Investigating the consequences of stopping forestry projects during the breathing period on the condition of the forest road network in the north (case study: Golestan province)

Document Type : Complete scientific research article

Authors

1 Associate Professor of Forestry Department, Faculty of Forest Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran.

2 Department of Forestry, Faculty of Forest Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran

3 Department of Forestry, Faculty of Forest Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran.

4 Ph.D. student of forest management, Faculty of Natural Resources, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan

Abstract

Investigating the consequences of stopping forestry projects during the breathing period on the condition of the forest road network in the north (case study: Golestan province)
Abstract
Background and objectives: One of the most important consequences of Stopping forestry projects during the breathing period is the abandonment of forest roads and their lack of care and maintenance, and as a result, the deterioration of this national capital. The aim of the present study was to investigate the effect of the lack of forest management in Golestan province on the reduction of the transportation length, the decrease of the CBR of the forest roads, the reduction of the UPCI index and the reduction of the protection control of the forest road network.
Materials and methods: In this research, the active transportation length of the network of forest roads and the percentage of protection control of these roads with a width of 200 meters from the sides in 12 forestry projects of Golestan province, including Rezaiyan 1, Sorkhdari, Sukhdari, Shamushek, Shast Kalate, Arab Dagh, Loveh 1, Loveh 2, Loveh 3, Loveh 4, Livan 1 and Livan 2 were evaluated in the geographic information system 5 years after the cessation of forestry projects. Also, the three plans of Shast-Kalate, Rezaiyan and Arab-Dagh as representatives of the Mediterranean, semi-humid and semi-arid climatic zones and the condition of the types of first, second and third class roads in them through UPCI and CBR analysis were checked and compared with optimal conditions.
Findings: The results showed that the length of transportation and the protective control of the forest road network in the study areas decreased by 10.4 and 5.2 percent, respectively, during the 5 years of suspension of forestry projects. The results of the UPCI analysis of the roads of Hast-Kalate, which is located in the Mediterranean climate, show that the roads of the second and third grade of this forest have degraded to a poor condition. The first class roads of Arab-Dagh, which is located in a semi-arid climate, are in good condition, while the condition of the second and third class roads was reduced to normal. In the forests of Rezaiyan, which is located in a semi-humid climate, first-class roads have normal conditions, while second- and third-class roads have degraded to poor and very poor conditions, respectively. The CBR values of the roads after 5 years of breathing plan were lower than the normal CBR, which indicates a noticeable drop in the carrying capacity of the network.
Conclusion: Overall, the downward trend of UPCI, CBR and the percentage of road protection control indicates that in order to continue the service of the roads, immediate protection of the road network is necessary because the continuation of this downward trend causes So that in the near future, as a result of the intensification of road damage, the length of transportation and the protective control of the forest road network will decrease even more.
Key words: Transportation length, Protective control, UPCI, Loading capacity

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References

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Journal of Wood and Forest Science and Technology
Volume 31, Issue 1
April 2024
Pages 23-41

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