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贵州喀斯特石漠化地区苔藓结皮对土壤酶活性及碳氮磷含量的影响

余春娅 张恒彬 赵鑫 龙明忠 江洪 李晓娜

余春娅, 张恒彬, 赵 鑫, 龙明忠, 江 洪, 李晓娜. 贵州喀斯特石漠化地区苔藓结皮对土壤酶活性及碳氮磷含量的影响[J]. 土壤通报, 2023, 54(5): 1137 − 1147 doi: 10.19336/j.cnki.trtb.2022101602
引用本文: 余春娅, 张恒彬, 赵 鑫, 龙明忠, 江 洪, 李晓娜. 贵州喀斯特石漠化地区苔藓结皮对土壤酶活性及碳氮磷含量的影响[J]. 土壤通报, 2023, 54(5): 1137 − 1147 doi: 10.19336/j.cnki.trtb.2022101602
YU Chun-ya, ZHANG Heng-bin, ZHAO Xin, LONG Ming-zhong, JIANG Hong, LI Xiao-na. Effects of Moss Crusts on Soil Enzyme Activities and Contents of Soil Carbon, Nitrogen and Phosphorus in a Karst Rocky Desertification Area of Guizhou[J]. Chinese Journal of Soil Science, 2023, 54(5): 1137 − 1147 doi: 10.19336/j.cnki.trtb.2022101602
Citation: YU Chun-ya, ZHANG Heng-bin, ZHAO Xin, LONG Ming-zhong, JIANG Hong, LI Xiao-na. Effects of Moss Crusts on Soil Enzyme Activities and Contents of Soil Carbon, Nitrogen and Phosphorus in a Karst Rocky Desertification Area of Guizhou[J]. Chinese Journal of Soil Science, 2023, 54(5): 1137 − 1147 doi: 10.19336/j.cnki.trtb.2022101602

贵州喀斯特石漠化地区苔藓结皮对土壤酶活性及碳氮磷含量的影响

doi: 10.19336/j.cnki.trtb.2022101602
基金项目: 国家自然科学基金项目(31960262、32260313)、贵州民族大学自然科学基金(GZMUZK[2021]YB16)和贵中医博士科研启动项目([2020]44)资助
详细信息
    作者简介:

    余春娅(1996−),女,贵州德江人,硕士研究生,主要从事喀斯特生态建设与区域经济。E-mail: 1023554237@qq.com

    通讯作者:

    E-mail: maidoulxn413@163.com

  • 中图分类号: S153

Effects of Moss Crusts on Soil Enzyme Activities and Contents of Soil Carbon, Nitrogen and Phosphorus in a Karst Rocky Desertification Area of Guizhou

  • 摘要:   目的  探索在喀斯特石漠化退化生态系统下苔藓结皮及覆被土壤的养分的变化特征,以期为喀斯特石漠化生态环境修复提供新的理论参考。  方法  以我国贵州典型喀斯特石漠化生态系统-花江石漠化综合治理示范区的苔藓结皮覆被土壤、移除结皮(一年后)以及裸土为研究对象,采用双因素分析方法探讨不同石漠化(无、轻、中、重度)生境下有无结皮覆被及不同土层深度(结皮层、0 ~ 5 cm、5 ~ 10 cm)对土壤酶活性、土壤碳氮磷含量及计量特征的影响。  结果  ①苔藓结皮层土壤脲酶和β-葡萄糖苷酶活性均随着石漠化的等级的升高而升高,而蔗糖酶和碱性磷酸酶则无显著变化;无石漠化区的土壤有机碳含量和碳/氮、碳/磷、氮/磷比值显著高于轻、中、重度石漠化区。②土壤碳氮磷含量及计量特征、酶活性在结皮层与结皮下土层间存在显著差异,结皮层显著高于结皮下0 ~ 5 cm和5 ~ 10 cm土壤。③与苔藓结皮相比,除脲酶活性外,移除结皮一年后的土壤蔗糖酶、碱性磷酸酶、β-葡萄糖苷酶活性、碳氮磷含量及计量特征均有所减少,而与裸土相比则无明显变化。  结论  苔藓结皮的存在提高了其覆被土壤的酶活性及碳氮磷含量,突出了苔藓结皮在退化喀斯特石漠化生境中生态功能的重要性。
  • 图  1  采样点信息

    Figure  1.  Sampling point information

    图  2  不同等级石漠化苔藓结皮覆被土壤的酶活性

    不同大写字母表示同一石漠化等级在不同土层深度之间差异显著,不同小写字母表示不同石漠化低等级在同一土层深度之间差异显著(P < 0.05)。*表示P < 0.05,**表示P < 0.01,***表示P < 0.001,ns表示无显著差异。下同。

    Figure  2.  Enzyme activities of moss crusts covered soils in areas of different degrees of rocky desertification

    图  3  不同等级石漠化苔藓结皮覆被土壤的碳、氮、磷含量及化学计量特征

    Figure  3.  Carbon, nitrogen and phosphorus contents and stoichiometric characteristics of moss crusts covered soil in areas of different degrees of rocky desertification

    图  4  有无苔藓结皮覆被对各土壤酶活性的影响

    不同小写字母表示相同石漠化等级下不同类型之间差异显著(P < 0.05)。下同。

    Figure  4.  Effects of the presence or not of the cover of moss crusts on soil enzyme activities

    图  5  有无结皮覆被对土壤有机碳、全氮、全磷含量的影响

    Figure  5.  Effects of the presence or not of the cover of moss crusts on contents of soil carbon, nitrogen and phosphorus

    表  1  土壤酶活性与土壤化学性质的相关性

    Table  1.   Correlation between soil enzyme activities and soil chemical properties

    蔗糖酶
    Sucrase
    葡萄糖苷酶
    β-glucosidase
    碱性磷酸酶
    Alkaline
    phosphatase
    脲酶
    Urease
    全氮
    Total
    nitrogen
    全磷
    Total
    phosphorus
    有机碳
    Soil organic
    carbon
    碳/氮
    C/N
    碳/磷
    C/P
    氮/磷
    N/P
    蔗糖酶 1 0.217* 0.145 −0.007 0.481** 0.305** 0.360** 0.029 0.023 0.037
    葡萄糖苷酶 1 0.415** 0.167 0.428** 0.241* 0.495** 0.267** 0.201 0.119
    碱性磷酸酶 1 −0.044 0.263** 0.227* 0.357** 0.233* 0.05 −0.061
    脲酶 1 −0.049 −0.056 −0.084 −0.026 0.03 0.065
    全氮 1 0.360** 0.667** −0.099 0.198 0.360**
    全磷 1 0.172 −0.139 −0.579** −0.686**
    有机碳 1 0.638** 0.648** 0.401**
    碳/氮 1 0.648** 0.184
    碳/磷 1 0.84**
    氮/磷 1
      注:*代表显著相关(P < 0.05); **代表极显著相关(P < 0.01)
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-10-16
  • 录用日期:  2023-02-04
  • 修回日期:  2022-12-21
  • 网络出版日期:  2023-10-21
  • 刊出日期:  2023-10-06

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