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, : (Carbon, climate, and land-use in Ukraine: Forest sector) Book May 2014 READS 5 authors, including: Anatoly Shvidenko ...

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By state for 2011, NPP of Ukrainian forests is high 49.0 Tg Cyr1, or 512 g Cm2yr1. Of the total amount of NPP, 35.5% is produced by coniferous forests, 54.7% by hard wood deciduous and 9.4% by soft wood deciduous forests. Major part of the total NPP is provided by middleaged (51.1%) and immature (15.7%) forests. NPP of mature forests remains high because the officially regulated age of harvest of Ukrainian forests is substantially lower than the age of natural maturity. By group of species, density of NPP is distributed as following: hard wood deciduous 638 gCm2yr1 (including oak 641 gCm2yr1), soft wood deciduous 438 gCm2yr1 (including birch 494 gCm2yr1), and coniferous forests 410 gCm2yr1 (including spruce 547 gCm2yr1 and pine 403 gCm2yr1).

Distribution of NPP by fraction is as following: 81.6% of the total NPP is allocated in trees, of which 27.5% is in above ground wood (and 20.7% in stem wood), 24.1% in foliage, and 31.0% is comprised by tree roots. Green forest floor comprises 10.6% NPP and understory 3.9%. All NPP that is allocated in the above ground live biomass of the forest ecosystems accounts for 60.8%, and 39.2% is allocated below ground, i.e.

the average ratio between above and below ground live biomass is 1.55.

This ratio is different for different species and groups of species (e.g.,

1.21 for beech, 2.15 for birch).

The above estimates are average for the last two decade and do not include the impacts of climate and environment change. Estimated uncertainty of the average annual NPP for the forests of the country is around 1015% (CI 0.9). Taking into account that the method used for assessment of NPP is substantially based on growth regularities of previous decades, one could suppose that this estimate underestimates current NPP of Ukrainian forests, presumably in range of several percent.

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