光辐射对农业土壤的影响

核爆炸产生的光辐射，能量大，发射率高，在一定数值内可使土壤表层熔融，沸腾，并随着光冲量值的减弱轻。表层熔融的土壤，机械组成有微小的变化，有机质，全氮量有部分减少，但不影响整个耕层土壤的耕作性能，在此土壤上种植农作物，生长良好，产量正常。

EFFECT OF LIGHT RADIATION ON SOIL

Light radiation produced by atomic burst has a kigh energy with very high emitting rate. Within a certain range of soil depth,the light radiation could make arable soil melt or boil. The damage to the soil was rapidly reduced with the decrease of the light radiation intensity. With the light radiation,the structure of meIted surface soil had been changed a little andthe organic matter and nitrogen content were partly decreased.However,the property or thewhole tillaged layer of the soil was not affected.Crops planted in the irradiated soil grew asusual and the yields were at normal levels.