| Autor: |
Grigorev, Igor, Ivanov, Viktor, Burmistrova, Olga, Stepanishcheva, Marina |
| Předmět: |
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| Zdroj: |
Proceedings of the International Multidisciplinary Scientific GeoConference SGEM; 2014, Vol. 2, p521-527, 7p |
| Abstrakt: |
This article proposes a universal approach to estimate ecological efficiency for forest management. It is consist in comparison power inputs for wood production and its energy output. The aim of the study is validation of omnibus methodology that allows a unified approach to assess effectiveness and quality of forest management in different natural and industrial conditions. This article discusses the most diffused opinion on harvesting quality - namely refuse of final harvesting with maximum possible preservation of main species undergrowth, in order to reduce the rotation period. Versus to previous authors show that undergrowth preservation on significant area is not profitable due to its poor development prospects, or due to its insufficient amount. According to large-scale survey on cuttings in Western and Central Siberia 15 - 95% and sometimes 100% preserved and viable conifers undergrowth dies. Similar data were obtained on some loggings in Russian North- West Region, in particular, undergrowth waste (20 years age at felling time) over a five year period after final harvesting ( Krestetsky Logging Enterprise) formatting in forb spart, small reed spart and spart-types was respectively 18.5 % , 57.3 % and 100 %. Thus concludes that percentage of preserved undergrowth saved during logging can't be a decisive quality criterion. Further shown that refuse of final harvesting, also can't be a quality index for forest management. As a universal quality index for forest management, that takes into account all the differences in the natural conditions and production location of timberland, is proposed efficiency energy index. It is shown that the evaluation of the energy "net cost" and assessment of obtained wood product energy "cost" does not cause methodological difficulties. Thus, difference between energy "net cost" (energy consumption at all phases of wood producing) and energy "cost" (energy output) of products can be considered a universal quality index. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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