湖北乔灌复层防火林带模式研究

通过对湖北乔灌复层防火林带的研究表明:1、乔灌复层防火林带中乔、灌不同树种对土壤、气候等环境条件的要求相同或近似,灌木树种要有一定的耐阴能力,防火树种以乡土树种为主。2、防火林带内树种的基本配置方式有凸形配置和凹形配置2种,二者各有优势,在实际应用中,应根据具体情况综合运用,以提高林带防火能力。3、林带走向应与防火季节主风向垂直,在湖北绝大多数林带的走向以东西向为宜,林中应设计与坡向垂直的林带,林带造林密度大于常规造林密度。

Study on Model of Multi-storied Firebreak Zone of Tree and Shrub in Hubei

Based on studying on multi-storied firebreak zone of tree and shrub, the results were given as follows:1.The tree and shrub in the firebreak zone should have the same demand for soil and climate condition, the shrub tree species must be shade tolerant ability, indigenous species should be selected as fire prevention ones for the firebreak. 2.There were two patterns of the species deployment such as protruding and concave ones, the two patterns had some advantages separately and should be utilized multipurpose in application. 3.The firebreak trend must be vertical to main wind direction in the fire protection season, it was suitable for the firebreak to be built in east and west direction in Hubei province and some firebreak that were vertical to the slope and also must be designed in the forest, the firebreak planting density should be bigger than conventional planting density.