干旱区生态环境知识资源中心(Arid): 西北灌漠土长期不同施肥改变土壤可溶性有机质的化学及光谱学特性

Arid

	西北灌漠土长期不同施肥改变土壤可溶性有机质的化学及光谱学特性
其他题名	Long-Term Different Fertilizations Changed the Chemical and Spectrum Characteristics of DOM of the Irrigation-Desert Soil in North-WesternChina
	常单娜 1; 曹卫东 1; 包兴国 2; 白金顺 1; 张久东 1; 卢秉林 1; 高嵩涓 1; 曾闹华 1; 王雪翠 1; 志水胜好 3
来源期刊	光谱学与光谱分析
ISSN	1000-0593
出版年	2016
卷号	36 期号:1 页码:220-225
中文摘要	依托在河西走廊灌漠土上开始于1988年的长期定位试验, 利用紫外-可见光谱、红外光谱、元素分析等方法研究了不同施肥处理下土壤可溶性有机质(DOM)的变化。试验设施用有机肥、绿肥、化肥和不施肥对照4个处理。结果表明, 施肥增加DOM的含量, 相比对照处理, 有机肥处理、绿肥处理、化肥处理的可溶性有机碳(DOC)分别增加37%, 29%, 16%, 可溶性有机氮(DON)分别增加334%, 257%, 182%, 总碳水化合碳(TCs)分别增加90%, 25%, 2%, 总有机酸碳(TOAs)分别增加195%, 116%, 58%。有机肥处理各指标比对照处理均差异显著, 除TCs外绿肥处理、化肥处理的其他指标也比对照处理差异显著。紫外-可见光谱结果, 施肥提高了DOM的紫外吸收特征值SUVA_(254), SUVA_(260), SUVA_(272), SUVA_(280), 表明施肥增加了DOM的芳香及疏水部分比例、腐殖化程度、平均分子量, 使DOM更趋于稳定。不同施肥处理间表现出相当一致的规律, 有机肥效果最为明显, 其次是绿肥、化肥。红外光谱分析结果, 有机肥处理相对于其他处理芳香族特征峰从1625 cm~(-1)处向近红外方向移动出现在1649 cm~(-1)处, 接近土壤胡敏酸芳香族特征峰(1650 cm~(-1)), 说明有机肥处理土壤DOM的芳香性更高。绿肥处理在归属于糖、醇类及羧酸物质C-O伸缩振动的1260~1000 cm~(-1)吸收峰高于其他处理, 说明绿肥处理增加了土壤DOM的富氧基团类物质。化肥处理在归属于N-H振动的3559, 3419和1456 cm~(-1)吸收峰高于其他处理, 表明化肥增加了土壤DOM的胺类物质。元素分析结果显示有机肥、绿肥、化肥分别增加了C,O, N的相对含量。
英文摘要	By using Ultraviolet-visible Spectrometry, Fourier Transform Infrared Spectrometer and Elemental Analyzer, spectrum and chemical characteristics of soil DOMaffected by long-term different fertilizations were investigated in irrigation-desert soil in North-western China based on an experiment started from 1988. Four different fertilization treatments were included, i.e., organic fertilizer (OF), green manure (GM), chemical fertilizer (CF) and a control of no fertilization (CK). The results showed that fertilization could increase the contents of DOM. Compared to CK, the treatments of OF, GM, CF increased the dissolved organic carbon (DOC) by 37%, 29%, 16%; increased the dissolved nitrogen (DON) by 334%, 257%, 182%; increased the total carbohydrate (TCs) by 90%, 25%, 2%; and increased the total organic acids (TOAs) by 195%, 116%, 58%; respectively. Furthermore, DOC, DON, TCs, and TOAs in the OF treatment were significantly higher than those in CK, they were also significantly higher in the GM and CF treatments except for TCs. The ultraviolet-visible analysis showed thatfertilizations enhanced the SUVA_(254), SUVA_(260), SUVA_(272) and SUVA_(280) of DOM, indicating that fertilizations increased the aromatic and hydrophobic percentage, humification degree, and average molecular weight, and thus resulting in more stability of DOM. Same trends were showed for all the 4 ultraviolet spectrum absorption values in different fertilizations, i.e., the strongest effect was found in the OF treatment, and then was the GM treatment and CF treatment successively. From the results by the Fourier Transform Infrared Spectrometry, the characteristic peak of aromatic in the OF treatment was observed shiftingfrom 1625 to 1649 cm~(-1), which was close to the characteristic peak of humin, suggesting that the aromaticity of DOM in the OF treatment was higher than the other treatments. The characteristic peaks of C-O at 1260~1000 cm~(-1) belonging to sugar, alcohol, and carboxylic acid were highest in theGM treatment, showing that the green manure could increase rich oxygen radicals. The highest characteristic peaks of N-H at 3559, 3419 and 1456 cm~(-1) were observed in the CF treatment, indicating that the chemical fertilizer could increase amine substances. The contents of C, O and N in the OF, GM,CF treatments were also increased respectively according to the elemental analysis.
中文关键词	长期不同施肥 ; 可溶性有机质 ; 紫外-可见光谱 ; 红外光谱 ; 元素分析
英文关键词	Long-term different fertilization Dissolved organic matter Ultraviolet-visible spectrum Infrared spectroscopy Element analysis
语种	中文
国家	中国
收录类别	CSCD
WOS类目	CHEMISTRY ANALYTICAL
WOS研究方向	Chemistry
CSCD记录号	CSCD:5615294
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234439
作者单位	1.中国农业科学院农业资源与农业区划研究所, 农业部植物营养与肥料重点实验室, 北京 100081, 中国; 2.甘肃省农业科学院土壤肥料与节水农业研究所, 兰州, 甘肃 730073, 中国; 3.Faculty of Agriculture, Kagoshima University, Kagoshima 890-0065, Japan
推荐引用方式 GB/T 7714	常单娜,曹卫东,包兴国,等. 西北灌漠土长期不同施肥改变土壤可溶性有机质的化学及光谱学特性[J],2016,36(1):220-225.
APA	常单娜.,曹卫东.,包兴国.,白金顺.,张久东.,...&志水胜好.(2016).西北灌漠土长期不同施肥改变土壤可溶性有机质的化学及光谱学特性.光谱学与光谱分析,36(1),220-225.
MLA	常单娜,et al."西北灌漠土长期不同施肥改变土壤可溶性有机质的化学及光谱学特性".光谱学与光谱分析 36.1(2016):220-225.