change and the NDVI change was negative.