干旱区生态环境知识资源中心(Arid): Micro-climatic and crop responses to micro-sprinkler irrigation

Arid

DOI	10.1016/j.agwat.2020.106498
	Micro-climatic and crop responses to micro-sprinkler irrigation
	Liu, Zhipeng; Jiao, Xiyun; Zhu, Chengli; Katul, Gabriel G.; Ma, Junyong; Guo, Weihua
通讯作者	Ma, JY (corresponding author), Xinjiang Acad Agr & Reclamat Sci, Shihezi 832000, Peoples R China.
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2021
卷号	243
英文摘要	The frequency and severity of droughts and heat stresses are becoming a threat to crop production and food security in arid and semi-arid regions worldwide. To ameliorate both stresses simultaneously, micro-sprinkler systems are being proposed and their performance is investigated here for gray jujube trees planted in an arid region. The experiments focused on the effects of different levels of micro-sprinkler irrigation amounts on air temperature, relative humidity, vapor pressure deficit, leaf-level physiological processes, yield, and quality of the fruit. The experiment was carried out over a two-year period in a jujube orchard consisting of three micro sprinkler irrigation levels that spray water at 2 mm d(-1) (T1), 4 mm d(-1) (T2), 6 mm d(-1) (T3) and the control at the flowering to fruit set stage. Within the canopy volume, the application of micro-sprinkler cooling system was shown to decrease air temperature by 1 to 3 degrees C and enhance air relative humidity by 11 17% when compared with the control. The associated decrease in air temperature and increases in air relative humidity reduced the vapor pressure deficit (VPD) from 3 kPa to 2 kPa. The measured VPD reduction across treatments explained much of the measured differences in physiological responses (net photosynthetic rate, transpiration rate, stomatal conductance and water use efficiency) at the leaf scale. The aforementioned physiological improvements increased the quantity and quality of the jujube fruit. The study adds to the growing literature that supports the use of micro-sprinklers as a cooling system to ameliorate the negative effects of droughts and heat under extreme heat stress conditions.
英文关键词	Evaporative cooling Micro-sprinkler irrigation Physiological responses Vapor pressure deficit Yield
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000594659800007
WOS关键词	FRUIT-QUALITY ; MICROCLIMATE ; TEMPERATURE ; CARBON ; FIELD ; SALINITY ; DROUGHT ; DEFICIT ; JUJUBE ; REDUCE
WOS类目	Agronomy ; Water Resources
WOS研究方向	Agriculture ; Water Resources
来源机构	河海大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/347671
作者单位	[Liu, Zhipeng; Jiao, Xiyun; Zhu, Chengli; Guo, Weihua] Hohai Univ, Coll Agr Sci & Engn, Nanjing 210098, Peoples R China; [Liu, Zhipeng; Katul, Gabriel G.] Duke Univ, Nicholas Sch Environm, Durham, NC 27708 USA; [Jiao, Xiyun] Hohai Univ, State Key Lab Hydrol Water Resources & Hydraul En, Nanjing 210098, Peoples R China; [Jiao, Xiyun] Hohai Univ, Cooperat Innovat Ctr Water Safety & Hydro Sci, Nanjing 210098, Peoples R China; [Ma, Junyong] Xinjiang Acad Agr & Reclamat Sci, Shihezi 832000, Peoples R China; [Ma, Junyong] Minist Agr, Shihezi Expt Stn Crop Water Use, Shihezi 832000, Peoples R China
推荐引用方式 GB/T 7714	Liu, Zhipeng,Jiao, Xiyun,Zhu, Chengli,et al. Micro-climatic and crop responses to micro-sprinkler irrigation[J]. 河海大学,2021,243.
APA	Liu, Zhipeng,Jiao, Xiyun,Zhu, Chengli,Katul, Gabriel G.,Ma, Junyong,&Guo, Weihua.(2021).Micro-climatic and crop responses to micro-sprinkler irrigation.AGRICULTURAL WATER MANAGEMENT,243.
MLA	Liu, Zhipeng,et al."Micro-climatic and crop responses to micro-sprinkler irrigation".AGRICULTURAL WATER MANAGEMENT 243(2021).