Please wait a minute...
 首页  期刊介绍 期刊订阅 联系我们 横山亮次奖 百年刊庆
 
最新录用  |  预出版  |  当期目录  |  过刊浏览  |  阅读排行  |  下载排行  |  引用排行  |  横山亮次奖  |  百年刊庆
清华大学学报(自然科学版)  2015, Vol. 55 Issue (1): 33-38    
  本期目录 | 过刊浏览 | 高级检索 |
华北平原典型冬小麦农田土壤呼吸日内变化规律
张权1,杨大文1(),雷慧闽1,薄宏波2,蔡建峰2
2. 位山灌区管理处, 聊城 252000
On the diel characteristics of soil respiration in winter wheat croplands in the North China Plain
Quan ZHANG1,Dawen YANG1(),Huimin LEI1,Hongbo BO2,Jianfeng CAI2
1. State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China
2. Management Office of the Weishan Irrigation District, Liaocheng 252000, China
全文: PDF(1376 KB)   HTML
输出: BibTeX | EndNote (RIS)      
摘要 

为掌握华北平原麦田总土壤呼吸、异养呼吸和自养呼吸的日内变化规律及其控制因素,该文于2011年4月—6月开展了土壤呼吸实验,采用根系排除法,测得总土壤呼吸及其2个分量异养呼吸和自养呼吸。结果表明: 总土壤呼吸和异养呼吸呈现单峰变化规律,峰值出现在午后14:00附近,自养呼吸无明显日内变化特征。自养呼吸对总土壤呼吸的贡献率在日时间尺度上变化较小,但不同生育期的量值有微小差异。相关关系分析结果表明: 异养呼吸与空气温度具有很好相关性,好于与土壤温度的相关性,异养呼吸与空气相对湿度具有较好的负相关性。自养呼吸主要受光合作用速率控制,但在时间上滞后于光合作用速率。因此控制该地区麦田土壤呼吸日内变化的主要因素为空气温度、空气湿度和光合作用速率。

服务
把本文推荐给朋友
加入引用管理器
E-mail Alert
RSS
作者相关文章
关键词 华北平原冬小麦土壤呼吸异养呼吸自养呼吸    
Abstract

Soil respiration in a typical wheat cropland was measured from April to June, 2011 to understand the diel variations of the total soil respiration, heterotrophic respiration, autotrophic respiration, and their corresponding controlling factors in wheat croplands in the North China Plain. The root exclusion method was used to measure total soil respiration, heterotrophic respiration and autotrophic respiration. The results showed that the total soil respiration and the heterotrophic respiration both had single peaks at around 14:00, while the autotrophic respiration did not have apparent diel characteristics. The ratio of autotrophic respiration to the total soil respiration varied little throughout the day but varied some during different growth stages. The heterotrophic respiration was more closely related to the air temperature than to the soil temperature. In addition, the heterotrophic respiration was negatively correlated to the relative humidity. The autotrophic respiration was dependent on the gross primary production with a time lag. In summary, the diel variations of soil respiration in a field were mainly dependent on the air temperature, relative humidity and photosynthesis rate.

Key wordsNorth China Plain    winter wheat    soil respiration    heterotrophic respiration    autotrophic respiration
收稿日期: 2013-01-02      出版日期: 2015-05-15
基金资助:国家杰出青年科学基金资助项目 (51025931);国家自然科学基金资助项目 (50939004)
引用本文:   
张权,杨大文,雷慧闽,薄宏波,蔡建峰. 华北平原典型冬小麦农田土壤呼吸日内变化规律[J]. 清华大学学报(自然科学版), 2015, 55(1): 33-38.
Quan ZHANG,Dawen YANG,Huimin LEI,Hongbo BO,Jianfeng CAI. On the diel characteristics of soil respiration in winter wheat croplands in the North China Plain. Journal of Tsinghua University(Science and Technology), 2015, 55(1): 33-38.
链接本文:  
http://jst.tsinghuajournals.com/CN/  或          http://jst.tsinghuajournals.com/CN/Y2015/V55/I1/33
  实验处理示意图
  6个测量日内总土壤呼吸变化过程
  6个测量日内异养呼吸变化过程
  6个测量日内自养呼吸变化过程
日期 RS RH RA
4月4日 3.23 2.13 1.10
4月9日 4.16 2.59 1.57
5月1日 6.06 3.54 2.52
5月13日 4.44 2.97 1.47
5月23日 4.42 3.13 1.29
6月1日 4.97 3.56 1.41
  土壤呼吸日平均值(μmol·m-2 ·s-1)
  6个测量日内自养呼吸贡献率变化过程
日期 R2
Tair Ts5 Ts10 Ts20
4月4日 0.57 0.10
4月9日 0.95 0.88 0.67 0.22
5月1日 0.83 0.70 0.43
5月13日 0.91 0.76 0.52 0.01
5月23日 0.78 0.50 0.27
6月1日 0.80 0.40 0.19
  van’t Hoff模型拟合确定性系数(R2)
  6个测量日内异养呼吸与空气湿度相关关系
  6个测量日内自养呼吸与GPP相关关系
[1] Buchmann N. Biotic and abiotic factors controlling soil respiration rates in Piceaabies stands[J]. Soil Biology & Biochemistry, 2000, 32(11-12): 1625-1635.
[2] Houghton J T, Ding Y, Griggs D J, et al.Climate Change 2001: The Scientific Basis. Contribution of Working Group I to the Third Scientific Assessment Report of the Intergovernmental Panel on Climate Change [M]. Cambridge, UK: Cambridge University Press, 2001.
[3] Luo Y Q, Zhou X H. Soil Respiration and Environment [M]. Burlington, USA: Academic Press, 2006.
[4] 韩广轩, 周广胜, 许振柱. 中国农田生态系统土壤呼吸作用研究与展望[J]. 植物生态学报, 2008, 32(3): 719-733. HAN Guangxuan, ZHOU Guangsheng, XU Zhenzhu. Research and prospects for soil respiration of farmland and ecosystems in China[J]. Journal of Plant Ecology, 2008, 32(3): 719-733. (in Chinese)
[5] 王小国, 朱波, 王艳强, 等. 不同土地利用方式下土壤呼吸及其温度敏感性[J]. 生态学报, 2007, 27(5): 1960-1968. WANG Xiaoguo, ZHU Bo, WANG Yanqiang, et al.Soil respiration and its sensitivity to temperature under different land use conditions[J]. Acta Ecologica Sinica, 2007, 27(5): 1960-1968. (in Chinese)
[6] Han G, Zhou G, Xu Z, et al.Soil temperature and biotic factors drive the seasonal variation of soil respiration in a maize (Zea mays L.) agricultural ecosystem[J]. Plant and Soil, 2007, 291(1-2): 15-26.
[7] 陈述悦, 李俊, 陆佩玲, 等. 华北平原麦田土壤呼吸特征[J]. 应用生态学报, 2004, 15(9): 1552-1560. CHEN Shuyue, LI Jun, LU Peiling, et al.Soil respiration characteristics in winter wheat field in North China Plain[J]. Chinese Journal of Applied Ecology, 2004, 15(9): 1552-1560. (in Chinese)
[8] ZHANG Quan, LEI Huimin, YANG Dawen. Seasonal variations in soil respiration, heterotrophic respiration and autotrophic respiration of a wheat and maize rotation cropland in the North China Plain[J]. Agricultural and Forest Meteorology, 2013, 180: 34-43.
[9] 雷慧闽, 杨大文, 沈彦俊, 等.黄河灌区水热通量的观测与分析[J]. 清华大学学报: 自然科学版, 2007, 47(06): 801-804. LEI Huimin, YANG Dawen, SHEN Yanjun, et al.Energy and water fluxes in the Yellow River irrigation region[J].Journal of Tsinghua University: Science and Technology, 2007, 47(06): 801-804. (in Chinese)
[10] Hanson P J, Edwards N T, Garten C T, et al.Separating root and soil microbial contributions to soil respiration: A review of methods and observations[J]. Biogeochemistry, 2000, 48(1): 115-146.
[11] LEI Huimin, YANG Dawen. Seasonal and interannual variations in carbon dioxide exchange over a cropland in the North China Plain[J]. Global Change Biology, 2011, 16(11): 2944-2957.
[12] Lloyd J, Taylor J A. On the temperature-dependence of soil respiration[J]. Functional Ecology, 1994, 8(3): 315-323.
[13] Liu Y, Li S Q, Yang S J, et al.Diurnal and seasonal soil CO2 flux patterns in spring maize fields on the Loess Plateau, China[J]. Acta Agriculturae Scandinavica, Section B-Soil and Plant Science, 2010, 60(3): 245-255.
[14] Ekblad A, Högberg P. Natural abundance of 13C in CO2 respired from forest soils reveals speed of link between tree photosynthesis and root respiration[J]. Oecologia, 2001, 127(3): 305-308.
[15] Tang J W, Baldocchi D D, Xu L. Tree photosynthesis modulates soil respiration on a diurnal time scale[J]. Global Change Biology, 2005, 11(8): 1298-1304.
[16] Kuzyakov Y, Gavrichkova O. Review: Time lag between photosynthesis and carbon dioxide efflux from soil: A review of mechanisms and controls[J]. Global Change Biology, 2010, 16(12): 3386-3406.
[1] 杨汉波, 吕华芳, 胡庆芳, 雷慧闽, 杨大文. 华北平原的大气逆辐射参数化方法比较[J]. 清华大学学报(自然科学版), 2014, 54(5): 590-595.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
版权所有 © 《清华大学学报(自然科学版)》编辑部
本系统由北京玛格泰克科技发展有限公司设计开发 技术支持:support@magtech.com.cn