干旱区生态环境知识资源中心(Arid): The Depth of Water Taken up by Walnut Trees during Different Phenological Stages in an Irrigated Arid Hilly Area in the Taihang Mountains

Arid

DOI	10.3390/f10020121
	The Depth of Water Taken up by Walnut Trees during Different Phenological Stages in an Irrigated Arid Hilly Area in the Taihang Mountains
	Liu, Yang 1; Zhang, Xuemei 1,2,3; Zhao, Shuang 4; Ma, Huabing 2,3; Qi, Guohui 1,2,3; Guo, Suping 1,2,3
通讯作者	Qi, Guohui
来源期刊	FORESTS
ISSN	1999-4907
出版年	2019
卷号	10 期号:2
英文摘要	Understanding how the soil environment impacts root water uptake location and magnitude is important for better management of plant irrigation. In this study, stable hydrogen and oxygen isotope composition were used to determine seasonal variations in the depth of water taken up by walnut trees during different phenological stages in an irrigated arid hilly area in the Taihang Mountains in China. The contributions of soil water at different depths to the water taken up were quantified by the MixSIAR Bayesian isotope mixing model. The results indicated that water taken up by the walnut trees was sourced mainly from soil water in the 0-20 cm soil layer at the sprouting and leaf expansion stages (62.95%), and the 20-40 cm soil layer at blossoming and fruit-bearing (43.45%), fruit expansion (41.8%), and fruit maturity (39.15%) stages. The mean soil depth of the water taken up by the walnut trees gradually decreased as the phenological stages advanced. The proportions of various soil layer water contributions to the walnut trees differed throughout the phenological stages, and the proportion of deeper soil water contributions gradually increased as the phenological stages of walnut trees advanced. The results of the present study indicated that water sources for walnut trees varied by depth during different phenological stages. In addition to soil moisture, soil temperature may also be an important factor affecting the depth of water taken up by walnut trees. The results also provided scientific implications for water-saving irrigation management.
英文关键词	water sources stable isotopes MixSIAR model walnut phenological stage
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	gold, Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000460744000045
WOS关键词	SOIL-WATER ; STABLE-ISOTOPES ; SEASONAL-VARIATIONS ; WOODY-PLANTS ; PERSPECTIVES ; MAIZE ; FIELD
WOS类目	Forestry
WOS研究方向	Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215682
作者单位	1.Hebei Agr Univ, Coll Forestry, Baoding 071000, Hebei, Peoples R China; 2.Res Ctr Walnut Engn & Technol Hebei, Lincheng 054300, Hebei, Peoples R China; 3.Inst Walnut Ind Technol Hebei Prov Xingtai, Lincheng 054300, Hebei, Peoples R China; 4.Hebei Acad Agr & Forestry Sci, Shijiazhuang 050000, Hebei, Peoples R China
推荐引用方式 GB/T 7714	Liu, Yang,Zhang, Xuemei,Zhao, Shuang,et al. The Depth of Water Taken up by Walnut Trees during Different Phenological Stages in an Irrigated Arid Hilly Area in the Taihang Mountains[J],2019,10(2).
APA	Liu, Yang,Zhang, Xuemei,Zhao, Shuang,Ma, Huabing,Qi, Guohui,&Guo, Suping.(2019).The Depth of Water Taken up by Walnut Trees during Different Phenological Stages in an Irrigated Arid Hilly Area in the Taihang Mountains.FORESTS,10(2).
MLA	Liu, Yang,et al."The Depth of Water Taken up by Walnut Trees during Different Phenological Stages in an Irrigated Arid Hilly Area in the Taihang Mountains".FORESTS 10.2(2019).