干旱区生态环境知识资源中心(Arid): C3 and C4 Grass Species: Who Can Reduce Soil Nitrous Oxide Emissions in a Continental Arid Region?

Arid

DOI	10.3390/atmos11090958
	C3 and C4 Grass Species: Who Can Reduce Soil Nitrous Oxide Emissions in a Continental Arid Region?
	Ning, Jiao; He, Xiong Z.; Hou, Fujiang
通讯作者	Hou, FJ
来源期刊	ATMOSPHERE
EISSN	2073-4433
出版年	2020
卷号	11 期号:9
英文摘要	In order to relieve grazing pressure, drought-tolerant grass species are widely cultivated in arid regions. However, soil N emission is largely neglected while pursuing forage yield. We carried out a randomized block study to investigate whether and how the C3 and C4 grass species differ in soil N emission in a typical salinized field with temperate continental arid climate in the northwest inland regions, China. We quantified soil N2O flux from two C3 (barley and rye) and two C4 grass species [corngrass and sorghum hybrid sudangrass (SHS)] in fields during the growing season (from May to September) by using the static box method, and then determined the relationships between soil N2O fluxes and forage yield and soil properties. Results show that soil available nitrogen, soil temperature, pH, soil organic carbon, and total nitrogen were correlated, but soil water was anti-correlated with soil N2O fluxes. In addition, N2O flux increased significantly faster with soil temperature in C4 than in C3 grass fields. Although the lower total N2O emission fluxes were detected for C3 species, the lower yield-scaled N2O was detected for C4 species. Our study provided insights into the determination of grass species and the understanding of mechanisms regulating N2O fluxes in C3 and C4 species in the continental arid regions.
英文关键词	greenhouse gas denitrification soil organic carbon hay yield crude protein yield pasture
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:000580313300001
WOS关键词	GREENHOUSE-GAS EMISSIONS ; CROPPING SYSTEMS ; CLIMATE-CHANGE ; N2O EMISSIONS ; YIELD ; FERTILIZER ; RESPIRATION ; INTENSITY ; SALINITY ; SORGHUM
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326952
作者单位	[Ning, Jiao; Hou, Fujiang] Lanzhou Univ, Coll Pastoral Agr Sci & Technol, State Key Lab Grassland Agroecosyst, Key Lab Grassland Livestock Ind Innovat,Minist Ag, Lanzhou 730020, Peoples R China; [He, Xiong Z.] Massey Univ, Coll Sci, Sch Agr & Environm, Private Bag 11222, Palmerston North 4442, New Zealand
推荐引用方式 GB/T 7714	Ning, Jiao,He, Xiong Z.,Hou, Fujiang. C3 and C4 Grass Species: Who Can Reduce Soil Nitrous Oxide Emissions in a Continental Arid Region?[J]. 兰州大学,2020,11(9).
APA	Ning, Jiao,He, Xiong Z.,&Hou, Fujiang.(2020).C3 and C4 Grass Species: Who Can Reduce Soil Nitrous Oxide Emissions in a Continental Arid Region?.ATMOSPHERE,11(9).
MLA	Ning, Jiao,et al."C3 and C4 Grass Species: Who Can Reduce Soil Nitrous Oxide Emissions in a Continental Arid Region?".ATMOSPHERE 11.9(2020).