Forests act as a major carbon pool in terrestrial ecosystems sequestering about 47 of the total terrestrial carbon dixon et al 1994 co 2 sequestration varies with forest type dominant tree . Forest systems cover more than 41 x 109 hectares of the earths land area globally forest vegetation and soils contain about 1146 petagrams of carbon with approximately 37 percent of this carbon in low latitude forests 14 percent in mid latitudes and 49 percent at high latitudes over two thirds of the carbon in forest ecosystems is contained in soils and associated peat deposits in . Articleosti 5058981 title carbon pools and flux of global forest ecosystems author dixon rk and solomon am and brown s and houghton ra and trexler mc and wisniewski j abstractnote forest systems cover more than 41 x 10sup 9 hectares of the earths land area globally forest vegetation and soils contain about 1146 petagrams of carbon with approximately 37 . Forest nitrous oxide n 2 o emission plays an important role in the greenhouse gas budget of forest ecosystems however spatial variability in n 2 o fluxes complicates the determination of key factors of n 2 o fluxes at different scales based on an updated database of n 2 o fluxes and the main edaphic factors of global forests the magnitude of n 2 o fluxes from forests and the . Attempts to account for the fluxes by quantifying c sources and sinks have provided evidence of a missing c sink detwiler and hall 1988 which may be located somewhere in the temperate region of the northern hemisphere tanset al 1990 until recently most estimates have concluded that the temperate forest is a small c source
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