干旱区生态环境知识资源中心(Arid): Spatial distribution and dynamics of cotton fine root under film-mulched drip irrigation

Arid

DOI	10.1016/j.indcrop.2022.114693
	Spatial distribution and dynamics of cotton fine root under film-mulched drip irrigation
	Chen, Wenling; Chen, Feifei; Lai, Shanxing; Jin, Menggui; Xu, Siyu; Liu, Yanfeng; Liang, Xing; Ferre, Ty P. A.
通讯作者	Jin, MG
来源期刊	INDUSTRIAL CROPS AND PRODUCTS
ISSN	0926-6690
EISSN	1872-633X
出版年	2022
卷号	179
英文摘要	Fine roots distribution and dynamics (production, mortality, and longevity) significantly impact the crop soil ecosystems. However, the spatial distribution and dynamics of cotton (Gossypium hirsutum L.) fine roots under film-mulched drip irrigation are poorly understood. The present study aims to characterize these distributions and dynamics measured using a minirhizotron technique and the influence of soil conditions. The non-uniform distribution of soil moisture and salinity may lead to the differences of root length density (RLD) distribution. A clear decreased trend for the average RLD was observed in the shallow soil layer due to high localized salinity accumulated after brackish water irrigation. There existed a clear high soil moisture content strip at depth which may lead to a high RLD peak in the 95-100 cm soil layer. Average live root production was characterized by a very high rate during the initial growth stage followed by a decline after budding, which in turn was followed by a slight increase during boll opening. The average number of new roots was highest during the initial growth stages, decreasing after the budding stage. Thinner roots in the deep soil had shorter lifespans than those in shallow soil. Our study indicated that the minirhizotron technique can be used reliably as an in situ, nondestructive method for estimating cotton fine roots distribution and dynamics under film-mulched drip irrigation. To evaluate cotton fine root distribution and dynamics under film-mulched drip irrigation more accurately, a cotton root system architecture model could be parameterized in space and time based on the minirhizotron observations.
英文关键词	Arid region Film-mulched drip irrigation Fine root distribution Fine root dynamics Minirhizotron technique Soil conditions
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000779432600004
WOS关键词	GROWTH DYNAMICS ; SALT ACCUMULATION ; SAMPLING METHODS ; NITROGEN UPTAKE ; SOIL-SALINITY ; MINIRHIZOTRON ; WATER ; LENGTH ; DENSITY ; YIELD
WOS类目	Agricultural Engineering ; 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/2XILL650/393090
推荐引用方式 GB/T 7714	Chen, Wenling,Chen, Feifei,Lai, Shanxing,et al. Spatial distribution and dynamics of cotton fine root under film-mulched drip irrigation[J],2022,179.
APA	Chen, Wenling.,Chen, Feifei.,Lai, Shanxing.,Jin, Menggui.,Xu, Siyu.,...&Ferre, Ty P. A..(2022).Spatial distribution and dynamics of cotton fine root under film-mulched drip irrigation.INDUSTRIAL CROPS AND PRODUCTS,179.
MLA	Chen, Wenling,et al."Spatial distribution and dynamics of cotton fine root under film-mulched drip irrigation".INDUSTRIAL CROPS AND PRODUCTS 179(2022).