Fire behavior of Quercus mongolica  leaf litter fuelbed under zero-slope and no-wind conditions. Ⅲ. Analysis and modelling of fireline intensity, fuel consumption, and combustion efficiency. Combustibility of Four Young Vegetation Restoration Stands in the Rocky Desertification Area in the Southwest Region of Hunan Province Estimation to Dead Surface Combustible Parameters and Evaluation of Potential Surface Fire Behavior of Artificial Coniferous Forests in Chengde County