A személy- és teherszállításban a vasút kiemelkedő szerepet tölt be, jelentősége pedig a következ... more A személy- és teherszállításban a vasút kiemelkedő szerepet tölt be, jelentősége pedig a következő években vélhetően tovább növekszik. A közlekedésből származó zajterhelés ugyanakkor napjainkban összetett és folyamatos környezetvédelmi problémákat okoz. A különböző zajhatások a vasútvonalak mentén környezeti terhelésként jelentkeznek, még a közlekedési csomópontokban üzemi zajforrásként értelmezhetők. Ebben a cikkben az utóbbi hatás vizsgálatát mutatjuk be a GYSEV Zrt. hozzájárulásával és szakmai támogatásával Sopron Rendezőpályaudvara és a legközelebbi lakott utca, mint közvetlen hatásterület sajátosságai, a járműpark és a forgalmi viszonyok jellemzésén keresztül. A szerelvények zajkibocsátását leíró paraméterek (Leq, Imax és SEL) számszerűsítéséhez nappali (6:00-22:00 óra között) és éjszakai (22:00-6:00 óra között) méréseket végeztünk a járműmozgások regisztrációjával párhuzamosan. Ezt követően az adatsorok kiértékelésével lehetővé vált a pályaudvaron előforduló forráspozíciók meg...
Nowadays, the black locust (Robinia pseudoacacia) is the most current and the most widely used tr... more Nowadays, the black locust (Robinia pseudoacacia) is the most current and the most widely used tree species in Hungary. Due to its penetration and the wide variety of application it’s worth to examine the different mechanization options of the reforestation technologies and their costs. We provided our research in the area of Nyírerdő Nyírségi Erdészeti Zrt. According to the tests it can be said, that the cost of the reforestations with root ripping is the most favourable and the reforestation or regeneration with planting costs the most. The disadvantage of the regeneration with root ripping is, that after its multiple application it can be observed the significantly degradation of the assortment composition and of the tree utilization income.
In cutting areas soil preparation is necessary occasionally before reforestation. The aim of the ... more In cutting areas soil preparation is necessary occasionally before reforestation. The aim of the action is a land-use planning that enables the performing of further measures without problems. Removal, collection and transportation of stumps from the soil are part of this. Issues related to climate change and the shortcoming of fossil energy resources call attention to increasing the rate of renewable energy resources. Using stumps removed from the soil as fuel is a significant resource within the biomass potential. For lifting a part of the stump and the roots generally a special holding device mounted on a bagger is used. Utilization of the lifted stumps for energy purposes increases worldwide (especially in the Scandinavian countries) (Kärhä, K., and Mutikainen, A. 2009). In order to rationalize the work operation of stump lifting time analyses have been carried out (Laitika, J., Ranta, T. and Asikainen, A. 2008). Results of Hungarian experiments are presented below.
Wood is the dominant source of biofuel in many countries. Nowadays about 15% of world energy requ... more Wood is the dominant source of biofuel in many countries. Nowadays about 15% of world energy requirements have been provided by biomass. Among the many methods of potentially sustainable energy generation the biomass has received increasing attention. Between the biomass that may be used for energy production, woody plantations show the greatest potential from both the productive and the environmental point of view. The article describes the cropping technologies and energy balance of the woody plantations.
IOP Conference Series: Earth and Environmental Science, 2019
One possible solution for the production of wood for energy or industrial purposes is the plantin... more One possible solution for the production of wood for energy or industrial purposes is the planting of energy wood plantations. In this type of target plantation, a large amount of dendromass can be produced in a short time. Before the afforestation the site survey is highly important. Based on the results the tree species can be chosen and the corresponding cultivation technologies can be planned. Energy plantations are generally man-made forests with fast-growing species and the rotation period is short. Therefore it is necessary to determine the method of harvesting and the corresponding machine system already at the planning phase. After harvesting the timber should be transported in a short period of time in order not to prevent the development of the next tree stand. At the transport large amount of wood chip must be moved for shorter or longer distance. Thus the applied logistic plays very important role in the whole process, by making the operation of timber utilizing power p...
Nowadays, the black locust (Robinia pseudoacacia) is the most current and the most widely used tr... more Nowadays, the black locust (Robinia pseudoacacia) is the most current and the most widely used tree species in Hungary. Due to its penetration and the wide variety of application it’s worth to examine the different mechanization options of the reforestation technologies and their costs. We provided our research in the area of Nyírerdő Nyírségi Erdészeti Zrt. According to the tests it can be said, that the cost of the reforestations with root ripping is the most favourable and the reforestation or regeneration with planting costs the most. The disadvantage of the regeneration with root ripping is, that after its multiple application it can be observed the significantly degradation of the assortment composition and of the tree utilization income.
In cutting areas soil preparation is necessary occasionally before reforestation. The aim of the ... more In cutting areas soil preparation is necessary occasionally before reforestation. The aim of the action is a land-use planning that enables the performing of further measures without problems. Removal, collection and transportation of stumps from the soil are part of this. Issues related to climate change and the shortcoming of fossil energy resources call attention to increasing the rate of renewable energy resources. Using stumps removed from the soil as fuel is a significant resource within the biomass potential. For lifting a part of the stump and the roots generally a special holding device mounted on a bagger is used. Utilization of the lifted stumps for energy purposes increases worldwide (especially in the Scandinavian countries) (Kärhä, K., and Mutikainen, A. 2009). In order to rationalize the work operation of stump lifting time analyses have been carried out (Laitika, J., Ranta, T. and Asikainen, A. 2008). Results of Hungarian experiments are presented below.
A személy- és teherszállításban a vasút kiemelkedő szerepet tölt be, jelentősége pedig a következ... more A személy- és teherszállításban a vasút kiemelkedő szerepet tölt be, jelentősége pedig a következő években vélhetően tovább növekszik. A közlekedésből származó zajterhelés ugyanakkor napjainkban összetett és folyamatos környezetvédelmi problémákat okoz. A különböző zajhatások a vasútvonalak mentén környezeti terhelésként jelentkeznek, még a közlekedési csomópontokban üzemi zajforrásként értelmezhetők. Ebben a cikkben az utóbbi hatás vizsgálatát mutatjuk be a GYSEV Zrt. hozzájárulásával és szakmai támogatásával Sopron Rendezőpályaudvara és a legközelebbi lakott utca, mint közvetlen hatásterület sajátosságai, a járműpark és a forgalmi viszonyok jellemzésén keresztül. A szerelvények zajkibocsátását leíró paraméterek (Leq, Imax és SEL) számszerűsítéséhez nappali (6:00-22:00 óra között) és éjszakai (22:00-6:00 óra között) méréseket végeztünk a járműmozgások regisztrációjával párhuzamosan. Ezt követően az adatsorok kiértékelésével lehetővé vált a pályaudvaron előforduló forráspozíciók meg...
Nowadays, the black locust (Robinia pseudoacacia) is the most current and the most widely used tr... more Nowadays, the black locust (Robinia pseudoacacia) is the most current and the most widely used tree species in Hungary. Due to its penetration and the wide variety of application it’s worth to examine the different mechanization options of the reforestation technologies and their costs. We provided our research in the area of Nyírerdő Nyírségi Erdészeti Zrt. According to the tests it can be said, that the cost of the reforestations with root ripping is the most favourable and the reforestation or regeneration with planting costs the most. The disadvantage of the regeneration with root ripping is, that after its multiple application it can be observed the significantly degradation of the assortment composition and of the tree utilization income.
In cutting areas soil preparation is necessary occasionally before reforestation. The aim of the ... more In cutting areas soil preparation is necessary occasionally before reforestation. The aim of the action is a land-use planning that enables the performing of further measures without problems. Removal, collection and transportation of stumps from the soil are part of this. Issues related to climate change and the shortcoming of fossil energy resources call attention to increasing the rate of renewable energy resources. Using stumps removed from the soil as fuel is a significant resource within the biomass potential. For lifting a part of the stump and the roots generally a special holding device mounted on a bagger is used. Utilization of the lifted stumps for energy purposes increases worldwide (especially in the Scandinavian countries) (Kärhä, K., and Mutikainen, A. 2009). In order to rationalize the work operation of stump lifting time analyses have been carried out (Laitika, J., Ranta, T. and Asikainen, A. 2008). Results of Hungarian experiments are presented below.
Wood is the dominant source of biofuel in many countries. Nowadays about 15% of world energy requ... more Wood is the dominant source of biofuel in many countries. Nowadays about 15% of world energy requirements have been provided by biomass. Among the many methods of potentially sustainable energy generation the biomass has received increasing attention. Between the biomass that may be used for energy production, woody plantations show the greatest potential from both the productive and the environmental point of view. The article describes the cropping technologies and energy balance of the woody plantations.
IOP Conference Series: Earth and Environmental Science, 2019
One possible solution for the production of wood for energy or industrial purposes is the plantin... more One possible solution for the production of wood for energy or industrial purposes is the planting of energy wood plantations. In this type of target plantation, a large amount of dendromass can be produced in a short time. Before the afforestation the site survey is highly important. Based on the results the tree species can be chosen and the corresponding cultivation technologies can be planned. Energy plantations are generally man-made forests with fast-growing species and the rotation period is short. Therefore it is necessary to determine the method of harvesting and the corresponding machine system already at the planning phase. After harvesting the timber should be transported in a short period of time in order not to prevent the development of the next tree stand. At the transport large amount of wood chip must be moved for shorter or longer distance. Thus the applied logistic plays very important role in the whole process, by making the operation of timber utilizing power p...
Nowadays, the black locust (Robinia pseudoacacia) is the most current and the most widely used tr... more Nowadays, the black locust (Robinia pseudoacacia) is the most current and the most widely used tree species in Hungary. Due to its penetration and the wide variety of application it’s worth to examine the different mechanization options of the reforestation technologies and their costs. We provided our research in the area of Nyírerdő Nyírségi Erdészeti Zrt. According to the tests it can be said, that the cost of the reforestations with root ripping is the most favourable and the reforestation or regeneration with planting costs the most. The disadvantage of the regeneration with root ripping is, that after its multiple application it can be observed the significantly degradation of the assortment composition and of the tree utilization income.
In cutting areas soil preparation is necessary occasionally before reforestation. The aim of the ... more In cutting areas soil preparation is necessary occasionally before reforestation. The aim of the action is a land-use planning that enables the performing of further measures without problems. Removal, collection and transportation of stumps from the soil are part of this. Issues related to climate change and the shortcoming of fossil energy resources call attention to increasing the rate of renewable energy resources. Using stumps removed from the soil as fuel is a significant resource within the biomass potential. For lifting a part of the stump and the roots generally a special holding device mounted on a bagger is used. Utilization of the lifted stumps for energy purposes increases worldwide (especially in the Scandinavian countries) (Kärhä, K., and Mutikainen, A. 2009). In order to rationalize the work operation of stump lifting time analyses have been carried out (Laitika, J., Ranta, T. and Asikainen, A. 2008). Results of Hungarian experiments are presented below.
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