Effects of prescribed fire on heaath in soil properties
AbstractThe edaphic factors have been evaluated in a sloping segment of 2,68 ha of the «Tuña» woodland municipality of Tineo, affected for descending controlled burns of Erica and Ulex with a yield of 1,5 ha h-1. The soil alterations, immediately after the controlled burns and to the 7, 30 and 90 day, took place to 0-2, 2-5 and 5-10 cm of depth, showing the existence of a temporary increment of the soil fertility (increase of C, N, K, Ca, Mg and specially of available P). Immediately after the fire, clay fraction diminished and sand it increased and vice versa to the 7, 30 and 90 days of the controlled burns. The increase of soil fertility after the fire it could be taken advantage for the quick establishment of a vegetal cover due to the regrowth of the burned vegetation.
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