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Reconstruction of landscape structure of sewage fields from sugar industry and its dynamics as reasoning for sampling scheme of soils and soil carbon balance estimationsтезисы доклада Тезисы
- Авторы: Telnova Natalia, Zamotaev Igor, Karelin Dmitry, Dolgikh Andrey, Mikheev Pavel
- Сборник: Landscape Science and Landscape Ecology:Considering Responses to Global Challenges. 1 st International IALE-Russia online conference Moscow 14-18 September 2020 Book of Abstracts
- Тезисы
- Год издания: 2020
- Место издания: Lomonosov Moscow State University Moscow
- Первая страница: 16
- Последняя страница: 16
- Аннотация: The forest-steppe landscapes of the European Russia is a significant region of sugar beet cultivation and associated sugar production industry both historically and currently. The overwhelming majority of sugar factories located here still use the biological treatment of their wastewater on sewage fields, which are usually isolated from the industrial sites and occupied significant areas (1,5–3 sq. km) along local watersheds. Both abandoned and active sewage fields have rather distinctive and special landscape pattern but these systems are very poorly studied as a complex phenomenon in the structure of anthropogenic landscapes or as spatially and environmentally significant type of land use (the only most comprehensive study in this field belongs to Yu. G. Tyutyunnyk, 2016, 2019). For the two key areas of sewage fields in Kursk region – the one abandoned with the closing of the sugar factory in the late 1990s and the other still in use from the early 1950s we reconstructed the spatial and temporal heterogeneity of their contemporary landscape structure. This reconstruction was done by means of multi-temporal analysis of archive aerial and contemporary satellite and UAV imagery with high spatial resolution. The gaps in this prolonging image time series was completed by NDWI spectral index series (McFeeters, 1996) obtained from Landsat imagery. As a result, the small-scaled maps of reconstructed natural landscapes structure and contemporary one were compiled and chrono-functional zoning was elaborated for the territories of two sewage fields. Based on these findings we organized the scheme of general soil sampling and repeated survey of geochemical and microbiological soil conditions, as well as multi-seasonal estimates of CO2 efflux from soils. Results of these surveys have demonstrated that the each chrono-functional zone have a specific set of soil types and of current soil ecological conditions. Periodically watered lagoons of operating sewage fields is a powerful source of CO2 to the atmosphere while abandoned lagoons with successive trees and shrubs overgrowth are characterized with background level of soil CO2 efflux.
- Добавил в систему: Тельнова Наталья Олеговна