干旱区生态环境知识资源中心(Arid): Competitive interaction in jujube tree/cotton agroforestry system in Xinjiang province, northwestern China

Arid

DOI	10.1007/s10457-017-0153-y
	Competitive interaction in jujube tree/cotton agroforestry system in Xinjiang province, northwestern China
	Zhang, W.1; Wang, B. J.1; Gan, Y. W.1; Duan, Z. P.1; Hao, X. D.1; Xu, W. L.2; Li, L. H.1
通讯作者	Li, L. H.
来源期刊	AGROFORESTRY SYSTEMS
ISSN	0167-4366
EISSN	1572-9680
出版年	2019
卷号	93 期号:2 页码:591-605
英文摘要	A field study was conducted at Hetian oasis, southern Xinjiang, northwestern China, to investigate root distribution and morphology affected by interspecific interactions between jujube trees (Ziziphus jujuba Mill.) and cotton plants (Gossypium hirsutum L.). The treatments comprised (1) sole cotton, (2) 5-year-old sole jujube trees, (3) 7-year-old sole jujube trees, (4) 9-year-old sole jujube trees, (5) intercropping of cotton/5- year-old jujube trees, (6) intercropping of cotton/7-year-old jujube trees, and (7) intercropping of cotton/9-year-old jujube trees. Roots in each plot were sampled vertically by auger to a depth of 100cm at 20-cm intervals and horizontally up to 150cm away from the base of the trees at 30-cm intervals. The results showed that all jujube/cotton intercropping systems exhibited advantages of intercropping, with a land equivalent ratio>1. The roots of both intercropped cotton and jujube had lower root length density (RLD) and root diameter (RD) at all soil depths compared with those of sole-cropped cotton and jujube trees. Interspecific competition with jujube trees altered the root development and morphology of the cotton plants. The roots of the trees spread underneath the crop and the roots of intercropped cotton tended to have a shallower distribution in the soil profile. A greater distance from the trees resulted in less influence on the RLD and RD of intercropped cotton. Older jujube trees had more developed roots and consequently higher RLD and RD. These findings may partly explain the interspecific competition effects in jujube tree/cotton agroforestry systems. However, the mechanisms underlying the root interactions between cotton and jujube require further investigation.
英文关键词	Intercropping Interspecific interactions Jujube tree Cotton Land equivalent ratio (LER) Root length density (RLD) Root diameter (RD) Root spatial distribution
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000461545400018
WOS关键词	ALLEY CROPPING SYSTEM ; ILLINOENSIS K. KOCH ; INTERSPECIFIC COMPETITION ; GROUND INTERACTIONS ; MIDWESTERN USA ; ECOLOGICAL INTERACTIONS ; ALLEYCROPPING SYSTEM ; ROOT LENGTH ; MAIZE ; PECAN
WOS类目	Agronomy ; Forestry
WOS研究方向	Agriculture ; Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214066
作者单位	1.Shihezi Univ, Coll Agr, Shihezi 832003, Xinjiang, Peoples R China; 2.Xinjiang Acad Agr Sci, Inst Soil & Fertilizer & Agr Water Conservat, Urumqi 830091, Xinjiang, Peoples R China
推荐引用方式 GB/T 7714	Zhang, W.,Wang, B. J.,Gan, Y. W.,et al. Competitive interaction in jujube tree/cotton agroforestry system in Xinjiang province, northwestern China[J],2019,93(2):591-605.
APA	Zhang, W..,Wang, B. J..,Gan, Y. W..,Duan, Z. P..,Hao, X. D..,...&Li, L. H..(2019).Competitive interaction in jujube tree/cotton agroforestry system in Xinjiang province, northwestern China.AGROFORESTRY SYSTEMS,93(2),591-605.
MLA	Zhang, W.,et al."Competitive interaction in jujube tree/cotton agroforestry system in Xinjiang province, northwestern China".AGROFORESTRY SYSTEMS 93.2(2019):591-605.