摘要
为了进行伐区林道的合理布设，综合考虑了与伐区林道有关的木材生产费用、营林保护费用及水土流失的效益损失，建立了伐区林道合理密度公式。并以水土流失量、坡度、坡长等地理信息为约束条件，建立了伐区林道合理布线模型。在研究实例的实验区域用计算机进行了模拟。研究结果表明：林道密度公式和布线模型比较合理。
When forest road being laid out, its impact onto the environment must be considered With conside-ration of operation costs, reforestation costs and equivalent lose of profits by soil erosion, the optimum density model of forest road network in the forest areas was founded On the basis of the density model and previous study, a new mathematical model concerning the layout of forest road was presented under the constraints of geographical information such as slope, quantity of soil erosion, length of slope, etc These models are proved quite feasible by case study and computer simulation They are highly helpful to practical operations
出处
《东北林业大学学报》
CAS
CSCD
北大核心
1998年第5期64-67,共4页
Journal of Northeast Forestry University
基金
国家优秀青年教师基金
关键词
林道
合理密度
水土流失量
伐区
合理布设
Forest road
Optimum density
Layout
Soil erosion
Geographical information
Case study
