|本期目录/Table of Contents|

[1]贾国梅,岳云飞,王世彤,等.茶树根际土壤微生物碳氮磷及其生态化学计量[J].江苏农业科学,2018,46(20):125-128.
 Jia Guomei,et al.Soil microbial biomass carbon,nitrogen and phosphorus in rhizosphere soil of tea trees and its ecological stoichiometry[J].Jiangsu Agricultural Sciences,2018,46(20):125-128.
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第46卷
期数:
2018年第20期
页码:
125-128
栏目:
园艺与林学
出版日期:
2018-10-20

文章信息/Info

Title:
Soil microbial biomass carbon,nitrogen and phosphorus in rhizosphere soil of tea trees and its ecological stoichiometry
作者:
贾国梅12 岳云飞1 王世彤1 LIU Xiao3 向瀚宇1 瞿红云1
1.三峡大学生物与制药学院,湖北宜昌 443002; 2.湖北三峡地区生态保护与治理国际联合研究中心,湖北宜昌 443002;
3.Pall Corporation,NY,USA 11050
Author(s):
Jia Guomeiet al
关键词:
土壤碳氮磷微生物碳氮磷生态化学计量茶树根际
Keywords:
-
分类号:
S154.1;S571.106
DOI:
-
文献标志码:
A
摘要:
土壤微生物生物量碳氮磷(分别简称MBC、MBN、MBP)生态化学计量特征是评价陆地生态系统营养限制的一个有用的工具。以湖北省宜昌市五峰县海拔800 m处不同年龄(3年、8年、40年)茶树的根际土壤作为研究对象,分析茶树根际土壤微生物量碳氮磷含量及它们的生态化学计量特征的变化。结果表明,根际土壤碳氮磷含量随着茶树林龄的延长而提高,但是在8年后逐渐趋于稳定。根际土壤微生物生物量碳氮磷含量都随着年限的延长升高,8年达到最大值,随后趋于稳定。随着茶龄的延长,根际土壤碳氮磷计量比、MBC/MBN和MBC/MBP都无显著性的变化,而MBN/MBP是40年的显著大于其他2个样地,这说明茶树根际土壤碳氮磷生态化学计量特征、MBC/MBN 和 MBC/MBP 都具有内稳态特征,但是MBN/MBP比值却是茶树生长后期(40年)显著大于前期(8年及以前)。这意味着根际土壤MBN/MBP可作为茶树根际微生态系统限制性营养的指标,茶树根际土壤有效磷在茶树生长后期(40年)可能成为限制性元素。
Abstract:
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参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2017-05-19
基金项目:国家自然科学基金(编号:51541903);三峡大学茶叶研究中心开放基金(编号:2015CY3)。
通信作者:贾国梅(1965—),女,甘肃永登人,博士,教授,研究方向为土壤微生物生态学。E-mail:jjjgm@126.com。
更新日期/Last Update: 2018-10-20