The texture, structure and nutrient availability of artificial soil on cut slopes restored with OSSS – Influence of restoration time

Huang, Zhiyu; Jiao, Chen; Ai, Xiaoyan; Li, Ruirui; Ai, Yingwei; Li, Wei

doi:10.1016/j.jenvman.2017.05.043

Cited by 46 publications

(33 citation statements)

References 51 publications

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“…With the rapid growth of the economy in China, major infrastructure projects, such as roads and railways, have been developing faster than ever before. However, these constructions have created abundant bare rock slopes that have had a profound impact on local natural ecosystems 1 ; for example, the removal of natural soil and underlying materials 2 , the alteration of landscape patterns 3 , the destruction and degradation of vegetation and biodiversity 4 , 5 , and the increase in the occurrence of soil erosion and landslides 6 . To restore rock-cut slopes, control surface erosion, and improve landscape aesthetics, researchers have conducted several attempts involving hydraulic covering, geotextile covering, external-soil spray seeding (ESSS), and vegetation concrete foundation spraying 2 , 7 – 9 .…”

Section: Introductionmentioning

confidence: 99%

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Topographic aspect affects the vegetation restoration and artificial soil quality of rock-cut slopes restored by external-soil spray seeding

Zhang

Yang

et al. 2018

Sci Rep

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External-soil spray seeding (ESSS), a technique of spraying artificial soil materials onto bare slopes for vegetation cover construction, has been widely used to restore rock-cut slopes. However, studies on the effect of the practical application of this technique on different topographic aspects have been rarely performed. In this study, two topographic aspects, namely, north-facing versus south-facing, were investigated under two railway lines, and two local natural slopes (north-facing versus south-facing) were selected as references. Vegetation and soil conditions, which are paramount aspects of ecological restoration assessment, were characterized in terms of the richness and diversity indices, vegetation canopy cover, basic soil physico-chemical properties, and structural characteristics of these slopes. Results showed that (1) the topographic aspect significantly affected the vegetation restoration and artificial soil quality of rock-cut slopes restored by ESSS; (2) the ecological restoration effect of north-facing slopes were better than that of south-facing slopes; and (3) the vegetation and soil conditions of natural slopes were better than those of rock-cut slopes. Therefore, additional scientific management measures should be implemented to promote the ecological restoration of rock-cut slopes, especially for south-facing slopes.

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Section: Introductionmentioning

confidence: 99%

“…Huang et al . (2017) recommended the assessment of artificial soil quality by considering soil texture, and soil structure 2 . Soil texture and soil structure remarkable affect many soil properties, including water retention, aeration, compaction, porosity, hydraulic conductivity, and nutrient availability 31 .…”

Section: Introductionmentioning

confidence: 99%

Topographic aspect affects the vegetation restoration and artificial soil quality of rock-cut slopes restored by external-soil spray seeding

Zhang

Yang

et al. 2018

Sci Rep

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“…Therefore, flexible protection methods -such as the use of plant roots to stop weathering and spalling -have been applied more frequently for slope stabilization. Different technologies have been used in green reconstruction of rock slopes, including thick layer base slope green technology [15], concrete biotechnical stabilization of slopes [16][17], and planting grass by spraying seeds [18][19]. These technologies implement companion planting, which not only stabilizes the slopes but also restores ecological balance.…”

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confidence: 99%

Effects of Substrate Material on Plant Growth and Nutrient Loss

Sun

Wang

et al. 2018

Pol. J. Environ. Stud.

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The number of road engineering and construction projects that create rock slopes has been increasing year by year, instigating a series of geologic hazards and ecosystem destruction such as landslides, mudflows, and so on. The ecosystems are thus in an urgent need for recovery and reconstruction. However, ecological restoration processes of rock slopes are more challenging compared to those of clay slopes because rock slopes are highly heterogeneous and do not provide favorable soil conditions for plant growth, especially due to the lack of nutrient accumulation and lower heat and moisture capacity [1]. Thus, rock slopes present complex and varied ecosystems that do not support plant growth.Pol. J. Environ. Stud. Vol. 27, No. 6 (2018), 2821-2832 AbstractWe investigated substrate material and the effects of different fertilizers and water levels as variable factors for slope restoration. A field rainfall monitoring experiment was carried out to explore morphological changes in Amorpha fruticosa L., the water-holding capacity of its leaves under different water and nutrient gradients, and the nutrient losses from the substrate. The results showed that nutrient loss by runoff was significantly affected by fertilizer use and they increased with the increased application of fertilizers. The concentration of nitrogen in runoff was insignificant, the concentration of phosphorus was increased, and the runoff concentration of potassium was decreased after increasing water-retaining agent levels in the substrate. The concentration of nutrients in runoff from rainfall generally followed a trend of slight fluctuations, then a rise, and finally a decrease. The addition of F2 fertilizer produced the lowest nitrogen losses from substrate material and reduced the leaf area where the addition of phosphate fertilizer had a significant effect on crown diameter. At greater content of the water-retaining agent, the water in substrate material increased, resulting in increased water absorption by the plants and increased relative water content of leaves. Ultimately, W3F4 was the most favorable combination of water-retaining agent and fertilizer concentration for plant growth, which may be related to runoff losses. This combination provides optimal conditions under which the plant can maintain a perfect balance of nutrients and thus improve plant growth indices.

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“…Soil organic matter is associated with primary mineral particles (i.e., sand, silt, and clay) in many soil types (Huang et al 2017). Many studies have found that fine particles, especially clay and silt, have high absorption capacity for soil organic carbon (Ye et al 2019, Zhang et al 2019b).…”

Section: Relationship Between Soil Properties and Leaf Nutrientsmentioning

confidence: 99%

Effects of ecological restoration on soil properties of the aeolian sandy land around Lhasa, southern Tibetan Plateau

Liao

et al. 2020

Ecosphere

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2020. Effects of ecological restoration on soil properties of the aeolian sandy land around Lhasa, southern Tibetan Plateau. Ecosphere 11(1):e03009.Abstract. The ecological restoration of aeolian sandy land has not only improved the function of ecosystem services, such as wind prevention and sand fixation, but has also indirectly reduced the regional economic losses caused by sandstorms. However, the interaction between vegetation and soil properties after natural and artificial restoration of the sandy land in southern Tibetan Plateau has not been sufficiently studied. In the present study, we selected four vegetation types, including artificial forest (A), revegetated shrub (B), natural shrub (C), and natural grassland (D), in the sandy land in the middle reaches of the Yarlung Zangbo River basin, Tibet, China, and investigated the changes in soil particle size and nutrients at depths of 0-20 cm and 20-40 cm, finally examining the potential relationships between soil properties and leaf nutrients. Our results indicated that in the topsoil (0-20 cm), the natural shrub (C) and natural grassland (D) have greater silt content, recorded as 50.77% and 62.16%, respectively, compared to the artificial forest (A) and revegetated shrub (B). Natural grassland (D) had the highest silt content and the lowest soil bulk density (SBD) among the four vegetation types. There was no significant difference in the soil organic matter (SOM) in the topsoil of the different vegetation types. However, at the depth of 20-40 cm, the SOM content of the different vegetation types was in the following order: natural grassland (D) (23.37 g/ kg) > natural shrub (C) (17.42 g/kg) > revegetated shrub (B) (14.85 g/kg) > artificial forest (A) (8.43 g/kg). The ammonium nitrogen content in the revegetated shrub (B) was higher compared to the other vegetation types. The SOM content was significantly correlated with the total phosphorus (TP) and available phosphorus (AP) of the sandy land. The leaf total carbon, nitrogen, and phosphorus exhibited a positive correlation with SBD, AP, and available potassium. These findings can provide useful information to optimize the patterns of natural and artificial restoration for controlling desertification in similar eco-regions.

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The texture, structure and nutrient availability of artificial soil on cut slopes restored with OSSS – Influence of restoration time

Cited by 46 publications

References 51 publications

Topographic aspect affects the vegetation restoration and artificial soil quality of rock-cut slopes restored by external-soil spray seeding

Topographic aspect affects the vegetation restoration and artificial soil quality of rock-cut slopes restored by external-soil spray seeding

Effects of Substrate Material on Plant Growth and Nutrient Loss

Effects of ecological restoration on soil properties of the aeolian sandy land around Lhasa, southern Tibetan Plateau

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