Moss biocrust accelerates the recovery and resilience of soil microbial communities in fire-affected semi-arid Mediterranean soils

0562727 - MBÚ 2023 RIV NL eng J - Článek v odborném periodiku
García-Carmona, M. - Lepinay, Clémentine - García-Orenes, F. - Baldrian, Petr - Arcenegui, V. - Cajthaml, Tomáš - Mataix-Solera, J.
Moss biocrust accelerates the recovery and resilience of soil microbial communities in fire-affected semi-arid Mediterranean soils.
Science of the Total Environment. Roč. 846, November 10 (2022), č. článku 157467. ISSN 0048-9697. E-ISSN 1879-1026
Institucionální podpora: RVO:61388971
Klíčová slova: Biocrust * Microbial community composition * Mosses * Postfire management * Wildfire
Obor OECD: Environmental sciences (social aspects to be 5.7)
Impakt faktor: 9.8, rok: 2022
Způsob publikování: Open access
https://www.sciencedirect.com/science/article/pii/S004896972204565X?via%3Dihub

After wildfires in Mediterranean ecosystems, ruderal mosses are pioneer species, stabilizing the soil surface previous to the establishment of vascular vegetation. However, little is known about the implication of pioneer moss biocrusts for the recovery and resilience of soils in early post-fire stages in semi-arid areas. Therefore, we studied the effects of the burgeoning biocrust on soil physicochemical and biochemical properties and the diversity and composition of micro-bial communities after a moderate-to-high wildfire severity. Seven months after the wildfire, the biocrust softened the strong impact of the fire in soils, affecting the diversity and composition of bacteria and fungi community compared to the uncrusted soils exposed to unfavourable environmental stress. Soil moisture, phosphorous, and enzyme activities representing the altered biogeochemical cycles after the fire, were the main explanatory variables for biocrust micro-bial community composition under the semi-arid conditions. High bacterial diversity was found in soils under mosses, while long-lasting legacies are expected in the fungal community, which showed greater sensitivity to the fire. The composition of bacterial and fungal communities at several taxonomical levels was profoundly altered by the presence of the moss biocrust, showing a rapid successional transition toward the unburned soil community. Pioneer moss biocrust play an important role improving the resilience of soil microbial communities. In the context of increasing fire intensity, studying the moss biocrust effects on the recovery of soils microbiome is essential to understanding the resistance and resilience of Mediterranean forests to wildfires.
Trvalý link: https://hdl.handle.net/11104/0335233