2026-06-01T10:18:37Zhttps://riuma.uma.es/rest/oai/request

oai:riuma.uma.es:10630/68492026-02-03T11:55:58Zcom_10630_2254col_10630_37959

00925njm 22002777a 4500 dc Martínez-Murillo, Juan Francisco author Hueso-González, Paloma author Aranda-Gómez, Francisco author Ruiz-Sinoga, José Damián author 2014-01-01 Some changes in chemical soil properties can be observed after fires of low intensities. pH and electric conductivity tend to increase, while C/N ratio decrease. In the case of organic matter, the content can increase due to the massive incorporation of necromass including, especially, plants and roots. The aim of this study is to assess the impact of low intensity and controlled fire in some soil properties in field conditions. El Pinarillo experimental area is located in south of Spain. Two set of closed plots were installed (24 m2: 12 m length x 2 m width). One of them was remained as control with the original vegetation cover (Mediterranean matorral: Rosmarinus officinalis, Cistus clusii, Lavandula stoechas, Chamaeropos humilis, Thymus baetica), and the other one was burnt in a controlled-fire in 2011. Weather conditions and water content of vegetation influenced in the intensity of fire (low). After the controlled-fire, soil surface sample (0-5 cm) were taken in both set of plots (B, burnt soil samples; C, control soil samples). Some soil chemical properties were analysed: organic matter content (OM), C/N ratio, pH and electrical conductivity (EC). Some changes were observed in B corroborating a controlled-fire of low intensity. pH remained equal after fire (B: pH=7.7 0.11; C: pH=7.7 0.04). An increment was obtained in the case of EC (B: EC=0.45 mScm-1 0.08 mScm-1; C: EC=0.35 mScm-1 0.07 mScm-1) and OM (B: OM=8.7% 3.8%; C: pH=7.3% 1.5%). Finally, C/N ratio decreased after fire respect to the control and initial conditions (B: C/N=39.0 14.6; C: C/N =46.5 10.2). Juan F. Martínez-Murillo, Paloma Hueso-González, Francisco Aranda-Gómez, and José Damián Ruiz-Sinoga. 2014. Impact of a low intensity controlled-fire in some chemical soil properties. Geophysical Research Abstracts Vol. 16, EGU2014-1066, 2014 EGU General Assembly 2014. http://hdl.handle.net/10630/6849 Suelos - Efectos de la temperatura Impact of a low intensity controlled-fire in some chemical soil properties.