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In-situ assessment of soil-root bonding strength to aid in preventing soil erosion
Soil and Tillage Research ( IF 6.5 ) Pub Date : 2021-07-08 , DOI: 10.1016/j.still.2021.105140
Shaurav Alam 1 , Tanvir Manzur 2 , Eric Borquist 1 , Joseph Williams 1 , Cody Rogers 1 , David Hall 1 , William B. Patterson 1 , Joseph Higuera 1 , Erik Eklund 1 , Jay Wang 1 , John Matthews 1
Affiliation  

Research shows that construction of seawalls controls soil erosion along the coastal lines but scouring at the bottom deteriorates water clarity and causes algae growth. An environmentally friendly, sustainable solution such as controlled cultivation of plants has potential to perform better in such cases. Studies already show that plant roots’ tensile strength has direct influence on soil shear strength. However, the tensile strength tests performed in the lab cannot represent the exact ambient condition. This paper describes the development of a novel, effortless approach to carry and assemble an In-situ Smart Testing Apparatus (ISTA) that evaluates Soil Root Bonding Strength (SRBS) by pulling vegetation with roots out of the soil and measures and records the pulling strength along with the vertical displacement that takes place during the uprooting process. Another aspect of the equipment includes in-situ tensile testing capability of plant roots. In addition to those, the controlling program of the equipment stores other parameters like test date and time along with the latitude, longitude, humidity, and temperature of test location in the same file. This paper includes the initial study conducted on four different naturally grown species (Ranunculus acris, Stenotaphrum secundatum, Paspalum urvillei, and Rhynchospora mixta) using the developed ISTA near a pond at the Agricultural Department at Louisiana Tech University. Different forces required to uproot the investigated plants indicate that SRBS could be stimulated by the types and arrangements of roots inside subsoil. The obtained results reveals a strong effect of plant types and soil phase properties (soil bulk density, moisture content, air content, and pore space) on SRBS in the form of pulling force and displacement. The ISTA, thus, has significant potential to measure, store and distribute the real time data that can aid relevant professionals in preventing soil erosion and ensuring sustainable coastal ecosystems.



中文翻译:

土根结合强度的原位评估以帮助防止水土流失

研究表明,建造海堤可以控制沿海地区的水土流失,但在底部冲刷会降低水的透明度并导致藻类生长。在这种情况下,控制植物种植等环境友好、可持续的解决方案有可能表现得更好。研究已经表明,植物根系的抗拉强度对土壤抗剪强度有直接影响。然而,在实验室进行的拉伸强度测试并不能代表准确的环境条件。这篇论文描述了一部小说的发展,轻松携带和组装原位智能测试仪 (ISTA),通过将带根的植被从土壤中拔出来评估土壤根系粘合强度 (SRBS),并测量和记录拉伸强度以及在此过程中发生的垂直位移连根拔起的过程。该设备的另一个方面包括植物根系的原位拉伸测试能力。除此之外,设备的控制程序将其他参数如测试日期和时间以及测试地点的纬度、经度、湿度和温度存储在同一文件中。本文包括对四种不同的自然生长物种进行的初步研究(设备的控制程序将测试日期和时间等其他参数与测试地点的纬度、经度、湿度和温度存储在同一文件中。本文包括对四种不同的自然生长物种进行的初步研究(设备的控制程序将测试日期和时间等其他参数与测试地点的纬度、经度、湿度和温度存储在同一文件中。本文包括对四种不同的自然生长物种进行的初步研究(毛茛ACRIS钝secundatum吴氏雀稗,并刺子莞属mixta使用附近的农业部门在路易斯安那理工大学池塘发达ISTA)。将被调查植物连根拔起所需的不同力表明 SRBS 可以受到底土内根的类型和排列的刺激。获得的结果揭示了植物类型和土相特性(土壤容重、水分含量、空气含量和孔隙空间)以拉力和位移的形式对 SRBS 的强烈影响。因此,ISTA 具有测量、存储和分发实时数据的巨大潜力,可以帮助相关专业人士防止水土流失和确保可持续的沿海生态系统。

更新日期:2021-07-08
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