Northern forest region

Kauppi, M.. Mikkonen, A., 1980. Floristic versus single species analysis in the use of epiphytic lichens as indicators of air pollution in a boreal forest region. Northern Finland. Flora 169, 255-281. 

In the absence of fire in the Boreal and the Great Lakes-St. Lawrence Forest Regions, jack pine is often succeeded by the more tolerant black spmce, white spmce and balsam fir (Cayford et al, 1967). On productive sandy sites in Minnesota, it may be succeed by red pine, then white pine and mixed hardwoods in some cases succession is directly to hardwoods such as white birch and trembling aspen (Rudolf, 1965). In the Boundary Waters Canoe Area of northern Minnesota, succession may be to black spmce - feather moss forest types, or balsam fir - white birch - white spmce types (Cayford and McRae, 1983). 

Johnson, H. J. 1956. Some aspects of hlack spruce reproduction in the central horeal forest region of Manitoba. Dept, of Northern Affairs and Natural Resources, For. Br., For. Res. Div., Project Manuscr. 175, 15 pp. 

In the northern forest-steppe of Tyumen Region, where saline soils are foimd along with fertile ones, joint treatment of seeds of three cultivars of barley with low salinity resistance by salt solution and PABA (0.01% solution) led to growth of germs salinity resistance irrespective of NaCl... 

Chemical engineering in general and chemical reaction engineering in particular are in key position to carry out this transformation. One of the most important sources of biomass is forests, not only the rain forests and eucalyptus trees growing in the tropical areas of the earth but also the forests in the Northern hemisphere, for instance in Canada, USA, Russia, and in the Fenno-Scandic region. The big... 

This sub-region of biosphere occupies the northern part of the Chuvash administrative region with predominance of Broad-Leafed Forest and Meadow Steppe natural... 

Anthropogenic Volatile Organic Compounds in Forest Areas of Northern and Southern Europe and a Remote Site of the Himalaya Region by High-Resolution Gas Chromatography-Mass Spectrometry, . /. Chromatogr., 643, 55-69 (1993b). 

Wolfe JA (1979) Temperature parameters of the humid to mesic forests of eastern Asia and their relation to forests of other regions of the Northern Hemisphere and Australasia. US Geol Surv Prof Pap 1106 1-37 Wolfe JA (1990) Palaeobotanical evidence for a marked temperature increase following the Cretaceous/Tertiary boundary. Nature 343 153-156... 

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