干旱区生态环境知识资源中心(Arid): Effects of Biochar Application on Soil Hydrothermal Environment, Carbon Emissions, and Crop Yield in Wheat Fields under Ridge-Furrow Rainwater Harvesting Planting Mode

Arid

DOI	10.3390/agriculture12101704
	Effects of Biochar Application on Soil Hydrothermal Environment, Carbon Emissions, and Crop Yield in Wheat Fields under Ridge-Furrow Rainwater Harvesting Planting Mode
	Ma, Xiangcheng; Lv, Mengfan; Huang, Fangyuan; Zhang, Peng; Cai, Tie; Jia, Zhikuan
通讯作者	Cai, T ; Jia, ZK
来源期刊	AGRICULTURE-BASEL
EISSN	2077-0472
出版年	2022
卷号	12 期号:10
英文摘要	The ridge-furrow rainwater harvesting (RFRH) planting mode is widely used in arid and semi-arid areas to solve the problems of agricultural water shortage and low productivity. However, the impact of film mulching on the stability of soil carbon pools makes this planting mode vulnerable to the risk of increased soil carbon emissions and carbon pool losses. In order to clarify the relationship between soil carbon emissions and hydrothermal factors, as well as the regulatory effect of biochar application on soil carbon sequestration and reduced emissions under this planting mode, we set up a biochar application experiment. The effects of the biochar application (at 10 Mg ha(-1) biochar and 20 Mg ha(-1) biochar) on the soil water dynamics, soil temperature changes, CO2-C and CH4-C flux dynamics, grain yield, carbon emission efficiency, and the net ecosystem carbon budget in wheat fields under the RFRH planting mode were investigated, with no biochar application as the control. The results showed that applying biochar increased the soil water content, soil average temperature, cumulative CH4-C uptake, wheat grain yield, and carbon emission efficiency by 3.10-12.23%, 0.98-3.53%, 59.27-106.65%, 3.51-16.42%, and 18.52-61.17%, respectively; reduced the cumulative CO2-C emissions by 7.51-31.07%; and increased the net ecosystem carbon budget by 2.91 Mg C ha(-1) to 6.06 Mg C ha(-1). The results obtained by equation fitting showed that in wheat fields under RFRH, the CO2-C emission fluxes had negative and positive exponential relationships with the soil water content and soil temperature, respectively, while the CH4-C uptake fluxes had no significant correlation with the soil water content and had an inverse U-shaped quadratic function relationship with soil temperature. Overall, these results suggest that the application of biochar to wheat fields under RFRH can improve grain yield, farmland carbon emission efficiency, and the net ecosystem carbon budget, and change wheat fields from a carbon source to a carbon sink. These results can provide a theoretical basis and technical support for efficient, green, and sustainable production in farmland in arid and semi-arid areas.
英文关键词	CO2 and CH4 equation fitting net ecosystem carbon budget soil temperature soil water content
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:000872053600001
WOS关键词	GREENHOUSE-GAS EMISSIONS ; WATER-USE EFFICIENCY ; PLASTIC FILM ; ORGANIC-CARBON ; CLIMATE-CHANGE ; LOESS PLATEAU ; NITROUS-OXIDE ; WINTER-WHEAT ; MAIZE FIELDS ; GRAIN-YIELD
WOS类目	Agronomy
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/391706
推荐引用方式 GB/T 7714	Ma, Xiangcheng,Lv, Mengfan,Huang, Fangyuan,et al. Effects of Biochar Application on Soil Hydrothermal Environment, Carbon Emissions, and Crop Yield in Wheat Fields under Ridge-Furrow Rainwater Harvesting Planting Mode[J],2022,12(10).
APA	Ma, Xiangcheng,Lv, Mengfan,Huang, Fangyuan,Zhang, Peng,Cai, Tie,&Jia, Zhikuan.(2022).Effects of Biochar Application on Soil Hydrothermal Environment, Carbon Emissions, and Crop Yield in Wheat Fields under Ridge-Furrow Rainwater Harvesting Planting Mode.AGRICULTURE-BASEL,12(10).
MLA	Ma, Xiangcheng,et al."Effects of Biochar Application on Soil Hydrothermal Environment, Carbon Emissions, and Crop Yield in Wheat Fields under Ridge-Furrow Rainwater Harvesting Planting Mode".AGRICULTURE-BASEL 12.10(2022).