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4.3.0 Management Plan Template.doc <br /> _ <br /> r. w =T a= longest growing season in the south and the shortest on the <br /> %;;;.r: Twp;_ outwash plains at the northern edge of the subsection(Dept. of <br /> • Soil Science, Univ. of Minnesota 1977, 1980b). <br /> o <br /> Hydrology Major rivers rennin v s g <br /> y� -�+-- '�.. '- •� through this subsection <br /> { ,.z - ,ti# • �s include the St. Croix, which forms part of the eastern boundary <br /> �'�; T ' * ' , • and the, Kettle, Snake, Rum, and Ripple rivers.The drainage <br /> network is young and undeveloped, with extensive areas of <br /> wetlands present. There are 100 lakes greater than 160 acres in <br /> size. Most occur on end moraines. <br /> Presettlement vegetation The original vegetation consisted of a mosaic of forest <br /> types. Along the southern boundary, maple-basswood forests were prevalent. The rest of the <br /> subsection was a vast mix of conifer,hardwood and mixed conifer-hardwood forests. Peatland <br /> areas were inhabited by sedge-fen, black spruce-sphagnum, or white cedar-black ash <br /> communities. <br /> Present vegetation and land use Agriculture is concentrated in the western <br /> and southern portions of this subsection. Forestry and recreation are the most important land uses <br /> in the central and eastern part. There are large areas in eastern Pine County that are still heavily <br /> forested and relatively undisturbed, although there are no significant examples of large white <br /> pine stands still present. <br /> Natural disturbance Both fire and wind throw were important in determining the <br /> vegetation of the subsection. Because dense basal till is present at depths of 20 to 40 inches <br /> throughout most of the subsection,rooting depths for trees are shallow and wind throw is <br /> common. <br /> Conservation concerns <br /> Species in Greatest Conservation need for the Mille Lacs Uplands Subsection <br /> 8 <br />