堆肥过程中水溶性有机物常规荧光与固体表面荧光光谱比较

Spectroscopic characteristics comparison of conventional fluorescence of dissolved organic matter with solid surface fluorescence during composting

摘要: 为研究固体表面荧光表征堆肥有机质结构及物质转化特征的可行性，采集堆肥原样，提取水溶性有机物，分别对两者的含碳量及前者的固体表面荧光和后者的常规荧光光谱进行分析。结果显示：堆肥过程中，水溶性有机物占总堆肥有机物的比例不断下降，第40天降至5.1 g/kg。堆肥进行时，水溶性有机物的发射、激发光谱及同步荧光光谱中的类腐殖质荧光的强度均不断增强，而堆肥原样的激发、发射和同步3种扫描形式的固体表面荧光却不断降低。3种荧光光谱中，堆肥原样和水溶性有机物的同步荧光光谱在常规荧光光谱和固体表面荧光中都出现了类蛋白和类腐

Abstract: For the purpose of identifying the ability whether solid surface fluorescence of original compost can be used to characterize the composition and transformation of organic matter during composting, dissolved organic matter and the original compost sample