【摘要】 应用模图分析法,选择山地林区典型的树状林道网配置模图进行研究分析山地林道网密度、综合系数与配置线形间的相互关系,建立了精确计算林道网合理密度的迭代模型,并举例说明模型的应用,指出当叉线与干线的夹角β为90°时,林道网取得最佳的配置效果;林道网合理密度是相对于集材方式而言的,在一片伐区上要得到最佳的林道网密度,需要进行集材方式的优选。更多还原

【Abstract】 Thepaperstudiedtherelationshipsamongthedensity,comprehensivecoefficientandconfigurationoffor estroadnetworkaboutthedispositionconfiguationoftypicaltree formforestroadnetworkinmountainforestregion configurationanalysis.Thereplacementmodelforcalculatingtheaccurateoptimumdensityofforestroadnetworkwas developedtoincreasetheapplicationvalueofthetheoryofforestroadnetwork .Anditillustratestheuseofthemodel withexamplesandpointsoutthattheoptimumeffectofdispositionofforestroadnetworkisachievedwhentheangle betweenbranchroadandmainroadis90° ,thereasonabledensityofforestroadnetworkisrelatedtothewayofyard ing .Iftheoptimumdensityofforestroadnetworkistobeobtainedinapieceofcuttingarea,thewaysofyarding needoptimumchoosing .更多还原