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Relevant bibliographies by topics / Root Area Ratio (RAR)

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Journal articles

Academic literature on the topic 'Root Area Ratio (RAR)'

Author: Grafiati

Published: 10 March 2023

Last updated: 11 March 2023

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Journal articles on the topic "Root Area Ratio (RAR)"

1

Avani, Nazi, Habibah Lateh, and Ghassem Habibi Bibalani. "Root distribution of Acacia mangium Willd. and Macaranga tanarius L. of rainforest." Bangladesh Journal of Botany 43, no. 2 (2015): 141–45. http://dx.doi.org/10.3329/bjb.v43i2.21665.

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The number of roots and root area ratio (RAR) decreased with depth in Acacia mangium and Macaranga tanarius and the maximum value of RAR and root number were observed in the first layer of soil. This process was regular in Acacia mangium Willd., but the RAR value showed great variability in Macaranga tanarius L. as the RAR decreased with depth until the second layer (20 cm) and increased again. About 35% of all roots in A. mangium, and about 50% of all roots in M. tanarius are located in the first layer. About 87% of all roots were in the fine root diameter class (d < 2 mm) in M. tanarius s

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2

Moresi, Federico Valerio, Mauro Maesano, Giorgio Matteucci, Manuela Romagnoli, Roy C. Sidle, and Giuseppe Scarascia Mugnozza. "Root Biomechanical Traits in a Montane Mediterranean Forest Watershed: Variations with Species Diversity and Soil Depth." Forests 10, no. 4 (2019): 341. http://dx.doi.org/10.3390/f10040341.

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Plant roots play a key role in stabilizing slopes, particularly in the Mediterranean region, characterized by rough and unstable terrain. However, forest species differ in their stabilizing capacities. The purpose of this study is to fill the gap of knowledge on root biomechanical properties of relevant Mediterranean trees and shrubs in relation to slope stability. Root specimens of typical montane Mediterranean tree and shrub species were sampled in Southern Italy. Root characteristics, such as tensile strength (Tr) and root area ratio (RAR), were assessed from live roots sampled in trenches,

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3

Preti, F., and F. Giadrossich. "Root reinforcement and slope bioengineering stabilization by Spanish Broom (<i>Spartium junceum</i> L.)." Hydrology and Earth System Sciences Discussions 6, no. 3 (2009): 3993–4033. http://dx.doi.org/10.5194/hessd-6-3993-2009.

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Abstract. The present paper deals with the characteristics of the root system of Spanish Broom (Spartium junceum L.), a species that is worth taking into consideration for its capacity for adaptation and resistance to drought. In particular, the aims of the study were 1) to investigate the plant's bio-mechanical aspects and 2) to verify whether root reinforcement and the field rooting ability of stem cuttings enhance its potential for use in slope stabilization and soil bio-engineering techniques, particularly in Mediterranean areas. Single root specimens were sampled and tested for tensile st

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Preti, F., and F. Giadrossich. "Root reinforcement and slope bioengineering stabilization by Spanish Broom (<i>Spartium junceum</i> L.)." Hydrology and Earth System Sciences 13, no. 9 (2009): 1713–26. http://dx.doi.org/10.5194/hess-13-1713-2009.

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Abstract. The present paper deals with the root system's characteristics of Spanish Broom (Spartium junceum L.), a species whose capacity for adaptating and resisting to drought is worth investigating. In particular, the aims of the study were 1) to investigate the plant's bio-mechanical aspects and 2) to verify whether root reinforcement and the field rooting ability of stem cuttings enhance its potential for use in slope stabilization and soil bio-engineering techniques, particularly in the Mediterranean areas. Single root specimens were sampled and tested for tensile strength, obtaining cla

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5

Yang, Qing Chao, Zhe Hao, Sheng You Lei, et al. "Experimental Study on Shear Strength of Root Composite Tailing Soil Based on Interfacial Bonding." Geofluids 2022 (September 5, 2022): 1–12. http://dx.doi.org/10.1155/2022/3749343.

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At present, the root soil interface bonding is not considered in the root system of mechanical soil-fixing model. The typical restoration plant Amorpha fruticosa, utilizing the widely used Wu model (WWM), the tensile and tensile properties of single root, and the shear strength properties of root soil composite tailing, is analyzed by the tensile tests of plant roots, pullout tests, and shear tests based on the effect of interfacial bond strength; based on the failure mode of root system in root soil, the modified WWM model is used to calculate the increment of shear strength of composite tail

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6

Mehtab, Alam, Yuan-Jun Jiang, Li-Jun Su, Sadiq Shamsher, Jia-Jia Li, and Rahman Mahfuzur. "Scaling the Roots Mechanical Reinforcement in Plantation of Cunninghamia R. Br in Southwest China." Forests 12, no. 1 (2020): 33. http://dx.doi.org/10.3390/f12010033.

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The degree of mechanical reinforcement provided by plants depends upon its roots distribution in the soil and mechanical properties of the roots. The mechanical properties and distribution of root traits (root diameter and number) in the soil of the standing forest depends on the tree stem diameter. This variation of root traits with tree stem diameter is rarely investigated. Therefore, this research presents the effect of tree stem diameter on the distribution of roots within the standing forest of Cunninghamia in the Longchi forest area, Sichuan province, China. In this area, shallow landsli

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7

Gasser, Eric, Paolo Perona, Luuk Dorren, Chris Phillips, Johannes Hübl, and Massimiliano Schwarz. "A New Framework to Model Hydraulic Bank Erosion Considering the Effects of Roots." Water 12, no. 3 (2020): 893. http://dx.doi.org/10.3390/w12030893.

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Floods and subsequent bank erosion are recurring hazards that pose threats to people and can cause damage to buildings and infrastructure. While numerous approaches exist on modeling bank erosion, very few consider the stabilizing effects of vegetation (i.e., roots) for hydraulic bank erosion at catchment scale. Taking root reinforcement into account enables the assessment of the efficiency of vegetation to decrease hydraulic bank erosion rates and thus improve risk management strategies along forested channels. A new framework (BankforNET) was developed to model hydraulic bank erosion that co

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8

Wang, Xuan, Zhenyu Li, Yongjun Chen, and Yongsheng Yao. "Influence of Vetiver Root Morphology on Soil–Water Characteristics of Plant-Covered Slope Soil in South Central China." Sustainability 15, no. 2 (2023): 1365. http://dx.doi.org/10.3390/su15021365.

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The soil–water characteristic curve is an important tool to evaluate the water-holding capacity of unsaturated soil. Plant roots can affect the matric suction of soil and the water-holding capacity and permeability of the soil. Therefore, the morphological characteristics of plant roots will lead to the difference in soil–water characteristics between soil slope and plant-covered slope. This study aims to investigate the effect of Vetiver root morphology on soil–water characteristic curves of plant-covered slope soil. The hydrological effect of the root distribution on the root–soil system was

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9

Nhu, Viet-Ha, Ataollah Shirzadi, Himan Shahabi, et al. "Shallow Landslide Susceptibility Mapping by Random Forest Base Classifier and Its Ensembles in a Semi-Arid Region of Iran." Forests 11, no. 4 (2020): 421. http://dx.doi.org/10.3390/f11040421.

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We generated high-quality shallow landslide susceptibility maps for Bijar County, Kurdistan Province, Iran, using Random Forest (RAF), an ensemble computational intelligence method and three meta classifiers—Bagging (BA, BA-RAF), Random Subspace (RS, RS-RAF), and Rotation Forest (RF, RF-RAF). Modeling and validation were done on 111 shallow landslide locations using 20 conditioning factors tested by the Information Gain Ratio (IGR) technique. We assessed model performance with statistically based indexes, including sensitivity, specificity, accuracy, kappa, root mean square error (RMSE), and a

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10

Nasamsir, Nasamsir. "RESPON PERTUMBUHAN BIBIT KELAPA SAWIT (Elaeis guineensis Jacq.) TERHADAP APLIKASI PUPUK N-P-K (12-0,6-6)." Jurnal Media Pertanian 1, no. 1 (2016): 11. http://dx.doi.org/10.33087/jagro.v1i1.11.

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AbstractThis research aims to know the oil palm seedling growth response in the main nursery toward N-P-K (12-0,6-6) fertilizer with the trademark Vedagro with different doses. The research was carried out in the Paal Merah Lama village, Southern Jambi sub district, started from 16 September until 16 Desember 2015. The research design used was Completely Randomized Design, with fertilizer dose of Vedagro as a treatment which consists of 6 levels, namely: d0 (control), d1 (5 g polybag-1), d2 (10 g polybag-1), d3 (15 g polybag-1), d4 (20 g polybag-1) and d5 (25 g polybag-1), using 4 replicates.

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