Arid
DOI10.1016/j.agwat.2021.107118
Influence of jujube/cotton intercropping on soil temperature and crop evapotranspiration in an arid area
Ai, Pengrui; Ma, Yingjie; Hai, Ying
通讯作者Ai, PR ; Ma, YJ ; Hai, Y (corresponding author), Xingjiang Agr Univ, Coll Hydraul & Civil Engn, Urumqi 830052, Peoples R China.
来源期刊AGRICULTURAL WATER MANAGEMENT
ISSN0378-3774
EISSN1873-2283
出版年2021
卷号256
英文摘要Intercropping is a common strategy to improve land use efficiency in many areas of the world. However, intercropping induces adaptive changes that remain poorly understood with regard to soil temperature and inter species moisture competition. This is especially true for the interspecies relationship between intercropped jujube (Ziziphus jujuba Mill.) and cotton (Gossypium hirsutum L.). To gain insight into this relationship and its influence, field experiments were conducted in 2015-2017 to analyze how soil moisture and temperature were affected under jujube/cotton intercropping. Compared with single cropping, intercropping lowered the soil temperature under jujube by 0.04-0.87 degrees C, and lowered soil temperature under cotton by 0.63-2.92 degrees C for all months except April and May. The soil temperature stability of intercropping was significantly higher than that of monocropping. These changes were generally conducive to crop growth, although lowered soil temperature during the later growth period was not beneficial to jujube quality. Intercropping jujube growth was inhibited not only by interspecific competition, but also by plastic film mulching of cotton. Throughout the total growth period, both transpiration and soil evaporation in intercropped jujube decreased by 12 mm and 39 mm, respectively, and crop yields decreased by 20-30%. However, due to disproportionate absorption of irrigation water by cotton, evapotranspiration during the entire growing season increased by 30 mm, and crop yield increased by 30%. In addition, through carbon stable isotope method, the transpiration ratio of single-cropped jujube and cotton was 0.79-0.85:1, and that of intercropped jujube and cotton was 0.65-0.68:1. Cotton dominated during the critical period of water demand. Therefore, although intercropping can reduce water loss by evaporation and improve the efficiency of land use, from the perspective of interspecific water relations, the dominant position of cotton had pronounced inhibitory effects on jujube. Continuous implementation of inter cropping over many years is not conducive to the development of fruit tree planting, especially as trees become older.
英文关键词Soil temperature Evapotranspiration Crop water distribution Stable carbon isotope Yield
类型Article
语种英语
收录类别SCI-E
WOS记录号WOS:000696806100012
WOS关键词CARBON-ISOTOPE DISCRIMINATION ; WATER-USE EFFICIENCY ; STABLE CARBON ; DRIP IRRIGATION ; MAIZE ; YIELD ; PEA ; AGROFORESTRY ; FIELD ; PRODUCTIVITY
WOS类目Agronomy ; Water Resources
WOS研究方向Agriculture ; Water Resources
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/362381
作者单位[Ai, Pengrui; Ma, Yingjie; Hai, Ying] Xingjiang Agr Univ, Coll Hydraul & Civil Engn, Urumqi 830052, Peoples R China
推荐引用方式
GB/T 7714
Ai, Pengrui,Ma, Yingjie,Hai, Ying. Influence of jujube/cotton intercropping on soil temperature and crop evapotranspiration in an arid area[J],2021,256.
APA Ai, Pengrui,Ma, Yingjie,&Hai, Ying.(2021).Influence of jujube/cotton intercropping on soil temperature and crop evapotranspiration in an arid area.AGRICULTURAL WATER MANAGEMENT,256.
MLA Ai, Pengrui,et al."Influence of jujube/cotton intercropping on soil temperature and crop evapotranspiration in an arid area".AGRICULTURAL WATER MANAGEMENT 256(2021).
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