吉林大学学报（理学版）2017，Vol.55Issue(3)：733-738,6.DOI:10.13413/j.cnki.jdxblxb.2017.03.46
不同土地利用方式对苏打盐碱土水溶性有机物荧光特性的影响
Effects of Fluorescence Characteristics on Water Extractable Organic Matter in Soda Saline-Alkali Soil under Different Land Use Patterns
摘要
Abstract
By using the technology of three-dimensional fluorescence spectroscopy,we studied the effects of fluorescence characteristics on water extractable organic matter in soda saline-alkali soil (grassland,dry farmland,paddy field)under different land use patterns in the west of Jilin Province. The results show that the mass ratio of organic matter in paddy field is the highest,27.08 g/kg, while the mass ratio of organic matter in grassland is the lowest,21 .63 g/kg.The mass ratio of water extractable organic matter (WEOM ) is paddy field > dry farmland > grassland. The aromatic concentration is grassland > paddy field > dry farmland, and the values are 3.90,3.79, 3.31 L/(mg·m).The fluorescence intensity of region Ⅲ and region Ⅴ is the highest in three-dimensional fluorescence spectra of WEOM.The integral values of WEOM fluorescence region are humic acid-like>fulvi acid-like>soluble microbial byproduct-like substance>tyrosine-like protein>tryptophan-like protein.The mass ratios of fulvic acid-like are grassland>dry farmland>paddy field, the mass ratios of soluble microbial byproduct-like substance are paddy field>dry farmland>grassland,and the mass ratios of humic acid-like are dry farmland>grassland>paddy field.It indicated that different land use had significant effect on the mass ratio and composition of WEOM in soil.关键词
土地利用方式/苏打盐碱土/水溶性有机物/荧光特性Key words
land use pattern/soda saline-alkali soil/water extractable organic matter/fluorescence characteristics分类
资源环境引用本文复制引用
李亚男,武俊男,高云航,高强,刘淑霞..不同土地利用方式对苏打盐碱土水溶性有机物荧光特性的影响[J].吉林大学学报（理学版）,2017,55(3):733-738,6.基金项目
吉林省自然科学基金(批准号:20170101077JC)、吉林省科技发展计划项目(批准号:20160307006NY)和现代农业产业技术体系建设专项基金(批准号:nycytx-38). （批准号:20170101077JC）
