Interspecific variation of tree root architecture in a temperate agroforestry system characterized using ground-penetrating radar

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• 作者：Kira A. Borden ; Sean C. Thomas ; Marney E. Isaac
• 关键词：Alley cropping ; Coarse roots ; Fine root density ; Root distribution ; Rooting depth ; Tree ; based intercropping
• 刊名：Plant and Soil
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：410
• 期：1-2
• 页码：323-334
• 全文大小：
• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Plant Sciences; Soil Science & Conservation; Plant Physiology; Ecology;
• 出版者：Springer International Publishing
• ISSN：1573-5036
• 卷排序：410

文摘

Background and aimsRoot system architecture regulates belowground access to soil resources. Variation in root architecture is important in agroforestry systems given management objectives to optimize resource acquisition between trees and crops. However, the distributions of live tree roots in agroforestry systems remain understudied due to methodological constraints. In this study, we used ground-penetrating radar (GPR) to describe variation in whole-plant root architecture among tree species at the same agricultural site, with a specific focus on vertical coarse and fine root distributions within the zone of competition with neighbouring crops.