华北农学报 ›› 2022, Vol. 37 ›› Issue (3): 168-174. doi: 10.7668/hbnxb.20192856

所属专题: 土壤肥料

• 资源环境·植物保护 • 上一篇    下一篇

长期不同施肥模式对中低产黄泥田土壤团聚体组成及碳组分的影响

陈超1, 宓文海1,2, , 居静1, 吴良欢2, 赵海涛1,   

  1. 1.扬州大学 环境科学与工程学院,江苏 扬州 225009
    2.浙江大学 教育部环境修复与生态健康重点实验室,浙江 杭州 310058
  • 收稿日期:2022-03-02 出版日期:2022-06-30
  • 通讯作者: 宓文海, 赵海涛
  • 作者简介:

    陈 超(1998-),男,江苏宿迁人,在读硕士,主要从事耕地质量提升研究。

  • 基金资助:
    国家自然科学基金项目(32102489)

Effect of Long-term Different Fertilization Pattern on Soil Aggregate Composition and Organic Carbon Fractions in Yellow Clayey Paddy Soil

CHEN Chao1, MI Wenhai1,2, , JU Jing1, WU Lianghuan2, ZHAO Haitao1,   

  1. 1. College of Environmental Science and Engineering,Yangzhou University,Yangzhou 225009,China
    2. Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health, Zhejiang University,Hangzhou 310058,China
  • Received:2022-03-02 Published:2022-06-30
  • Contact: MI Wenhai, ZHAO Haitao

摘要:

为研究长期不同施肥方式对黄泥田土壤团聚体组成、总有机碳及其组分的影响,进而明确黄泥田土壤肥力提升的最佳施肥方式,以金衢盆地黄泥田长期定位施肥试验为基础,设置无肥、单施化肥、化肥配施牛粪和化肥配施秸秆4个处理。结果表明,化肥与牛粪配施处理>0.250 mm团聚体百分含量最高,在0~15 cm和15~30 cm较不施肥对照分别提高了7.1,11.0百分点;而化肥配施秸秆与单施化肥处理之间在水稳性团聚体组成上没有显著差异。此外,化肥与牛粪配施处理较单施化肥处理显著提高了表层土壤总有机碳、颗粒态有机碳含量,增幅分别为18.7%,98.7%。表层土壤中POC/SOC由大到小为:化肥配施牛粪>化肥配施秸秆>单施化肥≈无肥。与单施化肥处理相比,化肥配施牛粪或秸秆处理提高了1 030 cm-1相对吸收峰强度,说明有机无机配施处理下土壤碳以多糖类相对含量更高。综合考虑,化肥配施牛粪在改善土壤结构和提升土壤碳库方面效果最佳。

关键词: 碳库管理, 红外光谱, 颗粒态有机碳, 矿物结合态有机碳, 秸秆

Abstract:

In order to study the effects of different fertilization pattern on the soil aggregates composition,the contents of total organic carbon and its components,and to clarify the optimal fertilization pattern for improving soil fertility in yellow clayey paddy soil.Based on the long-term fertilization experiment in Jinqu Basin,four treatments were conducted,including no fertilizer,chemical fertilizer alone,chemical fertilizer combined with cattle manure and chemical fertilizer combined with straw.The results showed that chemical fertilizers plus cattle manure resulted in the highest percentage of >0.250 mm aggregate,increased by 7.1,11.0 percentage point compared to the chemical fertilizers alone in 0-15 cm and 15-30 cm,respectively.By contrast,there were no significant differences in the composition of aggregate between chemical fertilizers plus straw and chemical fertilizers alone.On the other hand,chemical fertilizers plus cattle manure showed significantly higher in soil total organic carbon content,particulate organic carbon content in the surface soil,increased by 18.7%,98.7%,respectively.The order of POC/SOC value in the surface soil was as follows:chemical fertilizer plus cattle manure > chemical fertilizer plus rice straw> chemical fertilizers alone ≈ no fertilizer.Compared with the single application of chemical fertilizers,the combined application of chemical fertilizers and cattle manure or straw increased the relative absorption peak intensity of 1 030 cm-1,indicating that the relative content of polysaccharides was higher under the combined application of organic and inorganic fertilizers treatments.Overall,the combined application of chemical fertilizers and cattle manure was the best practice for improving soil structure and soil carbon pool.

Key words: Carbon pool management, Fourier transform infrared, Particulate organic carbon, Mineral organic carbon, Straw

引用本文

陈超, 宓文海, 居静, 吴良欢, 赵海涛. 长期不同施肥模式对中低产黄泥田土壤团聚体组成及碳组分的影响[J]. 华北农学报, 2022, 37(3): 168-174. doi: 10.7668/hbnxb.20192856.

CHEN Chao, MI Wenhai, JU Jing, WU Lianghuan, ZHAO Haitao. Effect of Long-term Different Fertilization Pattern on Soil Aggregate Composition and Organic Carbon Fractions in Yellow Clayey Paddy Soil[J]. Acta Agriculturae Boreali-Sinica, 2022, 37(3): 168-174. doi: 10.7668/hbnxb.20192856.

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