干旱区生态环境知识资源中心(Arid): Development and Evaluation of an Agricultural Drought Index by Harnessing Soil Moisture and Weather Data

Arid

DOI	10.3390/w11071375
	Development and Evaluation of an Agricultural Drought Index by Harnessing Soil Moisture and Weather Data
	Ajaz, Ali 1; Taghvaeian, Saleh 1; Khand, Kul 1; Gowda, Prasanna H.2; Moorhead, Jerry E.3
通讯作者	Ajaz, Ali
来源期刊	WATER
EISSN	2073-4441
出版年	2019
卷号	11 期号:7
英文摘要	A new agricultural drought index was developed for monitoring drought impacts on agriculture in Oklahoma. This new index, called the Soil Moisture Evapotranspiration Index (SMEI), estimates the departure of aggregated root zone moisture from reference evapotranspiration. The SMEI was estimated at five locations across Oklahoma representing different climates. The results showed good agreement with existing soil moisture-based (SM) and meteorological drought indices. In addition, the SMEI had improved performance compared to other indices in capturing the effects of temporal and spatial variations in drought. The relationship with crop production is a key characteristic of any agricultural drought index. The correlations between winter wheat production and studied drought indices estimated during the growing period were investigated. The correlation coefficients were largest for SMEI (r > 0.9) during the critical crop growth stages when compared to other drought indices, and r decreased by moving from semi-arid to more humid regions across Oklahoma. Overall, the results suggest that the SMEI can be used effectively for monitoring the effects of drought on agriculture in Oklahoma.
英文关键词	crop production evapotranspiration winter wheat Oklahoma Mesonet
类型	Article
语种	英语
国家	USA
开放获取类型	gold, Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000480632300060
WOS关键词	OKLAHOMA MESONET ; SEVERITY INDEX ; CLIMATE-CHANGE ; WATER-DEFICIT ; PRECIPITATION ; EVAPOTRANSPIRATION ; TEMPERATURE ; SENSITIVITY
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/219219
作者单位	1.Oklahoma State Univ, Dept Biosyst & Agr Engn, Stillwater, OK 74078 USA; 2.ARS, USDA, Grazinglands Res Lab, El Reno, OK 73036 USA; 3.ARS, USDA, Conservat & Prod Res Lab, Bushland, TX 79012 USA
推荐引用方式 GB/T 7714	Ajaz, Ali,Taghvaeian, Saleh,Khand, Kul,et al. Development and Evaluation of an Agricultural Drought Index by Harnessing Soil Moisture and Weather Data[J],2019,11(7).
APA	Ajaz, Ali,Taghvaeian, Saleh,Khand, Kul,Gowda, Prasanna H.,&Moorhead, Jerry E..(2019).Development and Evaluation of an Agricultural Drought Index by Harnessing Soil Moisture and Weather Data.WATER,11(7).
MLA	Ajaz, Ali,et al."Development and Evaluation of an Agricultural Drought Index by Harnessing Soil Moisture and Weather Data".WATER 11.7(2019).