Impact of Mechanized Harvesting Machines on Forest Ecosystem: Residual Stand Damage
نویسندگان
چکیده
منابع مشابه
Comparison of damage to residual stand due to applying two different harvesting methods in the Hyrcanian forest of Iran: cut-to-length vs. tree length
Damage to residual stand is unavoidable and it is one of the main important issues in the forest harvesting. Trees damage may occur in felling and skidding work phase or during skid trail construction. In any case, damage can be very serious to residual stand. Detailed study is necessary to find out the amount and severity of damage to trees; therefore district 14 of Kilesara in Guilan Province...
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Abstract The aim of this research is to present a simulation model for reducing economic damages of mechanized wheat harvesting in the weather conditions of Khuzestan province and similar areas. The simulated model is composed of three sub-models, for determining of the appropriate working hours, grain losses, and economic sub-model. In order to determine the appropriate working hours, a mathem...
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In the Shafaroud forest, logging operation is generally performed by using selective cutting methods. Chainsaw and cable skidder are two main forest machines for harvesting of this forest. However, forest harvesting operations result in serious residual stand damage during felling, winching and skidding operations in this forest. Residual stand damage resulting from selective cutting was asses...
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The present investigation of forest ecosystem was undertaken during May 2010 to Dec 2010. The main aim of the study was to analyze the impact of biotic interferences on Yousmarg forest ecosystem. The cumulative effect of the biotic interferences was signif icantly seen in the reduction of vegetation cover. The present study revealed that the prominent factor for the exploitation of the vegetati...
متن کاملEffect of environmental variables and stand structure on ecosystem respiration components in a Mediterranean beech forest.
The temporal variability of ecosystem respiration (RECO) has been reported to have important effects on the temporal variability of net ecosystem exchange, the net amount of carbon exchanged between an ecosystem and the atmosphere. However, our understanding of ecosystem respiration is rather limited compared with photosynthesis or gross primary productivity, particularly in Mediterranean monta...
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ژورنال
عنوان ژورنال: Journal of Applied Sciences
سال: 2006
ISSN: 1812-5654
DOI: 10.3923/jas.2006.2414.2419