干旱区生态环境知识资源中心(Arid): Trends in Runoff From Dryland, Cropped Fields on the Texas High Plains, and Implications for Their Management

Arid

DOI	10.3389/fsufs.2020.529319
	Trends in Runoff From Dryland, Cropped Fields on the Texas High Plains, and Implications for Their Management
	Baumhardt, R. Louis; Marek, Gary; Brauer, David
通讯作者	Brauer, D
来源期刊	FRONTIERS IN SUSTAINABLE FOOD SYSTEMS
EISSN	2571-581X
出版年	2020
卷号	4
英文摘要	Capturing precipitation as soil moisture is essential for successful dryland crop production, especially in semi-arid regions. Runoff is a loss of precipitation that does not result in increased soil moisture. Therefore, understanding the factors affecting runoff from cropped fields is important to successful dryland farming. Runoff frequency and volume were assessed using data from 1990 to 2009 from a long-term wheat-sorghum-fallow rotation near Bushland, Texas (USA), an area with an annual precipitation of similar to 500 mm and pan evaporation rate of over 2,000 mm. The likelihood that a rainfall event generated runoff increased with increasing rainfall volume such that all storms in excess of 50 mm yielded runoff. Runoff volume also increased with storm intensity. Rainfall in the preceding week was positively related to runoff volume. Runoff tended to be greater in no-till plots as compared to stubble mulched plots. During El Nino phase of the El Nino-Southern Oscillation the number of precipitations during the months of December through February tended to be higher. During La Nina phase of the El Nino-Southern Oscillation the number of precipitations during the months of November through January, respectively, tended to be lower. There also was a tendency for rainfall events during the El Nino phase to be of greater volume. However, the data did not support the hypothesis that greater winter rainfall with the El Nino event was associated with greater runoff. Therefore, greater rainfall during the El Nino phases should have been available for crop production. These results are discussed with regarding crop management practices for the Texas High Plains.
英文关键词	rainfall volume semiarid runoff soil moisture crop production
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:000590598600001
WOS关键词	EL-NINO ; IRRIGATION STRATEGIES ; RAIN INFILTRATION ; CORN PRODUCTION ; GRAIN-SORGHUM ; NO-TILLAGE ; SOIL ; EVAPORATION ; RESIDUE ; PRECIPITATION
WOS类目	Food Science & Technology
WOS研究方向	Food Science & Technology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/334743
作者单位	[Baumhardt, R. Louis; Marek, Gary; Brauer, David] USDA ARS, Conservat & Prod Res Lab, Soil & Water Management Res Unit, PO Drawer 10, Bushland, TX 79012 USA
推荐引用方式 GB/T 7714	Baumhardt, R. Louis,Marek, Gary,Brauer, David. Trends in Runoff From Dryland, Cropped Fields on the Texas High Plains, and Implications for Their Management[J],2020,4.
APA	Baumhardt, R. Louis,Marek, Gary,&Brauer, David.(2020).Trends in Runoff From Dryland, Cropped Fields on the Texas High Plains, and Implications for Their Management.FRONTIERS IN SUSTAINABLE FOOD SYSTEMS,4.
MLA	Baumhardt, R. Louis,et al."Trends in Runoff From Dryland, Cropped Fields on the Texas High Plains, and Implications for Their Management".FRONTIERS IN SUSTAINABLE FOOD SYSTEMS 4(2020).