Michigan Forest Inventory - Stand Covertype

A stand is a polygon representing a relatively homogenous area of similar cover type. Stands are classified as ‘forested’ (having a canopy of tree species greater than 3 feet tall covering at least 25% of the stand area) or ‘nonforested’ (all stands not meeting the definition of forested). In forested stands, the age class of trees, species composition, basal area stocking, and age structure will be consistent. Nonforested stands are areas of similar species composition. Stands follow mapping standards per MiFI Manual.林分（stand）是一类由多边形表征、覆盖类型相对均一的区域。林分可划分为"有林地（forested）"与"无林地（nonforested）"两类：其中有林地指树高超过3英尺的乔木林冠覆盖面积占林分总面积至少25%的林分；未满足该定义的林分均归为无林地。在有林地林分中，树木的龄级、树种组成、断面积蓄积量以及年龄结构均保持一致。无林地林分为树种组成相对均一的区域。所有林分均需遵循《MiFI手册》规定的制图标准。