干旱区生态环境知识资源中心(Arid): Variation and attribution of energy distribution for salinized sunflower farmland in arid area

Arid

DOI	10.1016/j.agwat.2024.108833
	Variation and attribution of energy distribution for salinized sunflower farmland in arid area
	Wang, Weishu; Rong, Yao; Dai, Xiaoqin; Zhang, Chenglong; Wang, Chaozi; Huo, Zailin
通讯作者	Dai, XQ
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2024
卷号	297
英文摘要	Agricultural water resources consumption and soil salinity interact with the distribution of radiation energy in arid salinized farmland. Understanding the temporal changes in energy distribution is necessary to enhance water resource use efficiency. Based on two years of monitoring the energy fluxes in a salinized sunflower field, it was found that field energy fluxes were dependent on available energy, and the temporal dynamics of energy distribution was strongly influenced by crop growth. As expected, soil moisture and meteorological conditions were the main factors limiting latent heat (LE) fluxes in the relatively dry year, with leaf area index showing a more significant positive correlation with LE under abundant soil moisture. Furthermore, path analysis revealed that soil moisture affected energy distribution at budding and flowering stages through the negative regulation of soil surface heat fluxes and the positive regulation of LE. The accumulation of soil salt decreased LE (with Pearson correlation coefficient of -0.59 and a total effect of -0.55), and positive regulated sensible heat (with Pearson correlation coefficient of 0.27 and a total effect of 0.31). Additionally, approximately 40 % of actual evapotranspiration was contributed by groundwater, potentially influencing energy fluxes. Moreover, a negative correlation was observed between surface albedo and salinity, which might be another pathway influencing energy distribution. Our findings are important to understand energy distribution and water consumption during the crop growth period in salinized field in arid area.
英文关键词	Handling Editor Dr. BE Clothier Latent heat fluxes Soil salinity Structural equation model Sensible heat fluxes Surface albedo
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:001233577700001
WOS关键词	GROUNDWATER EVAPOTRANSPIRATION ; CROP COEFFICIENT ; FOOTPRINT MODEL ; SENSIBLE HEAT ; FLUXES ; WATER ; SOIL ; BALANCE ; FOREST ; TRANSPIRATION
WOS类目	Agronomy ; Water Resources
WOS研究方向	Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/402665
推荐引用方式 GB/T 7714	Wang, Weishu,Rong, Yao,Dai, Xiaoqin,et al. Variation and attribution of energy distribution for salinized sunflower farmland in arid area[J],2024,297.
APA	Wang, Weishu,Rong, Yao,Dai, Xiaoqin,Zhang, Chenglong,Wang, Chaozi,&Huo, Zailin.(2024).Variation and attribution of energy distribution for salinized sunflower farmland in arid area.AGRICULTURAL WATER MANAGEMENT,297.
MLA	Wang, Weishu,et al."Variation and attribution of energy distribution for salinized sunflower farmland in arid area".AGRICULTURAL WATER MANAGEMENT 297(2024).