干旱区生态环境知识资源中心(Arid): Optimizing Irrigation Strategies to Improve Water Use Efficiency of Cotton in Northwest China Using RZWQM2

Arid

DOI	10.3390/agriculture12030383
	Optimizing Irrigation Strategies to Improve Water Use Efficiency of Cotton in Northwest China Using RZWQM2
	Chen, Xiaoping; Feng, Shaoyuan; Qi, Zhiming; Sima, Matthew W.; Zeng, Fanjiang; Li, Lanhai; Cheng, Haomiao; Wu, Hao
通讯作者	Feng, SY
来源期刊	AGRICULTURE-BASEL
EISSN	2077-0472
出版年	2022
卷号	12 期号:3
英文摘要	Irrigated cotton (Gossypium hirsutum L.) is produced mainly in Northwest China, where groundwater is heavily used. To alleviate water scarcity and increase regional economic benefits, a four-year (2016-2019) field experiment was conducted in Qira Oasis, Xingjiang Province, to evaluate irrigation water use efficiency (IWUE) in cotton production using the Root Zone Water Quality Model (RZWQM2), that was calibrated and validated using volumetric soil water content (theta), soil temperature (T-soil degrees) and plant transpiration (T), along with cotton growth and yield data collected from full and deficit irrigation experimental plots managed with a newly developed Decision Support System for Irrigation Scheduling (DSSIS). In the validation phase, RZWQM2 adequately simulated (S) topsoil theta and T-soil degrees, as well as cotton growth (average index of agreement (IOA) > 0.76). Relative root mean squared error (RRMSE) and percent bias (PBIAS) of cotton seed yield were 8% and 2.5%, respectively, during calibration, and 20% and -10.3% during validation. The cotton crop's (M) T was well S (-18% < PBIAS < 14% and IOA > 0.95) for both full and deficit irrigation fields. The validated RZWQM2 model was subsequently run with seven irrigation scenarios with 850 to 350 mm water (Irr850, Irr750, Irr700, Irr650, Irr550, Irr450, and Irr350) and long-term (1990-2019) weather data to determine the best IWUE. Simulation results showed that the Irr650 treatment generated the greatest cotton seed yield (4.09 Mg ha(-1)) and net income (US $3165 ha(-1)), while the Irr550 treatment achieved the greatest IWUE (6.53 kg ha(-1) mm(-1)) and net water production (0.94 $ m(-3)). These results provided farmers guidelines to adopt deficit irrigation strategies.
英文关键词	RZWQM2 DSSIS long-term irrigation cotton seed yield IWUE
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:000775655700001
WOS关键词	DRIP IRRIGATION ; MAIZE PRODUCTION ; ENERGY-BALANCE ; N2O EMISSIONS ; MODEL ; SIMULATION ; PERFORMANCE ; YIELD ; OPTIMIZATION ; TEMPERATURE
WOS类目	Agronomy
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/391673
推荐引用方式 GB/T 7714	Chen, Xiaoping,Feng, Shaoyuan,Qi, Zhiming,et al. Optimizing Irrigation Strategies to Improve Water Use Efficiency of Cotton in Northwest China Using RZWQM2[J],2022,12(3).
APA	Chen, Xiaoping.,Feng, Shaoyuan.,Qi, Zhiming.,Sima, Matthew W..,Zeng, Fanjiang.,...&Wu, Hao.(2022).Optimizing Irrigation Strategies to Improve Water Use Efficiency of Cotton in Northwest China Using RZWQM2.AGRICULTURE-BASEL,12(3).
MLA	Chen, Xiaoping,et al."Optimizing Irrigation Strategies to Improve Water Use Efficiency of Cotton in Northwest China Using RZWQM2".AGRICULTURE-BASEL 12.3(2022).