干旱区生态环境知识资源中心(Arid): Effects of Supplementary Irrigation on Soil Respiration of Millet Farmland in a Semi-Arid Region in China

Arid

DOI	10.3390/atmos13101584
	Effects of Supplementary Irrigation on Soil Respiration of Millet Farmland in a Semi-Arid Region in China
	Gao, Xiaoli; Zhao, Nan; Lu, Yuhui; Han, Xuan; Yang, Zhiping
通讯作者	Gao, XL
来源期刊	ATMOSPHERE
EISSN	2073-4433
出版年	2022
卷号	13 期号:10
英文摘要	Carbon dioxide (CO2) is recognized as key part of evaluating the soil environment, and the soil respiration rate is an effective indicator of CO2 emission. To explore the influence and coupling mechanism of irrigation on the soil respiration of millet farmland in the Northern Shanxi Province in China, conventional rainfed (CK) and supplementary irrigation (W1) at the late jointing stage were conducted. The soil respiration rate and carbon emission flux in millet farmland under different treatments were observed. The relationship between soil respiration rate and soil physical-chemical properties and the crop growth index was further analyzed. The result showed that the soil respiration rate and carbon emission flux of W1 were higher than those of CK treatment. The comparison of the linear regression correlation between soil respiration rate and soil physical-chemical properties revealed that the major regulating factors of the soil respiration rate were soil moisture (<10.6%) followed by soil pH, soil moisture (>10.6%), soil temperature, and finally soil organic matter content. There are uncertainties regarding the soil moisture content variation range in soil respiration. Moreover, supplementary irrigation promoted the growth indexes, yield, and irrigation water use efficiency in millet farmland. Further research with less irrigation treatment is necessary for exploring an optimization model of water use efficiency and low carbon dioxide emissions in millet fields, which would be helpful to realize agricultural water utilization and a carbon peak in the sense of farmland.
英文关键词	carbon emission soil physical-chemical properties growth index irrigation rainfed
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000872505100001
WOS关键词	CO2 EFFLUX ; NITROGEN ADDITION ; ROOT RESPIRATION ; CARBON-DIOXIDE ; ELEVATED CO2 ; WATER ; EMISSIONS ; MANAGEMENT ; FERTILIZER ; GRASSLAND
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/391927
推荐引用方式 GB/T 7714	Gao, Xiaoli,Zhao, Nan,Lu, Yuhui,et al. Effects of Supplementary Irrigation on Soil Respiration of Millet Farmland in a Semi-Arid Region in China[J],2022,13(10).
APA	Gao, Xiaoli,Zhao, Nan,Lu, Yuhui,Han, Xuan,&Yang, Zhiping.(2022).Effects of Supplementary Irrigation on Soil Respiration of Millet Farmland in a Semi-Arid Region in China.ATMOSPHERE,13(10).
MLA	Gao, Xiaoli,et al."Effects of Supplementary Irrigation on Soil Respiration of Millet Farmland in a Semi-Arid Region in China".ATMOSPHERE 13.10(2022).