Abstract：Since environmental behavior and effect of dissolved organic matter depend mainly on its physicochemical properties, a series of physicochemical and spectroscopic experiments was employed to investigate fractionation and characterization of dissolved organic matter (DOM) derived from pig manure, sewage sludge and green manure, commonly applied in agriculture. The contents of DOM were 122, 23793, 12904 and 380560 mg C/kg for paddy soil, sewage sludge, pig manure and green manure, respectively. On the basis of the content of high molecule fraction, the DOM could be arranged in the following order: paddy soil (51.08%)>pig manure (41.25%)>sewage sludge (23.33%)>green manure (7.36%). The tendency in content of polar fraction was reverse, i.e., paddy soil (10.71%)pig manure DOM(1.12)>sewage sludge DOM(1.11)>green manure DOM(0.98), and UV spectra of DOM further confirmed the order.
占新华, 周立祥, 卢燕宇. 农业常用有机物料中水溶性有机物的理化性质特征[J]. 中国环境科学, 2010, 30(5): 619-624.
ZHAN Xin-Hua, ZHOU Li-Xiang, LU Yan-Yu. Fractionation and characterization of dissolved organic matter derived from different organic material commonly applied in agriculture. CHINA ENVIRONMENTAL SCIENCECE, 2010, 30(5): 619-624.
