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生物炭添加对干旱胁迫下福建柏幼苗生理特性与土壤酶活性的影响

刘世祥 蔡星 吴文秀 刘晓颖 荣俊冬 郑郁善 陈礼光

刘世祥,蔡星,吴文秀,等. 生物炭添加对干旱胁迫下福建柏幼苗生理特性与土壤酶活性的影响 [J]. 福建农业学报,2024,39(7):794−800 doi: 10.19303/j.issn.1008-0384.2024.07.006
引用本文: 刘世祥,蔡星,吴文秀,等. 生物炭添加对干旱胁迫下福建柏幼苗生理特性与土壤酶活性的影响 [J]. 福建农业学报,2024,39(7):794−800 doi: 10.19303/j.issn.1008-0384.2024.07.006
LIU S X, CAI X, WU W X, et al. Effects of Biochar Addition on Physiology of Fokienia hodginsii Seedlings under Drought and Enzyme Activities in Soil [J]. Fujian Journal of Agricultural Sciences,2024,39(7):794−800 doi: 10.19303/j.issn.1008-0384.2024.07.006
Citation: LIU S X, CAI X, WU W X, et al. Effects of Biochar Addition on Physiology of Fokienia hodginsii Seedlings under Drought and Enzyme Activities in Soil [J]. Fujian Journal of Agricultural Sciences,2024,39(7):794−800 doi: 10.19303/j.issn.1008-0384.2024.07.006

生物炭添加对干旱胁迫下福建柏幼苗生理特性与土壤酶活性的影响

doi: 10.19303/j.issn.1008-0384.2024.07.006
基金项目: 福建省林业种苗科技攻关七期项目 (LZKG-202207);福建农林大学科技创新专项基金(KFB23057)
详细信息
    作者简介:

    刘世祥(1998 —),男,硕士研究生,主要从事森林培育技术相关研究,E-mail:lsx1872022@163.com

    通讯作者:

    陈礼光(1974 —),男,博士,副教授,主要从事森林培育技术相关研究,E-mail:fjclg@qq.com

  • 中图分类号: S791.43; Q945.78

Effects of Biochar Addition on Physiology of Fokienia hodginsii Seedlings under Drought and Enzyme Activities in Soil

More Information
    Author Bio:

    LIU S X

  • 摘要:   目的  探究干旱胁迫下外源增施生物炭对福建柏苗木生理特性与土壤酶活性的影响。  方法  以一年生福建柏幼苗为试材,在土壤中分别添加20、50、80 g·kg−1的玉米秸秆生物炭(T1、T2、T3),以不含生物炭处理为对照(CK),分析不同添加量生物炭对干旱胁迫下福建柏幼苗生长、渗透调节物质的积累及土壤酶活性的影响。  结果  (1)生物炭的施加显著提升了福建柏的生长及生物量积累(P<0.05),50 g·kg−1(T2)处理对福建柏株高、地径及单株生物量的积累促进效果最佳。(2)随着胁迫时间的增加,各组间的可溶性糖、可溶性蛋白、脯氨酸含量总体呈现先升后降的变化趋势,且各组间差异显著。可溶性糖、脯氨酸含量在胁迫42 d时达到最大值;可溶性蛋白含量在胁迫56 d 时达到最大值。总体表现为:T2>T1>T3>CK,且以T2处理效果最佳。T2处理的可溶性糖、可溶性蛋白、脯氨酸含量与同期的CK相比增加了50.7%、127%、54.4%。(3)生物炭的施加显著提升了干旱胁迫下的土壤酶活性(P<0.05),在胁迫70 d时各组脲酶活性达到最大值;过氧化氢酶、硝酸还原酶、蔗糖酶活性在胁迫42 d时达到最大值;蔗糖酶在胁迫56 d时达到最大值。各组间差异总体表现为T2>T1>T3>CK,且以T2处理最佳。  结论  干旱胁迫下施用50 g·kg−1生物炭量的试验处理最有利于福建柏苗木生长、抗逆生理及土壤酶活性的提高,生物炭施用量过高时会对其产生抑制作用。
  • 图  1  生物炭添加对干旱胁迫下福建柏幼苗叶片渗透调节物质含量的影响

    不同小写字母表示不同处理间存在显著性差异(P< 0.05)。

    Figure  1.  Effects of biochar addition on osmoregulatory substances in leaves of F. hodginsii seedlings under drought stress

    Data with different lowercase letters indicate significant differences(P<0.05).

    图  2  生物炭添加对干旱胁迫下土壤酶活性的影响

    Figure  2.  Effect of biochar addition on soil enzyme activity under drought stress

    图  3  干旱胁迫下福建柏幼苗各指标与土壤酶活性的冗余分析

    S-UE:脲酶,S-SC:蔗糖酶,CAT:过氧化氢酶,DHA:脱氢酶,NR:硝酸还原酶,SS:可溶性糖,Pro:脯氨酸,SP:可溶性蛋白,H:株高,D:地径,TB:生物量。

    Figure  3.  Redundancy analysis on physiochemical indicators of F. hodginsii seedlings and soil enzyme activity under drought stress

    S-UE: urease; S-SC: sucrase; CAT: catalase: DHA: dehydrogenase; NR: nitrate reductase; SS: soluble sugar; Pro: proline; SP: soluble protein; H: plant height; D: diameter; TB: biomass.

    表  1  生物炭添加对干旱胁迫下福建柏幼苗生长及生物量积累的影响

    Table  1.   Effects of biochar addition on growth and biomass accumulation of F. hodginsii seedlings

    处理
    Treatment
    株高
    Plant height/cm
    地径
    Ground diameter/mm
    根生物量
    Root biomass/g
    茎生物量
    Stem biomass/g
    叶生物量
    Leaf biomass/g
    单株生物量
    Biomass per plant/g
    CK 20.81±1.90c 2.43±0.46c 1.66±0.20 d 2.26±0.14c 1.31±0.13b 5.23±0.26c
    T1 26.90±3.20a 3.08±0.61ab 2.41±0.12b 2.55±0.12b 1.54±0.15a 6.53±0.28a
    T2 27.10±1.50a 3.15±0.68a 2.52±0.18a 2.64±0.15a 1.60±0.12a 6.76±0.31a
    T3 23.10±1.80b 2.81±0.43b 1.71±0.16c 2.43±0.11b 1.34±0.12b 5.47±0.24b
    不同小写字母表示不同处理间存在显著性差异(P< 0.05)。
    Data with different lowercase letters indicate significant differences at P<0.05.
    下载: 导出CSV
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  • 收稿日期:  2024-04-24
  • 修回日期:  2024-06-03
  • 网络出版日期:  2024-08-15
  • 刊出日期:  2024-07-28

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