长期不同施肥对土壤溶解性有机质含量及其结构特征的影响

doi:10.3964/j.issn.1000-0593(2018)07-2250-06

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Abstract National Monitoring Station of Soil Fertility as a research platform was used combined with UV-Visible absorption spectroscopy to explore how the following fertilizer application: (1) CK (non-fertilization); (2)NPK (applied chemical nitrogen, phosphorus and potassium); (3) NPKS (chemical nitrogen, phosphorus and potassium combined with straw); (4) 1.5NPKS (1.5 times of chemical nitrogen, phosphorus and potassium combined with straw); (5) NPKM (chemical nitrogen, phosphorus and potassium combined with manure) to influence the DOM content and structure in 0~20 and 20~40 and 40~60 cm soil layers. The results showed that long term application chemical fertilizers had less effects on soil DOM content, but chemical fertilizers combined with straw and organic manure significantly increased soil DOM content by 39.1 and 12.1 mg·kg^-1 in topsoil. Compared to CK treatment and NPK treatment, chemical fertilizers combined with manure and straw could decrease C/N in 0~20 and 20~40 cm soil layers, and improved the supply of nitrogen in soil, but the DOM and C/N had not significantly difference between different fertilizations in 40~60 cm soil layer. In 0~20 and 20~40 cm soil layers, compared to CK treatment and NPK treatment, the treatments of NPKM，NPKS and 1.5 NPKS increased conjugated structure and humus of soil DOM . In 40~60 cm soil layer, the increased by different fertilizations were not obvious. Chemical fertilizers combined with straw or manure can increase ultraviolet spectrum absorption values of DOM (SUVA₂₅₄ and SUVA₂₆₀ and SUVA₂₈₀) and α (355) in 0~20 cm soil layer, and decrease Ultraviolet spectrum absorption ratios of soil DOM (A₂₅₀/A₃₆₅). It showed that the fragrance, hydrophobicity, molecular weight and CDOM increased. Meanwhile, it was not obvious in 20~40 and 40~60 cm soil layers. A₃₀₀/A₄₀₀ in different soil layers was greater than 3.5, and it showed this soil was rich in Fulvic Acid. Long term chemical fertilizers combined with manure and straw can increase DOM content in 0~20 and 20~40 cm soil layers, decrease C/N, and increase soil fertility. Meanwhile, it also can increase the conjugated structure, humus, fragrance, hydrophobicity and molecular weight of DOM in 0~20 cm soil layer. Long term fertilization has less effects on soil DOM content and structure in 40~60 cm soil layer.

Key words： Long-term fertilization Dissolved organic matter UV-Visible absorption spectroscopy

Received: 2017-02-12 Accepted: 2017-08-26

ZTFLH:

S14

Corresponding Authors: SHI Xiao-jun E-mail: shixj@swu.edu.cn

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http://www.gpxygpfx.com/EN/10.3964/j.issn.1000-0593(2018)07-2250-06 OR http://www.gpxygpfx.com/EN/Y2018/V38/I07/2250

[1] Kalbitz K, Solinger S, Park J H, et al. Soil Science, 2000, 165 (4): 277.
[2] ZHOU Yan-xiang, Lü Mao-kui, XIE Jin-sheng, et al(周艳翔, 吕茂奎, 谢锦升, 等). Journal of Subtropical Resources and Environment(亚热带资源与环境学报), 2013, 8(1): 48.
[3] HAN Cheng-wei, LI Zhong-pei, LIU Li, et al(韩成卫, 李忠佩, 刘丽, 等). Acta Ecologica Sinica(生态学报), 2008, 28(1): 445.
[4] CHEN Xue-shuang, JIANG Tao, LU Song, et al(陈雪霜, 江韬, 卢松, 等). Environmental Science(环境科学), 2016, 37(3): 884.
[5] YAN Jin-long, JIANG Tao, GAO Jie, et al(闫金龙, 江韬, 高洁, 等). Environmental Science(环境科学), 2015, 36(3): 869.
[6] Maya Engel, Benny Chefetz. Water Research, 2016, 106: 146.
[7] GAO Zhong-xia, ZHOU Jian-bin, WANG Xiang, et al(高忠霞, 周建斌, 王祥, 等). Acta Pedologica Sinica(土壤学报), 2010, 47(1): 115.
[8] ZHOU Jiang-min, CHEN Hua-lin, TANG Dong-min, et al(周江敏, 陈华林, 唐东民, 等). Plant Nutrition and Fertilizer Science(植物营养与肥料学报), 2008, 14(4): 678.
[9] Yu G H, Wu M J, Wei G R, et al. Environmental Science and Technology, 2012, 46(11): 6102.
[10] CHANG Dan-na, CAO Wei-dong, BAI Jin-shun, et al(常单娜, 曹卫东, 白金顺, 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2017, 37(1): 221.
[11] Dorado J, Gonzlez-Vila F J, Zancada M C. Journal of Analytical and Applied Pyrolysis, 2003, 28: 89.
[12] Artinger R, Buckau G, Geyer S, et al. Applied Geochemistry, 2000, 15(1): 97.
[13] ZHANG Yun-lin, QIN Bo-qiang(张运林, 秦伯强). Advances in Water Science(水科学进展), 2007, 18(3): 415.
[14] CHEN Wu-rong, LIU Qin, YU Hong-shuang, et al(陈武荣, 刘勤, 禹洪双, 等). Journal of Soil and Water Conservation(水土保持学报), 2010, 24(6): 111.
[15] LI Hui-xin, YUAN Ying-hong, HUANG Qian-ru, et al(李辉信，袁颖红, 黄欠如, 等). Acta Pedologica Sinica(土壤学报), 2008, 45(2): 259.
[16] HAN Cheng-wei, LI Zhong-pei, LIU Li, et al(韩成卫, 李忠佩, 刘丽, 等). Scientia Agricultura Sinica(中国农业科学), 2007, 40(1): 107.
[17] Chantigny M H. Geoderma, 2003, 113: 357.
[18] LI Juan, ZHAO Bing-qiang, LI Xiu-ying, et al(李娟, 赵秉强, 李秀英, 等). Scientia Agricultura Sinica(中国农业科学), 2008, 41(1): 144.
[19] ZHOU Bin, QIAO Mu, WANG Zhou-qiong(周斌, 乔木, 王周琼). Chinese Journal of Eco-Agriculture(中国生态农业学报), 2007, 15(2): 33.
[20] MA Xiao-xia, WANG Lian-lian, LI Qing-hui, et al(马晓霞, 王莲莲, 黎青慧, 等). Acta Ecologica Sinica(生态学报), 2012, 32(17): 5502.
[21] ZHAO Hai-chao, LIU Jing-hui, ZHAO Bao-ping, et al(赵海超, 刘景辉, 赵宝平, 等). Ecology and Environmental Sciences(生态环境学报), 2014, 23(8): 1286.
[22] HE Yu-rong(何毓蓉). Purple Soils in China(中国紫色土). Beijing Science Press(北京: 科学出版社), 2003.
[23] XIONG Ming-biao, TIAN Ying-bing, SONG Guang-yu, et al(熊明彪, 田应兵, 宋光煜, 等). Southwest China Journal of Agricultural Sciences(西南农业学报), 2005, 18(4): 413.