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Short-term effects of post-fire mulching with straw or wood chips on soil properties of semi-arid forests

Journal of Forestry Research 2023年第6期34卷 1777-1790页

作者： Manuel Esteban Lucas Borja Demetrio Antonio Zema Department of Agroforestry Technology Science and GeneticsSchool of Advanced Agricultural and Forestry EngineeringCampus Universitario s/nCastilla La Mancha UniversityE-02071 Castilla La ManchaAlbaceteSpain Department AGRARIA “Mediterranea”University of Reggio CalabriaLocalitàFeo di VitoI-89122 Reggio CalabriaItaly

Few studies have compared the variability of soil properties using different types of mulches in semi-arid *** study evaluated the changes in physico-chemical soil properties in a semi-arid forest of Central Eastern Spain,where straw and pine wood chips were distributed as mulch three months after a *** were sampled under burned and unmulched and burned and mulched plots three and nine months after the *** data was processed using Principal Component Analysis(PCA)and Analytical Hierarchical Cluster Analysis(AHCA).Mulching with straw or wood chips did not have any significant effects on the texture and chemical properties of burned sites few months after the *** contrast,significant changes are expected over time in organic matter,nutrients and many *** were no significant differences in soil properties between the two *** low changes were confirmed by PCA coupled with AHCA,which did not show a clear distinction among the three soil ***,a noticeable and significant variability of many of these properties over time was *** study shows that mulching does not degrade of soil properties in the short-term after a wildfire and after post-fire treatments,and thus helps protect semi-arid forest ecosystems against the negative impacts of high-severity fires.

关键词： Post-fire management High-severity fire Aridisols Erosion vegetal residues incorporation Soil degradation

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