Position: Home > Articles > Spectroscopic characteristics comparison of conventional fluorescence of dissolved organic matter with solid surface fluorescence during composting
Transactions of the Chinese Society of Agricultural Engineering
2010,26
(10)
272-276
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
作 者：
何小松;席北斗;魏自民;李鸣晓;安达;余红;刘鸿亮
单 位：
东北农业大学生命科学学院;北京师范大学环境学院;中国环境科学研究院水环境系统工程研究室
关键词：
堆肥原样;水溶性有机物;常规荧光光谱;固体表面荧光
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5.1g/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殖质荧光。研究表明,固体表面荧光中同步荧光光谱可用来表征堆肥有机质结构及物质转化特征。
译 名：
Spectroscopic characteristics comparison of conventional fluorescence of dissolved organic matter with solid surface fluorescence during composting
作 者：
He Xiaosong1,2,Xi Beidou2,Wei Zimin3,Li Mingxiao2,An Da1,2,Yu Hong2,Liu Hongliang2(1.School of Environment,Beijing Normal University,Beijing 100875,China;2.Laboratory of Water Environmental System Engineering,Chinese Research Academy of Environmental Sciences,Beijing 100012,China;3.College of Life Science,Northeast Agricultural University,Harbin 150030,China)
关键词：
compost,dissolved organic matter,fluorescence spectroscopy,solid surface fluorescence
摘 要：
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 samples at different stages during composting were obtained.The changes of carbon contents of two kinds of materials,the conventional fluorescence spectroscopy of dissolved organic matter and the solid surface fluorescence of original compost samples were analyzed.The results showed that the proportion of dissolved organic matter to total organic matter persisted to drop during the process;and the value decreased to 5.1 g/kg after 40 days composting.The fluorescence intensity of conventional fluorescence emission and excitation spectra increased during composting,while only the fluorescence peak intensity of humus-like matter in the synchronous fluorescence spectra increased.The intensity of the solid surface fluorescence of original compost sample in emission,excitation and synchronous scan mode all persisted to drop along during composting.In all three kinds of fluorescence scan modes,synchronous fluorescence spectroscopy were similar both in dissolved organic matter and original compost samples,the humic-like and protein-like fluorescence appeared both in dissolved organic matter and solid samples.The results demonstrate that the synchronous scan mode of solid surface fluorescence of original compost can be used to characterize the composition and transformation of organic matter during composting.
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