Abstract
It is shown that the use of electrophysical methods and GIS technologies allows revealing soil coverage structure and spatial distribution of individual biological indicators, in particular, greenhouse gases production, in drained histosols (eutrophic peat soils) located in complex landscape and hydrological conditions of the Yakhroma Valley in the Moscow Region. The combination of GIS technologies and soil electrophysics made it possible to bring together the various aspects of the soil composition and functioning. Consequently, it generates easily readable “image” of soil in a given place and at certain times. The used approach is based on the idea that the electrical resistance of soils, associated with the density of mobile charges (cations and anions of soil absorbing complex and solution), is formed under the influence of soil-forming processes and it is an integral indicator of a wide range of soil properties. Taking into account that the evolution and degradation of peatlands after their drainage is a microbiological process primarily, we paid special attention to the research in this area. The experience has been obtained in the mapping of the microbial formation of CO 2 , N 2 O and CH 4 in peat soils. On the one hand, it allows estimating the current intensity of organic matter decomposition and losses of nitrogen and carbon by peat soils of different botanical composition, terms and methods of meliorations, and on the other hand, to determine the contribution of these soils to the greenhouse effect. It was established that the electrical resistance of the soil, basal, substrate-induced respiration and denitrification activity (specific form of anaerobic respiration) depend on the same set of soil properties and correlate with each other within the studied area. The high speed and productivity of electrophysical methods allow them to be used for primary soil diagnostics, selection of key points for further research, detailing the cartographic contours and refining the calculations of greenhouse gas fluxes from large areas.
Highlights
Картирование удельного электрического сопротивления внедряется в практику точного земледелия многих стран, где для разных почв и сельскохозяйственных культур этот метод используется для выделения территорий с одинаковой продуктивностью, либо требующих схожих способов обработки (Lund, 1999; Anderson-Cook, 2002; Corwin, 2003, 2008; Lueck, 2013; Doolittle, 2014; Stadler, 2015; Medeiros, 2016; Singh, 2016)
It is shown that the use of electrophysical methods
The used approach is based on the idea that the electrical resistance
Summary
Картирование удельного электрического сопротивления внедряется в практику точного земледелия многих стран, где для разных почв и сельскохозяйственных культур этот метод используется для выделения территорий с одинаковой продуктивностью, либо требующих схожих способов обработки (Lund, 1999; Anderson-Cook, 2002; Corwin, 2003, 2008; Lueck, 2013; Doolittle, 2014; Stadler, 2015; Medeiros, 2016; Singh, 2016). Результатом этого стало понимание, что использовать электрическое сопротивление следует не для опосредованного определения тех или иных параметров почвы, а прежде всего – для выявления внутренне однородных почвенных объектов, которые впоследствии могут быть подробно исследованы традиционными методами почвоведения.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
