东北林业大学学报
東北林業大學學報
동북임업대학학보
JOURNAL OF NORTHEAST FORESTRY UNIVERSITY
2015年
7期
92-96
,共5页
黄小荣%侯远瑞%庞世龙%申文辉
黃小榮%侯遠瑞%龐世龍%申文輝
황소영%후원서%방세룡%신문휘
BehavePlus%间伐%林冠容重%冠基高%风速修正因子
BehavePlus%間伐%林冠容重%冠基高%風速脩正因子
BehavePlus%간벌%림관용중%관기고%풍속수정인자
Behave plus%Thinning%Canopy bulk density%Canopy base height%Wind adjustment factor
以南宁老虎岭马尾松生态公益林为例,应用BehavePlus 5.0分析了间伐前后3块不同样地的火行为。结果表明:间伐处理使地表火面强度降低28%~50%,地表火反应强度降低22%~45%,树冠火火线强度降低48%~59%,大幅降低了地表火向树冠火的转化率;在间伐后干旱夏季的12种情景中,仍然有10种情景的火线强度超过手工工具扑灭范围,1种情景下火线强度超出人类使用所有机械能够控制的极限。
以南寧老虎嶺馬尾鬆生態公益林為例,應用BehavePlus 5.0分析瞭間伐前後3塊不同樣地的火行為。結果錶明:間伐處理使地錶火麵彊度降低28%~50%,地錶火反應彊度降低22%~45%,樹冠火火線彊度降低48%~59%,大幅降低瞭地錶火嚮樹冠火的轉化率;在間伐後榦旱夏季的12種情景中,仍然有10種情景的火線彊度超過手工工具撲滅範圍,1種情景下火線彊度超齣人類使用所有機械能夠控製的極限。
이남저로호령마미송생태공익림위례,응용BehavePlus 5.0분석료간벌전후3괴불동양지적화행위。결과표명:간벌처리사지표화면강도강저28%~50%,지표화반응강도강저22%~45%,수관화화선강도강저48%~59%,대폭강저료지표화향수관화적전화솔;재간벌후간한하계적12충정경중,잉연유10충정경적화선강도초과수공공구복멸범위,1충정경하화선강도초출인류사용소유궤계능구공제적겁한。
With 31-year Pinus msa soniana non-commercial forest in Tiger Mountain, Nanning, we studied their fire behavior of three sampled plots by BehavePlus 5.0.The thinning significantly reduced the transition rate to crown fire.The disposal of shrub, dead branches contributed to a reduction by 28%-50%in heat per unit area, a decrease by 22%-45%in reaction intensity, and a fall of 48%-59% in crown fireline intensity.Among 12 post-treatment summer drought scenarios, 10 still had fireline intensities exceeding the control by hand tools, and 1had intensity overrunning all mechanical controls .