干旱区生态环境知识资源中心(Arid): Soil Gaseous Emissions and Partial C and N Balances of Small-Scale Farmer Fields in a River Oasis of Western Mongolia

Arid

DOI	10.3390/su11123362
	Soil Gaseous Emissions and Partial C and N Balances of Small-Scale Farmer Fields in a River Oasis of Western Mongolia
	Jordan, Greta 1; Goenster-Jordan, Sven 1; Ulziisuren, Baigal 2; Buerkert, Andreas 1
通讯作者	Goenster-Jordan, Sven
来源期刊	SUSTAINABILITY
EISSN	2071-1050
出版年	2019
卷号	11 期号:12
英文摘要	During the last decades, Mongolian river oases were subjected to an expansion of farmland. Such intensification triggers substantial gaseous carbon (C) and nitrogen (N) losses that may aggravate disequilibria in the soil surface balances of agricultural plots. This study aims to quantify such losses, and assess the implications of these emissions against the background of calculated partial C and N balances. To this end, CO2, NH3, and N2O soil emissions from carrot, hay, and rye plots were measured by a portable dynamic closed chamber system connected to a photoacoustic multi-gas analyzer in six farms of the Mongolian river oasis Bulgan sum center. Average C and N flux rates (1313 g CO2-C ha(-1) h(-1) to 1774 g CO2-C ha(-1) h(-1); 2.4 g NH3-N ha(-1) h(-1) to 3.3 g NH3-N ha(-1) h(-1); 0.7 g N2O-N ha(-1) h(-1) to 1.1 g N2O-N ha(-1) h(-1)) and cumulative emissions (3506 kg C ha(-1) season(-1) to 4514 kg C ha(-1) season(-1); 7.4 kg N ha(-1) season(-1) to 10.9 kg N ha(-1) season(-1)) were relatively low compared to those of other agroecosystems, but represented a substantial pathway of losses (86% of total C inputs; 21% of total N inputs). All C and N balances were negative (-1082 kg C ha(-1) season(-1) to -1606 kg C ha(-1) season(-1); -27 kg N ha(-1) season(-1) to -65 kg N ha(-1) season(-1)). To reduce these disequilibria, application of external inputs may need to be intensified whereby such amendments should be incorporated into soil to minimize gaseous emissions.
英文关键词	ammonia carbon dioxide carbon losses closed chamber system Mongolian Altai Mountains nitrogen losses nitrous oxide photo-acoustic multi-gas monitor soil fertility
类型	Article
语种	英语
国家	Germany ; Mongolia
开放获取类型	gold, Green Published
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000473753700132
WOS关键词	LAND-USE TYPES ; CARBON SEQUESTRATION ; NUTRIENT BALANCES ; GAS-EXCHANGE ; NITROGEN-FIXATION ; LEACHING LOSSES ; NUBA MOUNTAINS ; TARIM RIVER ; WATER-USE ; FLUXES
WOS类目	Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/219010
作者单位	1.Univ Kassel, Organ Plant Prod & Agroecosyst Res Trop & Subtrop, Steinstr 19, D-37123 Witzenhausen, Germany; 2.Natl Univ Mongolia, Dept Biol, Sch Arts & Sci, Youth Str 1 Baga Toiruu, Ulan Bator 210646, Mongolia
推荐引用方式 GB/T 7714	Jordan, Greta,Goenster-Jordan, Sven,Ulziisuren, Baigal,et al. Soil Gaseous Emissions and Partial C and N Balances of Small-Scale Farmer Fields in a River Oasis of Western Mongolia[J],2019,11(12).
APA	Jordan, Greta,Goenster-Jordan, Sven,Ulziisuren, Baigal,&Buerkert, Andreas.(2019).Soil Gaseous Emissions and Partial C and N Balances of Small-Scale Farmer Fields in a River Oasis of Western Mongolia.SUSTAINABILITY,11(12).
MLA	Jordan, Greta,et al."Soil Gaseous Emissions and Partial C and N Balances of Small-Scale Farmer Fields in a River Oasis of Western Mongolia".SUSTAINABILITY 11.12(2019).