三维可视化软件在辽东山区森林生态系统管理中的应用

Application of 3D visualization software in forest ecosystem management in eastern Liaoning mountainous region

利用三维可视化软件WCS6.0,结合林相图信息,构建了辽东山区普乐堡乡的虚拟森林景观,并模拟了4种经营管理方案(封育未成林幼抚、小面积皆伐、择伐和二次渐伐)下研究区林相的动态变化.结果表明:对幼龄林采取保育措施后,10～30龄长白落叶松的生长速度较快,大约以0.6m.a-1的速度生长,蒙古栎的生长速度稍慢,约为0.4m.a-1;小面积皆伐对林分的影响较大,二次渐伐其次,低强度的择伐对林分的影响最小.WCS能够直观地显示各种森林经营管理方案的后果,可以为森林经营决策提供科学依据.

By using 3D visualization software WCS 6.0,the virtual forest landscape of Pulepu Town in eastern Liaoning mountainous region was constructed,and the dynamic changes of forests under four different management scenarios,i.e.,enclosing undeveloped forest,small area clear-cutting,selective-logging,and two-step progressive logging,were modeled.The results showed that under enclosure,10-30 years old Larix olgensis var.changpaiensis grew faster（ca.0.6 m·a^-1）,while 10-30 years old Quercus mongolica grew slower（ca.0.4 m·a^-1）.Small area clear-cutting had the greatest effects on the forests,followed by two-step progressive logging,and low intensity selective-logging.The WCS software could visually display the outcomes of different scenarios,which would benefit the decision-making in forest management.