Factors Affecting the Distribution of Populus balsamifera on the North Slope of Alaska, U.S.A

Figures & data

FIGURE 1. A map showing the location of balsam poplar groves in relation to braiding and aufeis development on major rivers on the North Slope of Alaska (numbered sites are described in Table 5)

FIGURE 2. A map showing the location of balsam poplar groves in relation to faulting and geothermal springs on the North Slope of Alaska

FIGURE 3. A preliminary model showing conditions favoring balsam poplar on the North Slope of Alaska

TABLE 1 A comparison of vegetation and soil variables along a north-south transect with distance from the river^a

TABLE 2 Chemical composition of Populus balsamifera in arctic Alaska by tissue and crown/stem position

TABLE 3 Soil properties of representative pedons at the “Cottonwood Creek” balsam poplar site, North Slope of Alaska

TABLE 4 Chemical composition of natural waters along the North Slope of Alaska

TABLE 5 Physiographic features of sites containing balsam poplar