摘要
确定了新疆红外光与紫外光在太阳总辐射中所占的比例 ,对各地红外与紫外辐射能量进行了计算 ,分析了它的时空分布规律、沙漠腹地变化及其随海拔高度的变化 ,阐述了这种分布对农牧业生产的影响。
Solar radiation is one of the main agroclimatic resources. Three wave ranges of the spectrum in the solar radiation are infrared, visible and ultravioled light radiations. As infrared radiation provides with thermal effect and ultraviolet radiation provides with biological and chemical effect, their quantity and characteristics greatly affect the growing, yielding and quality of crops. Thus, using the 30 year solar radiation data from 9 solar radiation stations in Xinjiang, the solar radiation at 100 odd stations is calculated in this paper. The proportions of infrared and ultraviolet radiations in total solar radiation are defined, i.e., infrared radiation occupies 0.50 and ultraviolet only 0.07.The annual infrared radiation is 2 549～3 170MJ·m -2 ·a -1 and ultraviolet radiation 356～444, their distribution laws show that infrared and ultraviolet radiations in south part of Xinjiang are more than that in north part. The maximum values of infrared and ultraviolet radiations occur in Lop Nur Lake region in Hami, they are 3 170MJ·m -2 ·a -1 and 444MJ·m -2 ·a -1 respectively; the minimum values of which appear in Junggar Basin, they are 2 549MJ·m -2 ·a -1 and 356MJ·m -2 ·a -1 respectively. The annual variations of infrared and ultraviolet radiation are in an unimodal pattern, the maximum value in winter is 2.79MJ·m -2 ·d -1 ; the maximum value of ultraviolet radiation in summer is 0.86MJ·m -2 ·d -1 and its minimum value in winter is 0.34MJ·m -2 ·a -1 infrared and ultraviolet radiations in Kelamayi in the west Junggar Basin and in the west part of Tarim basin are 2 548.7MJ·m -2 ·a -1 , 178.4MJ·m -2 ·a -1 ; 2 856.5MJ·m -2 ·a -1 and 200.0MJ·m -2 ·a 01 respectively. The infrared and ulatraviolet radiations increase 9.88MJ·m -2 ·a -1 and 1.19MJ·m -2 ·a -1 respectively with the rising of elevation per 100m.
出处
《干旱区地理》
CSCD
北大核心
2000年第2期116-122,共7页
Arid Land Geography
关键词
红外辐射
紫外辐射
时空分布规律
新疆
infrared radiation
ultraviolet radiation
distribution law.
