干旱区生态环境知识资源中心(Arid): Assessing the Vulnerability of Maize Crop Productivity to Precipitation Anomalies: A Case Study in the Semiarid Region of Cesar, Colombia

Arid

DOI	10.3390/w15112108
	Assessing the Vulnerability of Maize Crop Productivity to Precipitation Anomalies: A Case Study in the Semiarid Region of Cesar, Colombia
	Teran-Chaves, Cesar Augusto; Duarte-Carvajalino, Julio Martin; Ipaz-Cuastumal, Claudia; Vega-Amante, Alexander; Polo-Murcia, Sonia Mercedes
通讯作者	Terán-Chaves, CA
来源期刊	WATER
EISSN	2073-4441
出版年	2023
卷号	15 期号:11
英文摘要	Climate variability is a major threat to maize (Zea mays) crops in Colombia, posing a risk to food security and compliance with Sustainable Development Goals. Therefore, this study aimed to assess the physical vulnerability of maize crops to climate variability in the semi-arid region of the Department of Cesar, Colombia, using the AquaCrop-OS model. Specifically, the study evaluated the vulnerability of maize crops to three typical meteorological years (dry, intermediate, and wet) adjusted to the growth cycle in two semesters of the year (periods I and II). An analysis of 43 years of data (1980-2022) revealed that most years in the area can be classified as intermediate, whereas the number of wet years was higher than the number of dry years. However, under the intermediate typical meteorological year scenario, maize cultivation in the department of Cesar experienced severe drought conditions during periods I and II. The study's vulnerability curve showed an increasing rate within the yield loss index when the average water stress index was between 0.5 and 0.8 for period I. The rate of increase slowed when the index exceeded 0.9. For period II, the maize crop presented a lower degree of vulnerability, with 64% of the area experiencing a yield loss rate between 5% and 30%. The study also determined the required irrigation depth of water for optimal yields, which ranged from 70 to 160 mm during the growing season for all maize crop scenarios in the Department of Cesar. The results of this study can contribute to the consolidation of a database of physical vulnerability and threats of precipitation anomalies on regional and national scales. Overall, this study's evaluation of the physical vulnerability of maize crops can help producers develop better strategies to mitigate the impacts of climate variability and ensure regional food security.
英文关键词	AquaCrop-OS water stress index food security
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:001006245800001
WOS关键词	REGULATED DEFICIT IRRIGATION ; WATER PRODUCTIVITY ; YIELD RESPONSE ; CLIMATE-CHANGE ; ADAPTATION
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/2XILL650/399033
推荐引用方式 GB/T 7714	Teran-Chaves, Cesar Augusto,Duarte-Carvajalino, Julio Martin,Ipaz-Cuastumal, Claudia,et al. Assessing the Vulnerability of Maize Crop Productivity to Precipitation Anomalies: A Case Study in the Semiarid Region of Cesar, Colombia[J],2023,15(11).
APA	Teran-Chaves, Cesar Augusto,Duarte-Carvajalino, Julio Martin,Ipaz-Cuastumal, Claudia,Vega-Amante, Alexander,&Polo-Murcia, Sonia Mercedes.(2023).Assessing the Vulnerability of Maize Crop Productivity to Precipitation Anomalies: A Case Study in the Semiarid Region of Cesar, Colombia.WATER,15(11).
MLA	Teran-Chaves, Cesar Augusto,et al."Assessing the Vulnerability of Maize Crop Productivity to Precipitation Anomalies: A Case Study in the Semiarid Region of Cesar, Colombia".WATER 15.11(2023).