干旱区生态环境知识资源中心(Arid): CH4 fluxes and diffusion within soil profiles subjected to different fertilizer regimes on China's Loess Plateau

Arid

DOI	10.1016/j.agee.2019.106679
	CH4 fluxes and diffusion within soil profiles subjected to different fertilizer regimes on China's Loess Plateau
	Nan, Weige 1; Li, Shiqing 2; Dong, Zhibao1 ; Yao, Pengwei 3
通讯作者	Dong, Zhibao
来源期刊	AGRICULTURE ECOSYSTEMS & ENVIRONMENT
ISSN	0167-8809
EISSN	1873-2305
出版年	2020
卷号	287
英文摘要	To better understand the effects of fertilizer on soil methane (CH4) diffusion and consumption in semi-arid region, we investigated the subsurface CH4 concentrations at seven depths in the mineral soil and analysed the CH4 fluxes between soil horizons at the Changwu Agro-Ecological Station on China's Loess Plateau. The results showed that dryland soil was a weak net CH4 sink. The CH4 concentration and diffusion decreased with increasing depth to a depth of 50 cm, and then remained low from 50 to 100 cm. Much of the soil CH4 diffusion and transformation occurred in the top 20 cm, but maximum CH4 production occurred at a depth of 7 cm, and maximum CH4 consumption occurred at a depth of 15 cm. Soil moisture could significantly inhibit gas diffusion and accelerate the biochemical transformation of CH4. In high-yield production system, the application of nitrogen fertilizer promoted CH4 diffusion, especially in the surface soil, but did not affect the transformation of CH4; thus, organic matter promoted CH4 diffusion and stimulated CH4 transformation, especially for CH4 consumption at a depth of 15 cm. Overall, the integrated application of manure and nitrogen fertilizer can not only have optimum yield, but also successfully play a very low risk of CH4 emission.
英文关键词	CH4 diffusion Transformation Consumption Fertilizer
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000500216600004
WOS关键词	GREENHOUSE-GAS FLUXES ; NITROUS-OXIDE FLUXES ; LAND-USE CHANGE ; METHANE UPTAKE ; CARBON-DIOXIDE ; CROPPING SYSTEMS ; OXIDATION ; N2O ; EMISSIONS ; FOREST
WOS类目	Agriculture, Multidisciplinary ; Ecology ; Environmental Sciences
WOS研究方向	Agriculture ; Environmental Sciences & Ecology
EI主题词	2020-01-01
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/312313
作者单位	1.Shaanxi Normal Univ, Sch Geog & Tourism, Xian 710119, Shaanxi, Peoples R China; 2.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China; 3.Henan Agr Univ, Coll Tobacco Sci, Zhengzhou 450002, Henan, Peoples R China
推荐引用方式 GB/T 7714	Nan, Weige,Li, Shiqing,Dong, Zhibao,et al. CH4 fluxes and diffusion within soil profiles subjected to different fertilizer regimes on China's Loess Plateau[J]. 西北农林科技大学,2020,287.
APA	Nan, Weige,Li, Shiqing,Dong, Zhibao,&Yao, Pengwei.(2020).CH4 fluxes and diffusion within soil profiles subjected to different fertilizer regimes on China's Loess Plateau.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,287.
MLA	Nan, Weige,et al."CH4 fluxes and diffusion within soil profiles subjected to different fertilizer regimes on China's Loess Plateau".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 287(2020).