光照对土壤微观结构及土壤元素影响

Effect of Light on Soil Microstructure and Soil Elements

摘要: 光照具有一定的能量，因此能够在辐射土壤时改变土壤的微观结构与土壤中所含的元素。本文通过研究在白光照射下，土壤中全氮与有机碳的变化，结果表明：光照对土壤中有机碳具有活化作用；光照使得土壤中原有有机质暴露，加速了有机质的分解，从而使有机碳总含量下降。通过研究光照对土壤微观结构的变化，结果表明：红外光对土壤结构没有影响，紫外光会改变土壤结构。

Abstract: Light has certain energy, so it can change the soil microstructure and the elements in the soil when it radiates the soil. In this paper, the changes of total nitrogen and organic carbon in the soil under white light were studied. The results showed that: the light had an activation effect on the organic carbon in the soil; the light exposed the organic matter in the soil, accelerated the decomposition of organic matter, and reduced the total content of organic carbon. The results show that the infrared light has no effect on the soil structure, and the ultraviolet light can change the soil structure.