Comparison of Soil Respiration Rate between Row and Inter-row of Maize (Zea mays) Field in the Horqin Sandy Land

doi:10.7522/j.issn.1000-694X.2013.00328

JOURNAL OF DESERT RESEARCH

2014, Vol. 34

Issue (2): 378-384 DOI: 10.7522/j.issn.1000-694X.2013.00328

Comparison of Soil Respiration Rate between Row and Inter-row of Maize (Zea mays) Field in the Horqin Sandy Land

Zhang Fengxia¹, Han Juanjuan², Chen Yinping¹, Li Yuqiang², Lian Jie², Yue Xiangfei², Wang Xinyuan²

1. School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China;
2. Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China

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Abstract Using an infrared gas analysis method (IRGA) CO₂ analyzer (Li-6400,USA), the present study explored the differences of soil respiration rate between row and inter-rows and the characteristics of the autotrophic and heterotrophic respiration at maize (Zea mays ) fields of Horqin Sandy Land, and then estimated the carbon balance of ecosystem. Results showed that: (1) There was significant difference of soil respiration rate between row and inter-rows (p<0.001), and there was a linear relationship between them (p<0.05); Approximately 98.4% (R²=0.984) variations in soil respiration of inter-rows could be explained by that of row. (2) The Q₁₀ values for R_S, R_H, and R_A were 4.35, 3.10 and 2.08, respectively. (3) There was a significant difference between R_S and R_H, but there was no significant difference between R_A and R_S as well as R_A and R_H. The proportion of R_A to total soil CO₂ emission ranged from 28.1% to 71.1% during the growing season, and the average proportion of R_H and R_A to R_S were 44.4% and 55.6%, respectively. (4) Maize field of Horqin Sandy Land was a carbon sink in the growth period, which could sequester carbon up to 659.1 gC·m^-2.

Key words: rows inter-row autotrophic respiration heterotrophic respiration Q₁₀ biomass carbon balance

Received: 03 August 2013 Published: 20 March 2014

ZTFLH:

S154.1

Corresponding Authors: 李玉强（Email：liyq@lzb.ac.cn） E-mail: liyq@lzb.ac.cn



	Articles by authors
	Zhang Fengxia
	Han Juanjuan
	Chen Yinping
	Li Yuqiang
	Lian Jie
	Yue Xiangfei
	Wang Xinyuan

Cite this article:

Zhang Fengxia, Han Juanjuan, Chen Yinping, Li Yuqiang, Lian Jie, Yue Xiangfei, Wang Xinyuan. Comparison of Soil Respiration Rate between Row and Inter-row of Maize (Zea mays) Field in the Horqin Sandy Land. JOURNAL OF DESERT RESEARCH, 2014, 34(2): 378-384.

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http://www.desert.ac.cn/EN/10.7522/j.issn.1000-694X.2013.00328 OR http://www.desert.ac.cn/EN/Y2014/V34/I2/378

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