|本期目录/Table of Contents|

[1]孙菁菁,朱米家,张弛,等.施氮量对麦田土壤微生物热代谢活性的影响[J].江苏农业科学,2015,43(06):324-326.
 Sun Jingjing,et al.Effect of nitrogen application rate on thermal metabolic activity of soil microorganism in wheat field[J].Jiangsu Agricultural Sciences,2015,43(06):324-326.
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施氮量对麦田土壤微生物热代谢活性的影响(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第43卷
期数:
2015年06期
页码:
324-326
栏目:
资源与环境
出版日期:
2015-06-25

文章信息/Info

Title:
Effect of nitrogen application rate on thermal metabolic activity of soil microorganism in wheat field
作者:
孙菁菁 朱米家 张弛 姚俊
北京科技大学土木与环境工程学院,北京100083
Author(s):
Sun Jingjinget al
关键词:
微生物活性微量热施氮量土壤相关性
Keywords:
-
分类号:
S154.3
DOI:
-
文献标志码:
A
摘要:
为了评价氮肥对土壤生态环境的效应,通过大田试验,应用微量热技术研究了麦田土壤不同土层中微生物热代谢活性的变化以及在不同施氮量处理下微生物活性分布的情况。结果表明,随着土层的加深,功率时间曲线由陡变缓;同时施肥也改变了微生物的活性,长期不施肥处理与施肥处理的0~30 cm土层的微生物活性差异不大,但随着土层的加深不施肥处理微生物活性急剧下降; 而施氮180 kg/hm2处理下0~30 cm土层与30~60 cm土层的微生物活性相近,施氮300 kg/hm2处理下30~60 cm土层和60~90 cm土层的微生物活性相差不大。相关性分析显示,施氮量与微生物生长速率k呈显著负相关。可见,不同土层有着不同的微生物活性,不同施氮处理改变了微生物的垂直分布情况。
Abstract:
-

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2015-01-19
基金项目:国家自然科学基金 (编号:40925010)。
作者简介:孙菁菁(1986—),女,河北保定人,博士研究生,主要从事土壤微生物方面的研究。E-mail:ligong11@126.com。
更新日期/Last Update: 2015-06-25