Biogeochemical processes and geotechnical applications: progress, opportunities and challenges

DeJong, Jason T.; Soga, Kenichi; Kavazanjian, Edward; Burns, Susan E.; Paassen, Leon A. van; Qabany, Ahmed Al; Aydilek, Ahmet H.; Bang, S.; Burbank, Malcolm; Caslake, Laurie F.; CHEN, C. Y.; Cheng, Xiaohui; Chu, Jian; Ciurli, Stefano; Esnault-Filet, Annette; Fauriel, Suzanne; Hamdan, Nasser; Hata, Toshiro; Inagaki, Yukiko; Jefferis, Stephan A.; Kuo, Matthew; Laloui, Lyesse; LARRAHONDO, J.; Manning, David; Martinez, Brian; Montoya, Brina M.; Nelson, Douglas C.; Palomino, Angelica M.; Renforth, Phil; Santamarina, J. Carlos; Seagren, Eric A.; Tanyu, Burak F.; Tsesarsky, Michael; Weaver, Thomas J.

doi:10.1680/bcmpge.60531.014

Cited by 117 publications

(111 citation statements)

References 100 publications

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“…The saturation C sink capacity may also change with the change in atmospheric concentration of CO 2 because it can enhance SOC turnover and potentially limit long‐term C sequestration in ecosystems depending on the plant community composition (Hofmockel, Zak, Moran, & Jastrow, ). An enhanced understanding of biochemical processes of SOC sequestration and of soil erosion control through pedo‐technical applications can create additional opportunities of C sequestration (Dejong et al., ). Pedo‐technical applications for SOC sequestration may include reverting agriculturally marginal lands to natural vegetation or replanting of a perennial vegetation (Post & Kwon, ), but the rate of SOC sequestration may be low and limited by other factors (e.g., availability of N, water).…”

Section: Processes and Factors Affecting Soil Organic Carbon Sequestrmentioning

confidence: 99%

Digging deeper: A holistic perspective of factors affecting soil organic carbon sequestration in agroecosystems

Lal

2018

Global Change Biology

516

239

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The global magnitude (Pg) of soil organic carbon (SOC) is 677 to 0.3-m, 993 to 0.5-m, and 1,505 to 1-m depth. Thus, ~55% of SOC to 1-m lies below 0.3-m depth. Soils of agroecosystems are depleted of their SOC stock and have a low use efficiency of inputs of agronomic yield. This review is a collation and synthesis of articles published in peer-reviewed journals. The rates of SOC sequestration are scaled up to the global level by linear extrapolation. Soil C sink capacity depends on depth, clay content and mineralogy, plant available water holding capacity, nutrient reserves, landscape position, and the antecedent SOC stock. Estimates of the historic depletion of SOC in world soils, 115-154 (average of 135) Pg C and equivalent to the technical potential or the maximum soil C sink capacity, need to be improved. A positive soil C budget is created by increasing the input of biomass-C to exceed the SOC losses by erosion and mineralization. The global hotspots of SOC sequestration, soils which are farther from C saturation, include eroded, degraded, desertified, and depleted soils. Ecosystems where SOC sequestration is feasible include 4,900 Mha of agricultural land including 332 Mha equipped for irrigation, 400 Mha of urban lands, and ~2,000 Mha of degraded lands. The rate of SOC sequestration (Mg C ha year ) is 0.25-1.0 in croplands, 0.10-0.175 in pastures, 0.5-1.0 in permanent crops and urban lands, 0.3-0.7 in salt-affected and chemically degraded soils, 0.2-0.5 in physically degraded and prone to water erosion, and 0.05-0.2 for those susceptible to wind erosion. Global technical potential of SOC sequestration is 1.45-3.44 Pg C/year (2.45 Pg C/year).

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Section: Processes and Factors Affecting Soil Organic Carbon Sequestrmentioning

confidence: 99%

Digging deeper: A holistic perspective of factors affecting soil organic carbon sequestration in agroecosystems

Lal

2018

Global Change Biology

516

239

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“…supporting foundations and restoration of limestone buildings; DeJong et al . , ; Dhami, Reddy and Mukherjee ).…”

Section: Microbially Mediated Processes and Applicationsmentioning

confidence: 98%

Induced polarization applied to biogeophysics: recent advances and future prospects

Kessouri

Furman

Huisman

et al. 2019

Near Surface Geophysics

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This paper provides an update on the fast‐evolving field of the induced polarization method applied to biogeophysics. It emphasizes recent advances in the understanding of the induced polarization signals stemming from biological materials and their activity, points out new developments and applications, and identifies existing knowledge gaps. The focus of this review is on the application of induced polarization to study living organisms: soil microorganisms and plants (both roots and stems). We first discuss observed links between the induced polarization signal and microbial cell structure, activity and biofilm formation. We provide an up‐to‐date conceptual model of the electrical behaviour of the microbial cells and biofilms under the influence of an external electrical field. We also review the latest biogeophysical studies, including work on hydrocarbon biodegradation, contaminant sequestration, soil strengthening and peatland characterization. We then elaborate on the induced polarization signature of the plant‐root zone, relying on a conceptual model for the generation of biogeophysical signals from a plant‐root cell. First laboratory experiments show that single roots and root system are highly polarizable. They also present encouraging results for imaging root systems embedded in a medium, and gaining information on the mass density distribution, the structure or the physiological characteristics of root systems. In addition, we highlight the application of induced polarization to characterize wood and tree structures through tomography of the stem. Finally, we discuss up‐ and down‐scaling between laboratory and field studies, as well as joint interpretation of induced polarization and other environmental data. We emphasize the need for intermediate‐scale studies and the benefits of using induced polarization as a time‐lapse monitoring method. We conclude with the promising integration of induced polarization in interdisciplinary mechanistic models to better understand and quantify subsurface biogeochemical processes.

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“…Over the past 15 years, MICP has been tested for its potential as an innovative soil improvement technique for different purposes. While most of these tests were under laboratory conditions, the MICP technique has been proved to be suitable for use in applications such as strengthening loose sand, liquefaction control in saturated fine sand and fugitive dust control in desert areas (Dejong et al., ). A few field trials of these applications were also reported.…”

Section: Multi‐functionalitymentioning

confidence: 99%

Bio‐mediated soil improvement: The way forward

Jiang

Tang

Hata

et al. 2020

Soil Use and Management

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Bio‐mediated soil improvement involves the usage of microbes to improve soil engineering performance through a series of bio‐geochemical processes. In particular, Microbially Induced Calcite Precipitation (MICP), a ubiquitous bio‐geochemical process that occurs in soil and results in permanent inorganic cementation between soil grains, has received the greatest research focus. While substantial progress has been made to develop MICP as a mainstream soil improvement technique, we still need to: (a) improve our understanding of the fundamental microbial, chemical and flow processes involved; (b) achieve multi‐functionality by coupling engineering performance enhancement with ecological, environmental and carbon footprint benefits; and (c) maintain ecological balance and environmental friendliness, avoid long‐term deterioration and lower the energy demand.

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Biogeochemical processes and geotechnical applications: progress, opportunities and challenges

Cited by 117 publications

References 100 publications

Digging deeper: A holistic perspective of factors affecting soil organic carbon sequestration in agroecosystems

Digging deeper: A holistic perspective of factors affecting soil organic carbon sequestration in agroecosystems

Induced polarization applied to biogeophysics: recent advances and future prospects

Bio‐mediated soil improvement: The way forward

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