Dendrology, Tundras, Terrestrial ecosystems, Ecosystems, Biology, Rhizomes, Agronomy, Botany, Plant morphology, Shrubs, Plant vegetation, Agriculture, Soil science, Biomes, Ecology, Plants, Stems, Soils, Agricultural sciences, Edaphology, Arctic tundra, Plant roots, Marine ecosystems, Biological sciences, Tundra soils, Soil ecology, Aquatic ecosystems, ectom...
Canada, Nitrogen - metabolism, Temperature, Acetylene - metabolism, Polymorphism, Restriction Fragment Length, Arctic Regions, Oxidoreductases - genetics, Soil Microbiology, Ecosystem, DNA Primers, Fertilizers
Temperature, Gene Library, Soil Microbiology, Biota, Phylogeny, Mycorrhizae - growth & development, Bacteria - genetics, Bacteria - growth & development, Carbon Cycle, Mycorrhizae - genetics, Climate Change, DNA, Ribosomal Spacer - genetics, Arctic Regions, Ecosystem, Soil - chemistry, Betula
Archaeology, Editors, Cultural heritage