林业科学
林業科學
임업과학
SCIENTIA SILVAE SINICAE
2009年
10期
163-167
,共5页
高宝嘉%张桂娟%周国娜%张鸿军%于志勇%李利学%迟宝利
高寶嘉%張桂娟%週國娜%張鴻軍%于誌勇%李利學%遲寶利
고보가%장계연%주국나%장홍군%우지용%리리학%지보리
人工针叶林%可燃物载量%可燃物含水率%潜在地表火行为
人工針葉林%可燃物載量%可燃物含水率%潛在地錶火行為
인공침협림%가연물재량%가연물함수솔%잠재지표화행위
artificial coniferous forests%fuel loading%water ratio of combustible%potential surface fire behavior
The dead surface combustibles of artificial coniferous forests in Chengde were focused in this paper. Predicting models between fuel loading and the stand and landform factors, as well as between water ratio of combustibles and weather factors were established with a regression analysis method. The models were effective in calculating fuel loading and water ratio. Fuel loading, water ratio and thickness of combustibles are regarded as the parameters of potential surface fire behavior. Based on a cluster analysis, the potential surface fire behavior of different forest lands was divided into 3 classes: strong, medium, or weak surface fire. The results indicated that most of artificial coniferous forests were in the status of medium surface fire, the risk of surface fire of mixed forests was lower than pure forests, and that of sapling forests and half-mature forests was higher than near-mature forests.
