Application of sodium alginate in induced biological soil crusts: enhancing the sand stabilization in the early stage

Peng, Chengrong; Zheng, Jiaoli; Huang, Shun; Li, Shuangshuang; Li, Dunhai; Cheng, Mingyu; Liu, Yongding

doi:10.1007/s10811-017-1061-2

Cited by 42 publications

(21 citation statements)

References 43 publications

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“…EPS may also occur in a variety of morphologies and configurations within the soil matrix, dependent on species and conditions (Rossi, Mugnai, & De Philippis, 2017 a abundance) and functional stabilization (surface roughness and aggregate stability) may be ameliorated with the use of stabilizers in the short term ( Figure 6). Other studies have found neutral to improved cyanobacterial growth when simultaneously inoculated with stabilizers (Chandler et al, 2018;Davidson et al, 2002;Park, Li, Jia, & Hur, 2014;Peng et al, 2017), and in plots sampled for this study, microbiotic chlorophyll was marginally greater in plots with both biocrust and stabilizer. More studies are needed to determine the mechanisms by which soil-stabilizing amendments may facilitate microbiotic growth, such as by anchoring inoculum (Ballesteros, Ayerbe, Casares, Cañadas, & Lorite, 2017), providing microsubstrate for improved growth (Zaady, Katra, Barkai, Knoll, & Sarig, 2016), or improving water status or nutritional conditions (Park et al, 2016).…”

Section: Biocrust Restoration and Erosion Processessupporting

confidence: 50%

“…The hydrological effects of both natural biocrusts and soil stabilizers have been studied extensively in the field Lee, Gantzer, Thompson, & Anderson, 2011;Tümsavas & Kara, 2011), although often independently. Studies combining biocrust inoculations with stabilizers such as sodium alginate (Peng et al, 2017), hydrogels, and tackifiers (Park, Li, Jia, & Hur, 2016) have found synergistic effects on soil stability and inoculant growth in the laboratory within the short-term durations of these experiments. Other amendments, such as NaCl or polyacrymalide, have had positive effects on soil stability with neutral effects on biocrust development (Chandler et al, 2018;Davidson, Bowker, George, Phillips, & Belnap, 2002).…”

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confidence: 99%

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Hydrological function of rapidly induced biocrusts

2019

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In dryland ecosystems, land degradation and erosion pose severe threats to ecosystem productivity and human well-being. Bio-inoculation of degraded soils with native biological soil crusts ("biocrusts") is a promising yet relatively untested means to improve soil stability and hydrological function (i.e., increase infiltration and reduce run-off). In a degraded semiarid grassland on the Colorado Plateau, we studied the establishment and hydrological function (via simulated rainfall) of induced biocrusts grown with and without an organic soil stabilizer (psyllium, derived from Plantago sp.), after a period of 4 months. We found evidence of biocrust establishment, including significantly higher biocrust cover, chlorophyll a, and exopolysaccharides in inoculated plots compared with controls. Plots inoculated with biocrust had higher run-off and sediment yields than controls during rainfall simulation. However, this effect was mitigated in plots where stabilizer was added, resulting in greater soil aggregate stability and higher levels of infiltration (reduced total run-off). The time to ponding was significantly greater than control for all inoculated plots, suggesting that induced biocrusts may be most effective at improving infiltration under low-intensity, smaller precipitation events.Notably, the biocrusts in this study lacked rough surface microtopography, which is common in well-developed biocrusts regionally and likely instrumental in slowing overland flow and increasing infiltration for larger rain events. These results highlight the temporal lag that may exist between apparent and functional restoration of biocrusts. In addition, the simultaneous additions of stabilizing amendments with biocrust inoculum may work collectively to achieve both short-and long-term restoration targets.

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Section: Biocrust Restoration and Erosion Processessupporting

confidence: 50%

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confidence: 99%

Hydrological function of rapidly induced biocrusts

2019

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“…Individual polymers can also be used as a soil protector. Peng et al 15 suggested the technology of biopolymer sodium alginate (SA) use for sand stabilization and rapid development of biological soil crust. It was shown that mechanical properties of soil crust significantly increase (about 10 times) in comparison with control soil samples.…”

Section: Introductionmentioning

confidence: 99%

“…Individual polymers can also be used as a soil protector. Peng et al 15 Recently, we have published the results reporting the use of IPECs based on biopolymeric pairs of Ch-SA, 17 and Ch-SC. 18 It was shown that these biopolymers can form IPECs and can be used as soil structuring agents.…”

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confidence: 99%

Soil structuring using interpolyelectrolyte complexes of water‐soluble polysaccharides

Klivenko

Orazzhanova

Мussabayeva

et al. 2020

Polymers for Advanced Techs

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Soil degradation is an important problem on a global scale. Suitable materials for its solution are interpolyelectrolyte complexes (IPEC) of biodegradable polymers. IPEC based on the oppositely charged pairs of biodegradable polymers-chitosan and sodium alginate (Ch-SA), chitosan and sodium carboxymethylcellulose (Ch-SC), and chitosan-gellan gum (Ch-GG) were prepared and studied using different physicochemical techniques (FTIR-spectroscopy, dynamic light scattering, conductometric and turbidimetric titration, and rheoviscometric measurements). Thin films of IPECs were prepared by pouring polymer solutions on a flat surface and subsequent evaporation of water. These films were tested using mechanical analysis. Young modulus of IPEC films increases in the following order: Ch-SC < Ch-GG < Ch-SA. Urban soil samples were sequentially treated with Ch solution and negatively charged polymer solution (SC, SA, GG). This technique of soil treatment leads to formation of IPEC within the soil surface layer. The soil structures and also soil treated with pure water and individual polymer solutions were also tested using mechanical analysis. It was found that the most durable structures are formed by IPEC based on Ch and SC. All the applied systems can be arranged in the following sequence in ascending order of the Young's modulus: GG < Ch < SA < Water < SC < Ch-GG < Ch-SA < Сh-SC. The IPEC based on biodegradable and biocompatible polymers of polysaccharide nature can be successfully used for soil structuring. These polymers significantly increase the mechanical strength of the soil without harmful effects to the environment. Among the studied systems, the Ch-SC system has the greatest structuring ability. These soil structuring agents can be applied for improving of the quality of urban and agricultural soils.

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“…This method combines the traditionally effective but short-lasting effects of amendments with longer-term stabilization by biocrusts. Previous studies combining biocrust and stabilizers have found that stabilizing compounds have had neutral (Chandler et al, 2018) to positive effects (Park et al, 2016;Peng et al, 2017;Chock et al, 2019) on biocrust organism development, while also providing short-term stability to soils. Stabilizers may serve to anchor inoculum, provide substrate for micro-organism growth, and reduce overall local fluxes of sand and debris (Lyles et al, 1974;Armbrust and Lyles, 1975;Park et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Induced biological soil crust controls on wind erodibility and dust (PM10) emissions

Fick

Barger

Tatarko³

et al. 2019

Earth Surf Processes Landf

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Inducing biological soil crust (biocrust) development is an appealing approach for dust mitigation in drylands due to the resistance biocrusts can provide against erosion. Using a portable device, we evaluated dust emissions from surfaces either inoculated with biocrust, amended with a plant-based soil stabilizer, or both at varying wind friction velocities. Four months after application, emissions from all treatments were either indistinguishable from or greater than controls, despite evidence of biocrust establishment. All treatments had greater surface roughness and showed more evidence of entrapment of windblown sediment than controls, factors which may have been partially responsible for elevated emissions. There was a synergistic effect of inoculation and stabilizer addition, resulting in a nearly twofold reduction in estimated emissions compared to either treatment alone. Stepwise regression analysis indicated that variables associated with surface crust strength (aggregate stability, penetration resistance) were negatively associated with emissions and variables associated with sediment supply (sand content, loose sediment cover) were positively associated with emissions. With more time to develop, the soil-trapping activity and surface integrity of biocrust inoculum and soil stabilizer mixtures is expected to increase with the accumulation of surface biomass and enhancement of roughness through freezethaw cycles.

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Application of sodium alginate in induced biological soil crusts: enhancing the sand stabilization in the early stage

Cited by 42 publications

References 43 publications

Hydrological function of rapidly induced biocrusts

Hydrological function of rapidly induced biocrusts

Soil structuring using interpolyelectrolyte complexes of water‐soluble polysaccharides

Induced biological soil crust controls on wind erodibility and dust (PM10) emissions

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