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Forest fire types, soil moisture extremes, and aspects and their interactions significantly affect soil CO2 effluxes in post-fire black pine forests  
Yazarlar (3)
Prof. Dr. Renato Sabanal PACALDO Prof. Dr. Renato Sabanal PACALDO
Kastamonu Üniversitesi, Türkiye
Miraç Aydın
Kastamonu Üniversitesi, Türkiye
Randell Keith Amarille
Kastamonu Üniversitesi, Türkiye
Devamını Göster
Özet
Alleviating soil CO2 pollution after forest fires is challenging, especially for large tracts of post-fire forest land. Thus, a granular management approach prioritizing CO2 hotspot areas must be accounted for in CO2 pollution management and the efficient implementation of post-fire forest rehabilitation programs. However, identifying precisely CO2 hotspot areas requires understanding the effects of multiple factors on soil CO2 fluxes because the interaction among multiple variables magnifies the effects of forest fires. This study addresses a critical question of how fire types (crown and surface fires), aspects (north- and south-facing slopes), and soil moisture extremes (extremely wet and dry soils) affect soil CO2 effluxes (FCO2). We simultaneously measured FCO2, soil, and air temperatures, as well as soil moisture, in post-fire black pine (Pinus nigra Arnold) forests using an automated soil respiration system (LI-8100 A). The analysis revealed significant effects of the aforementioned factors and their interaction on FCO2 (p < 0.05), with the highest emissions (2.55 μmol s−1 m−2) occurring at the water-saturated surface fire on the south-facing slope, suggesting that CO2 pollution management efforts should prioritize this location. Although the water-drought crown fire areas at the south-facing slope generate the significantly lowest FCO2 (1.21 μmol s−1 m−2), offsetting CO2 emissions during wet periods, this site should be given priority in rehabilitation efforts to accelerate recovery. The FCO2 correlates positively with temperatures but negatively with soil moisture. Our findings highlight the importance of accounting for multiple factors in quantifying the FCO2 and identifying CO2 pollution hotspots in post-fire forest ecosystems.
Anahtar Kelimeler
Air temperature | Climate change | Pinus nigra | Postfire | Soil moisture | Soil respiration | Soil temperature
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı Atmospheric Pollution Research
Dergi ISSN 1309-1042 Wos Dergi Scopus Dergi
Dergi Grubu Q2
Makale Dili İngilizce
Basım Tarihi 01-2025
Sayı 1
Doi Numarası 10.1016/j.apr.2025.102819