Journal ArticleDOI
Soil–vegetation relationships in cerrados under different fire frequencies
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In this article, the authors compared soils under three different fire regimes and their relationship to the cerrado species they support, and found differences in soil characteristics, with fertility and fire frequency positively related.Abstract:
Fire is an important ecological factor that structures savannas, such as the cerrado, by selecting plant species and altering soil nutrient content. In Emas National Park, central Brazil, we compared soils under three different fire regimes and their relationship to the cerrado species they support. We collected 25 soil and vegetation samples at each site. We found differences in soil characteristics (p < 0.05), with fertility and fire frequency positively related: in the annually burned site we found higher values of organic matter, nitrogen, and clay, whereas in the protected site we detected lower values of pH and higher values of aluminum. We also observed differences in plant community structure, with distinct floristic compositions in each site. Floristic composition was more related to sand proportion (intra-set correlation = 0.834). Different fire frequencies increase environmental heterogeneity and beta diversity in the Brazilian cerrado.read more
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Journal ArticleDOI
Fire as a fundamental ecological process: research advances and frontiers
Kendra K. McLauchlan,Philip E. Higuera,Jessica R. Miesel,Brendan M. Rogers,Jennifer A. Schweitzer,Jacquelyn K. Shuman,Alan J. Tepley,J. Morgan Varner,Thomas T. Veblen,Solny A. Adalsteinsson,Jennifer K. Balch,Patrick J. Baker,Enric Batllori,Erica Bigio,Paulo M. Brando,Megan E. Cattau,Melissa L. Chipman,Janice L. Coen,Raelene M. Crandall,Lori D. Daniels,Neal J. Enright,Wendy S. Gross,Brian J. Harvey,Jeff A. Hatten,Sharon M. Hermann,Rebecca E. Hewitt,Leda N. Kobziar,Jennifer B. Landesmann,Michael M. Loranty,S. Yoshi Maezumi,Linda O. Mearns,Max A. Moritz,Jonathan Myers,Juli G. Pausas,Adam F. A. Pellegrini,William J. Platt,Jennifer Roozeboom,Hugh D. Safford,Fernanda Santos,Robert M. Scheller,Rosemary L. Sherriff,Kevin G. Smith,Melinda D. Smith,Adam C. Watts +43 more
TL;DR: In this paper, the diversity of ways in which fire operates as a fundamental ecological and evolutionary process on Earth is described, and the need to study fire across temporal scales, to assess the mechanisms underlying a variety of ecological feedbacks involving fire and to improve representation of fire in a range of modelling contexts.
Journal ArticleDOI
Savanna burning and the assessment of long-term fire experiments with particular reference to Zimbabwe
TL;DR: In this article, the impact of fire on vegetation is analysed and compared with further vegetation surveys conducted in 2007, showing that the plots burned at three and four-year intervals recovered to greater mean heights than the unburned control plots, suggesting that the few trees that did survive in frequently burned plots were large specimens.
Journal ArticleDOI
Spatial heterogeneity of soil properties and vegetation–soil relationships following vegetation restoration of mobile dunes in Horqin Sandy Land, Northern China
TL;DR: In this article, the effect of vegetation restoration on heterogeneity of soil properties in sand dunes and to provide a concept model to describe the relationship between vegetation succession and spatial heterogeneity variation of soil property in the dunes.
Journal ArticleDOI
Effect of fires on soil nutrient availability in an open savanna in Central Brazil
Vânia Regina Pivello,Imma Oliveras,Heloisa Sinatora Miranda,Mundayatan Haridasan,Margarete Naomi Sato,Sérgio Tadeu Meirelles +5 more
TL;DR: In this paper, the authors analyzed long-term effects of fire on surface soil of an open Brazilian savanna (campo sujo) in plots submitted to different fire regimes during 18 years.
Journal ArticleDOI
Wildfires, soil carbon balance and resilient organic matter in Mediterranean ecosystems. A review
TL;DR: In this article, a review of the effects of wildfires on Mediterranean soils was carried out with special emphasis on the biogeochemical processes involved in soil C sequestration, and modifications to the composition and properties of soil humic substances and related resilient C-forms in soil resulting from fires were also discussed.
References
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