| 紫穗槐护坡根际土壤中量、微量元素的含量特征 |
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| 引用本文： | 宋卫科,何佳庆,杨丽红,卢鑫,李捷.紫穗槐护坡根际土壤中量、微量元素的含量特征[J].草业科学,2022,39(1):21-29. |
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| 作者姓名： | 宋卫科 何佳庆 杨丽红 卢鑫 李捷 |
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| 作者单位： | 甘肃恒和交通设施安装有限公司, 甘肃 兰州 730070;甘肃天佑生态环境工程有限公司, 甘肃 兰州 730084;兰州大学草地农业科技学院 草地农业生态系统国家重点实验室, 甘肃 兰州 730020 |
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| 基金项目： | 柔性生态维护系统在高陡岩质边坡的生态防护应用(071100196) |
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| 摘 要： | 高速公路边坡生态修复过程中,所选取的恢复植物对其所需的中量、微量元素有效含量的影响和改善边坡生态环境至关重要.本研究以高速公路典型护坡物种紫穗槐(Amorpha fruticosa)根际土壤为研究对象,分析了不同土壤深度紫穗槐根际与非根际土壤主要中量和微量元素有效含量及其根际对元素的富集效应.结果表明:微量元素铁和铜以...
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| 关 键 词： | 紫穗槐 边坡 微量元素 生态修复 根际 富集率 相关性 |
Characteristics of effective content of medium and trace elements in Amorpha fruticosa root soil for slope protection |
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| SONG Weike,HE Jisqing,YANG Lihong,LU Xin,LI Jie.Characteristics of effective content of medium and trace elements in Amorpha fruticosa root soil for slope protection[J].Pratacultural Science,2022,39(1):21-29. |
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| Authors: | SONG Weike HE Jisqing YANG Lihong LU Xin LI Jie |
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| Institution: | (Gansu Henghe Traffic Engineering Technology Development Co.Ltd,Lanzhou 730070,Gansu,China;Gansu Tianyou Ecological Environment Engineering Co.Ltd,Lanzhou 730084,Gansu,China;State Key Laboratory of Grassland Agro-ecosystems,College of Pastoral Agriculture Science and Technology,Lanzhou University,Lanzhou 730020,Gansu,China) |
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| Abstract: | During highway slope ecological restoration, selecting restoration plants is important to maintain the soil medium and trace element content, as well as to improve the slope ecological environment. In this study, Amorpha fruticosa, a typical slope protection species on expressways, was examined. Root soil was collected as the research object, and the effective content of major medium and trace elements in the rhizosphere and non-rhizosphere soils of A. fruticosa at different soil depths, and their root enrichment effects, were analyzed. The results showed that the content of trace elements such as Fe and Cu and that of medium elements such as Mg in the rhizosphere was significantly higher than that in the non-rhizosphere, while the content of Mn and Zn in the rhizosphere was significantly lower than that in the non-rhizosphere. There was no significant difference in Ca content between the rhizosphere and non-rhizosphere. With increasing soil depth, the content of Fe, Mn, Cu, and Mg decreased gradually, while that of Zn and Ca showed no obvious trend. A correlation between A. fruticosa rhizosphere and non-rhizosphere soil elements was confirmed, and Fe, Cu, Ca, and Mg were enriched to different degrees in the roots. The results showed that planting A. fruticosa on the slope of the expressway had potential effects in terms of maintaining and improving medium and trace element content in the soil and resisting slope soil erosion. |
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| Keywords: | Amorpha fruticosa slope trace elements ecological restoration rhizosphere enrichment ratio correlation |
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