Soil Heating at High Temperatures and Different Water Content: Effects on the Soil Microorganisms
| Autor: | Ana Barreiro, Alba Lombao, Angela Martín, Javier Cancelo-González, Tarsy Carballas, Montserrat Díaz-Raviña |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Geosciences, Vol 10, Iss 9, p 355 (2020) |
| Druh dokumentu: | article |
| ISSN: | 10090355 2076-3263 |
| DOI: | 10.3390/geosciences10090355 |
| Popis: | Soil properties determining the thermal transmissivity, the heat duration and temperatures reached during soil heating are key factors driving the fire-induced changes in soil microbial communities. The aim of the present study is to analyze, under laboratory conditions, the impact of the thermal shock (infrared lamps reaching temperatures of 100 °C, 200 °C and 400 °C) and moisture level (0%, 25% and 50% per soil volume) on the microbial properties of three soil mixtures from different sites. The results demonstrated that the initial water content was a determinant factor in the response of the microbial communities to soil heating treatments. Measures of fire impact included intensity and severity (temperature, duration), using the degree-hours method. Heating temperatures produced varying thermal shock and impacts on biomass, bacterial activity and microbial community structure. |
| Databáze: | Directory of Open Access Journals |
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