水资源与水工程学报

文章摘要

王磊,马英杰,赵经华,洪明,阿迪力江·艾麦尔.干旱区滴灌核桃树根系空间分布特性研究Journal of Water Resources and Water Engineering[J].,2013,24(5):92-95

干旱区滴灌核桃树根系空间分布特性研究

Study on characteristic of root distribution of walnut tree under condition of drip irrigation in arid area

Received:May 09, 2013 Revised:August 30, 2013

DOI：10.11705/j.issn.1672-643X.2013.05.020

中文关键词: 干旱区滴灌核桃树根系分布特性

英文关键词: arid area drip irrigation walnut tree root system distribution characteristic

基金项目:新疆维吾尔自治区重大专项(201130103-1)； “十二五”国家科技支撑项目(2011Bad29B05)

Author Name	Affiliation
WANG Lei	College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052,China [KH*3D]
MA Yingjie	College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052,China [KH*3D]
ZHAO Jinghua	College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052,China [KH*3D]
HONG Ming	College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052,China [KH*3D]
ADilijiang·Aimaier	College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052,China [KH*3D]

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中文摘要:

为了研究核桃树根系空间分布特性,本文使用分层分段挖掘法对干旱区滴灌方式下核桃树根系总根长、根重、有效吸收根根长的空间分布规律进行了研究。研究表明:核桃树根系总根长水平方向主要分布在0~120cm处,占其总分布的90.84%；垂直方向主要分布在0~90cm处,占其总分布的78.75%。根重水平方向主要分布在0~30cm处,占其总分布的52.49%；垂直方向主要分布在15~75cm处,占其总分布的61.12%。有效吸水根根长在水平距离60cm和垂直深度60cm处为分布密集区。在距离树干水平距离60cm和垂直深度60cm附近的根区,应作为核桃树水肥管理的重点区域。

英文摘要:

In order to study the spatial distribution feature of walnut tree root, this article used the layered sublevel mining method to study the total root length walnut tree, root weight, effective absorption root and the rule of spatial distribution under the mode of drip irrigation in arid areas. The research has shown that trees roots at horizontal direction are mainly distributed in 0-120cm, accounted for 90.84% of the total distribution; Vertical direction are mainly distributed in 0-90cm, accounted for 78.75% of the total distribution. Root weight at horizontal direction are mainly distributed in 0to 30cm, accounted for 52.49% of the total distribution; tree roots at vertical direction are mainly distributed in 15-75cm, accounted for 61.12% of the total distribution. Effective root length of suction is the distribution areas of concentration of 60cm at horizontal direction and 60cm at vertical direction . The root zone at 60cm horizontal distance and vertical depth of 60cm from trunk should be taken as the key area of water and fertilizer management of walnut tree.

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