|本期目录/Table of Contents|

[1]张成芳,李德生,魏佳宇,等.3种城郊防护林土壤呼吸与温湿度的关系[J].江苏农业科学,2020,48(05):243-249.
 Zhang Chengfang,et al.Relationship between soil respiration and temperature and humidity in three suburban shelterbelts[J].Jiangsu Agricultural Sciences,2020,48(05):243-249.
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3种城郊防护林土壤呼吸与温湿度的关系(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第48卷
期数:
2020年第05期
页码:
243-249
栏目:
资源与环境
出版日期:
2020-04-02

文章信息/Info

Title:
Relationship between soil respiration and temperature and humidity in three suburban shelterbelts
作者:
张成芳 李德生 魏佳宇 赵亮玉
天津理工大学环境科学与安全工程学院,天津 300384
Author(s):
Zhang Chengfanget al
关键词:
城郊防护林土壤呼吸速率土壤温度土壤湿度相关性
Keywords:
-
分类号:
S181
DOI:
-
文献标志码:
A
摘要:
以天津市3种代表性的城郊防护林(杨树、火炬树、刺槐)为研究对象,利用便携式土壤碳通量全自动分析仪ACE进行定期观测,研究结果表明:(1)在2018年4—10月生长季3种城郊防护林土壤呼吸速率的日变化表现为单峰曲线,最大值出现在10:00—15:00,最小值出现在20:00—5:00。(2)土壤呼吸速率的季节变化为明显的单峰曲线,杨树土壤呼吸速率在7月达到峰值,为3.80 μmol/(m2·s);而火炬树和刺槐土壤呼吸速率在8月达到峰值,分别为3.84、4.75 μmol/(m2·s);杨树、火炬树和刺槐的土壤呼吸速率平均值分别为2.01、2.25、2.62 μmol/(m2·s),差异达显著水平(P<0.05)。(3)土壤呼吸速率与土壤温度之间具有显著的二次函数关系(P<0.05),拟合度为78.8%~84.7%;与土壤湿度之间呈显著或极显著线性正相关,拟合度为66.8%~90.2%。(4)对土壤呼吸速率和10 cm深度的土壤温度(T10)及5 cm深度的土壤湿度(M5)之间进行多元线性拟合,相关系数为0.826~0.950,说明多元线性模型能够很好地解释土壤温度和湿度对土壤呼吸的协同作用,表明土壤温度和湿度是3种城郊防护林土壤呼吸速率的主要影响因子。
Abstract:
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参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2019-02-22
基金项目:国家自然科学基金(编号:41303057);天津市应用基础与前沿技术研究计划项目(编号:14JCYBJC2300);天津市大学生创新创业训练计划项目(编号:201710060049)。
作者简介:张成芳(1995─),女,山东青岛人,硕士研究生,主要从事环境与城市生态研究。E-mail:15222713218@163.com。
通信作者:李德生,博士,教授,主要从事城市环境与城市生态教学及科研工作。E-mail:deshli@tjut.edu.cn。
更新日期/Last Update: 2020-03-05