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      Photoacoustic and photothermal methods in spectroscopy and characterization of soils and soil organic matter

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          Abstract

          Review sums up the application of photoacoustic and photothermal spectroscopies for the analysis and characterization of soils and soil organic matter and discusses the outlooks in this area.

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          Climate-smart soils.

          Soils are integral to the function of all terrestrial ecosystems and to food and fibre production. An overlooked aspect of soils is their potential to mitigate greenhouse gas emissions. Although proven practices exist, the implementation of soil-based greenhouse gas mitigation activities are at an early stage and accurately quantifying emissions and reductions remains a substantial challenge. Emerging research and information technology developments provide the potential for a broader inclusion of soils in greenhouse gas policies. Here we highlight 'state of the art' soil greenhouse gas research, summarize mitigation practices and potentials, identify gaps in data and understanding and suggest ways to close such gaps through new research, technology and collaboration.
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            Visible, near infrared, mid infrared or combined diffuse reflectance spectroscopy for simultaneous assessment of various soil properties

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              The global carbon cycle: a test of our knowledge of earth as a system.

              Motivated by the rapid increase in atmospheric CO2 due to human activities since the Industrial Revolution, several international scientific research programs have analyzed the role of individual components of the Earth system in the global carbon cycle. Our knowledge of the carbon cycle within the oceans, terrestrial ecosystems, and the atmosphere is sufficiently extensive to permit us to conclude that although natural processes can potentially slow the rate of increase in atmospheric CO2, there is no natural "savior" waiting to assimilate all the anthropogenically produced CO2 in the coming century. Our knowledge is insufficient to describe the interactions between the components of the Earth system and the relationship between the carbon cycle and other biogeochemical and climatological processes. Overcoming this limitation requires a systems approach.
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                Author and article information

                Contributors
                Journal
                Photoacoustics
                Photoacoustics
                Photoacoustics
                Elsevier
                2213-5979
                19 December 2019
                March 2020
                19 December 2019
                : 17
                : 100151
                Affiliations
                [a ]Department of Chemistry and Physical Chemistry of Soils, V.V. Dokuchaev Soil Science Institute, Pyzhevsky per., 7/2, Moscow 119017, Russia
                [b ]Chemistry Department, M.V. Lomonosov Moscow State University, Leninskie Gory, 1-3, GSP-1, Moscow, 119991, Russia
                Author notes
                [* ]Corresponding author. proskurnin@ 123456gmail.com
                Article
                S2213-5979(19)30074-6 100151
                10.1016/j.pacs.2019.100151
                6957834
                31956483
                46284a30-d204-4002-9bbd-55407824e551
                © 2019 The Author(s)

                This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

                History
                : 8 October 2019
                : 14 December 2019
                : 16 December 2019
                Categories
                VSI: ICPPP-20

                photoacoustic spectroscopy,optoacoustic spectroscopy,photothermal spectroscopy,probe microspectroscopy,soil,soil organic matter,dispersed organic matter

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