Assessment of the effects of the shelterbelt on the soil temperature at regional scale based on MODIS data |
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| Authors: | Rong-xin Deng Ying Li Shu-wen Zhang Wen-juan Wang Xiao-liang Shi |
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| Institution: | (1) Department of Natural Resource Ecology and Management, Iowa State University, Ames, IA 50011, USA |
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| Abstract: | At present, the most researches on the protected effect of shelterbelt are on the basis of the two scales of forest belts
and networks. However, with the further research on the global environmental change, more attention was paid to the regional
climate effect of shelterbelt. In present study, we analyzed the temperature effect of the shelterbelt at regional scale by
using the land surface temperature (LST) data from the moderate resolution imaging spectroradiometer (MODIS) at Yushu, Nong’an,
Dehui, and Fuyu in Jilin Province of China from March to October in 2008. Results show that the shelterbelt can increase the
soil temperature of the protected farmland as compared with no shelterbelt zone, with the increment of 0.57°C per day in fine
shelterbelt and 0.38°C per day in the normal shelterbelt. Moreover, the correlation analysis of the air temperature, precipitation
and the soil type and the shelterbelt effect shows that the air temperature and precipitation are negatively correlated with
the shelterbelt effects, that is, the more the temperature and precipitation are, the less the effect produced. While the
impact of the soil types on the shelterbelt’s effect is not very obvious as a whole. This paper draws significance in terms
of analyzing the effects of the shelterbelt on the soil temperature at regional scale utilizing the remotely sensed data and
GIS technique. |
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