Abstract:

Forest fuel is burning elements of forest fire, and the various species have different combustibility. In this study we measured the moisture content, caloric values, ash content and extractives content of 9 main woody species in the central part of Tianshan Mountains. The variation characteristics of fuel index of different woody species were evaluated by the integrative evaluation system with multivariate statistical methods and combustible indicators. The result showed that Sabina saltuaria > Picea schrenkiana var. tianschanica > Berberis heteropoda > Crataegus pinnatifida > Lonicera tatarica > Populus tremula > Salix depressa > Sorbus tianschanica > Rosa platyacantha. Therefore, this study would provide a basis for forest fire occurrence prediction, forest fire action prediction, extinguishing direct, forestation firing, biology fireproofing and so on.

Key words: Tianshan Mountains, forest fuel, combustibility