afforestation and regrow forests. young pine planted regrowth on plot with sandy soil, pine sapling. small trees in

tree summer nature pine grew spruce undergrowth reforestation regrow sandy soil second growth small softwood staddle sylviculture taiga tamarack breeding crop system wood zone young northern plant sapling forestry sector afforestation silviculture management coniferous conifer forest growing grass green restoration arboriculture advance firtree fir regrowth species husbandry breed selfseeding aftergrowth