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本文利用NOAA/AVHRR卫星资料分析了章古台地区不同生境的反射率及地表温度,并研究了防护林体系对辐射平衡和表面温度的影响。结果表明,固沙造林可使辐射平衡由占总辐射的46％提高到57％,白天地面有效辐射由占总辐射的35％减小到29％,表面温度日较差由13.0—14.0℃减小到2.0—3.5℃。
In this paper, the NOAA / AVHRR satellite data were used to analyze the reflectance and surface temperature of different habitats in Zhanggutai area. The effects of shelterbelts on the radiation balance and surface temperature were also studied. The results show that afforestation can increase the radiation balance from 46% to 57% of the total radiation, decrease the effective radiation from 35% to 29% of the total radiation during the day, and decrease the surface temperature from 13.0-14.0 ℃ To 2.0-3.5 ° C.