Root tensile strength of terrace hedgerow plants in the karst trough valleys of SW China: Relation with root morphology and fiber content

Chen, Yun; Han, Tao; Li, Tianyang; Yan, Zhehao; Liu, Xiaohong; Qiang, Jiaojiao

doi:10.1016/j.iswcr.2022.01.008

Cited by 13 publications

(7 citation statements)

References 45 publications

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“…The three Ficus species were found to have tree trunk diameters of more than 50 cm such as F. benjamina, F. callosa, and F. variegata with deep roots. The root system of Ficus can maintain the integrity of the slope so that it can act as erosion control (Vannoppen et al 2017;Chen et al 2022).…”

Section: Resortmentioning

confidence: 99%

Diversity and Distribution of <i>Ficus</i> (Moraceae) in The Karst Ecosystem of Bantimurung Bulusaraung National Park

Yelastri,

Sulistijorini,

Djuita

2023

J.Tropical Biodiversity Biotechnology

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Bantimurung Bulusaraung National Park is an area that has the largest karst ecosystem in Indonesia. Karst is prone to damage and difficult to reuse, so it requires conservation efforts. One of the plant species that can maintain this sustainability is Ficus which acts as key species in karst ecosystems. However, at this time the species is experiencing disturbances, one of which is due to the experience of invasive plants that can threaten the existence of Ficus because the weeds can colonize habitats and are dominant which can change species diversity. This study aimed to analyze the diversity and distribution of Ficus, compare species composition, and analyze environmental factors that affect Ficus spp. in Pattunuang Resort and Bantimurung Resort. Vegetation analysis method with nesting plots placed by purposive sampling and supported with environmental and soil data measurements to determine the factors that indicate the habitat preference of Ficus. We found 18 plant species of Ficus spp. in total. At Resort Pattunuang we found 14 Ficus species with the highest abundance being Ficus sundaica (27.55%), while we recorded 15 Ficus species at Resort Bantimurung with the highest abundance being Ficus ampelas (29.23%). Ficus species were uniformly distributed with a relatively high ratio of species composition in both resorts. Principal Component Analysis (PCA) showed that the presence of Ficus in Pattunuang Resort is influenced by wind speed, soil temperature, air temperature, soil moisture, soil pH, and air humidity. In Bantimurung Resort, the existence of Ficus is influenced by wind speed, soil temperature, soil moisture, and air humidity.

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Section: Resortmentioning

confidence: 99%

Diversity and Distribution of <i>Ficus</i> (Moraceae) in The Karst Ecosystem of Bantimurung Bulusaraung National Park

Yelastri,

Sulistijorini,

Djuita

2023

J.Tropical Biodiversity Biotechnology

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“…Plants with more branches in the root system have better soil reinforcement abilities when resisting external forces 8 . Additionally, chemical components such as cellulose and lignin affect tensile strength 9 , 10 . On the other hand, the external environment is essential in determining the tensile properties of the root system.…”

Section: Introductionmentioning

confidence: 99%

Cyclic loading changes the taproot's tensile properties and reinforces the soil via the shrub's taproot in semi-arid areas, China

Hu,

Zhang,

Yan

et al. 2024

Sci Rep

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This study aimed to reveal the soil reinforcement by shrub root systems after repeated stress from external forces, such as high winds and runoff, for extended periods in the wind-hydraulic compound erosion zone. Using the widely distributed Shandong mine area soil and water-conserving plant species, Caragana microphylla, Hippophae rhamnoides, and Artemisia ordosica, cyclic loading tests were conducted on taproots of the three plant species (1–5 mm diameter) via a TY8000 servo-type machine to investigate the taproots’ tensile properties response to repeated loading–unloading using simulated high wind pulling and runoff scouring. Our study revealed that the tensile force was positively correlated with the root diameter but the tensile strength was negatively correlated under monotonic and cyclic loading of the three plants’ taproots. However, after cyclic loading, the three plant species' taproots significantly enhanced the tensile force and strength more than monotonic loading (P < 0.05). The taproot force–displacement hysteresis curves of the three plant species revealed obvious cyclic characteristics. Structural equation modeling analysis revealed that root diameter and damage method directly affected the taproots' survival rate, reflecting their sustainable soil reinforcement capacity. The damage method significantly influenced the soil reinforcement more than the root diameter. Our findings reveal that the plant species' taproots can adapt more to the external environment and enhance their resistance to erosion after natural low perimeter erosion damage, effectively inducing soil reinforcement. Particularly, the taproots of Caragana microphylla have superior soil-fixing ability and can be used for ecological restoration.

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“…This may reduce the net repulsive forces in soil particles, thereby enhancing the integrity of the aggregates [27,28]. Root diameters showed a negative power relationship with tensile strength, while showing a positive power relationship with the tensile force of herbs on the Loess Plateau [29,30]. However, the relationship between root traits and soil aggregate stability has shown inconsistent conclusions.…”

Section: Introductionmentioning

confidence: 99%

The Relationships between Root Traits and the Soil Erodibility of Farmland Shelterbelts in the Bashang Region of China

Liu,

Li,

Guo

et al. 2023

Forests

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Soil erodibility by wind is not only affected by the basic physical and chemical properties of the soil but also the functional traits of plant roots. However, the roles played by the morphological and architectural traits of plant roots on wind-based soil erodibility in the Bashang region of China are still unclear. Therefore, two typical tree shelterbelts and two shrub shelterbelts in the Bashang region were selected to assess and determine how the root traits affected soil erodibility, especially characteristics such as dry aggregate, soil organic matter, and shearing resistance. The results showed that the soil dry aggregates of the two shrubs (Lycium barbarum and Caragana korshinskii) had higher geometric mean diameters (0.40 ± 0.03 mm) and mean weight diameters (0.82 ± 0.08 mm) but a lower erodible fraction (81.81% ± 1.62%) compared to the two trees (Populus simonii and Ulmus pumila). The mean weight diameter (MWDd) and geometric mean diameter (GMDd) of dry soil aggregates were negatively correlated with the soil erodible fraction (EFd), but these parameters were positively correlated with shearing resistances. The specific root length (SRL) and surface area (SSA) of plant roots were positively correlated with the GMDd of the soils, though these two parameters negatively correlated with the soil erodible fraction. The root branching intensity (BI) was negatively correlated with the MWDd and GMDd of dry soil aggregates. The total carbon or nitrogen of the soil displayed significantly positive and negative correlations to the geometric mean diameters and erodible fractions of the soils, respectively. The findings showed that plant roots with higher SRLs, as well as lower root diameters and BIs, played positive key roles in soil stability. The same applied to soils with higher nitrogen, carbon, and water content. The results from this study suggest that L. barbarum is superior to the other three species based on root traits and wind erosion resistance. These findings provide critical information for selecting plants for the sustainable management of windbreak and sand fixation.

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Root tensile strength of terrace hedgerow plants in the karst trough valleys of SW China: Relation with root morphology and fiber content

Cited by 13 publications

References 45 publications

Diversity and Distribution of <i>Ficus</i> (Moraceae) in The Karst Ecosystem of Bantimurung Bulusaraung National Park

Diversity and Distribution of <i>Ficus</i> (Moraceae) in The Karst Ecosystem of Bantimurung Bulusaraung National Park

Cyclic loading changes the taproot's tensile properties and reinforces the soil via the shrub's taproot in semi-arid areas, China

The Relationships between Root Traits and the Soil Erodibility of Farmland Shelterbelts in the Bashang Region of China

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