Investigation of Structure and Regeneration Forest Trees in Logged and Non-logged (Case of study: Darabkola Forest of Sari)

Subject Areas : forest

ali shojaie shami ¹ , امین وثوقیان ²

1 - daneshko
2 - -

Received: 2016-03-01 Accepted : 2016-12-18 Published : 2017-02-19

Keywords: regeneration, Silviculture, Shelterwood system, logged, Non-logged,

Abstract :

In this study the effects of the silvicultural methods was investigated on structure and regeneration of the forest trees in logged and non-logged stands according to the importance of forest trees. The forest had two regions with same areas which one of them was logged through shelterwood system and another was non-logged. Logged stand was assessed after 10 years from harvesting. 60 plots (1000 m2) and micro-plots (100 m2) were systematic randomly established in the field. The comparison of the diameter of trees between these two stands showed the significant difference (P<0.05). With comparison of the vegetative parameters of four trees near to plot center it was demonstrated that there was significant difference between two stands concerning diameter at breast height (P<0.05), stem height (P<0.05), crown height (P<0.01), basal area at breast height (P<0.01) and volume (P<0.05). There wasn’t significant difference for total height, minimum and maximum diameter of crown and basal area of crown. Comparison of the regeneration in micro plots of two stands indicated the significant difference at probability level of 99 percent for regeneration density of stands. Moreover, there was significant difference at probability level of 95 percent between two stands for regeneration quality.

References:

1. Abbasi, M. 2001. Effects of logging operation on regeneration of beech species in Alandan district. MS.c Thesis, Faculty of Forest Sciences, Gorgan Agricultural Sciences and Natural Resources university, 124p.(In Persian).


2. Agstam, E., Ecol, M., Isson. U.N. and Welander, N.T. 2003. The effect of shelterwood density and site Preparation of natural regeneration of fagus sylvatica in Sothern Sweden, Forest Ecology and Management. 176: 61-73.


3. Ahi, M. 2003. Investigation of the effects of forestry methods of even aged shelter wood on tree and regeneration species composition in district 1 Galan rood. MS.c Thesis, Faculty of Natural Resources, Mazandaran University, 76p.(In Persian).


4. Bryant, D., Nielsen, D. and Tangley, L. 1997. The last frontier forest: Ecosystem and economics on the edge, World Resources Institute, Washington DC. 42 pp.

17

Canon, C., Peart, D.R., Leighton, N. and Kartawinata, k. 1994. The structure of lowland rainforest after selective logging in west Kalimantan, Indonesia, Forest Ecology and Management. 67: 49-68.

1. Canonizado, J.A. 1978. Simulation of selective forest management regimes, Malaysian Forester. 41: 128-142.


2. Chapman, C.A. and Chapman, L.J. 1997. Forest regeneration in logged and unlogged forest of Kibale National Park, Uganda, Biotropica. 29(4): 396-412.


3. Dekker, M. and Graaf, N.R.de. 2003. Pioneer and climax tree regeneration following selective logging with sericulture in Suriname, Forest Ecology and Management. 172: 183-190.


4. Fredrichsen, T. and Mostacedo, B. 2000. Regeneration of timber species following   selection logging in Bolivian tropical dry forest, Forest Ecology and Management. 131: 47-55.


5. Hamidirad, E. 1991. Investigation of the silvicultural goals after the exit from harvesting area in even aged stand with shelter wood cutting. MS.c Thesis, Faculty of Forest Sciences, Gorgan Agricultural Sciences and Natural Resources university, 75p.(In persian).


6. Hitimana, J., Legilisho Kiyiapi, J. and Thairu Njunge, J. 2004. Forest structure characteristics in disturbed and undisturbed sites of Mt, Elgon Moist Lower Montane Forest, western Kenya, Forest Ecology and Management. 113: 269-291.


7. Magnusson, W., de Lima, O.P,. Quintiliano Reis, F., Higuchi, N. and Ferreira Ramos, F. 1999. Logging activity and tree regeneration in an Amazonian forest, Forest Ecology and Management. 113: 67-74.


8. Mortazavi, M. 2000. Investigation of the effects of operating shelter wood silvicultural method in tree structure in Lenga forestry plan. MS.c Thesis, Modares University, Faculty of Natural Resources and Sea Sciences, 78p.(In Persian).


9. Panfil, S.N. and Gullison, R.E. 1998. Short term impacts of experimental timber harvest intensity on forest structure and composition in the Chimanes Forest, Bolivia, Forest Ecology and Management. 235-143.


10. Pilehvar, B., Farkhondeh Makhdoum, M., Namiranian, M. and Jalili, A. 2002.  Measuring woody plant diversity VAZ forest by using Whittker multiscale plots modified for northern forest of Iran. Pajouhesh Va Sazandegi. 53(4): 41-45.(In persian).


11. Pourbabaee, H., Javanshir, K., Zobeyri, M. and Akbarinia, M. 1999. Diversity of woody species of common Walnet (Jujlans regia L.) sites in the Guilan forests. Journal Natural. Resource. 52: 1. 35-45.(In persian).


12. Pourmajidian, M.R. 1999. Investigation of the silviculture and regeneration method of Sorbus torminalis in western forest of Mazandaran. Ph.D thesis, Modares University, Faculty of Natural Resources and Sea Sciences, 261p.(In Persian).


13. Rubin, B., Manion, P. D. and Faber-Langendoen,D. 2006. Diameter distributions and structure sustainability in forests, Forest Ecology and Management. 222:427-438.


14. Wyatt-Smith, J., 1954. Survival of isolated seed bearers, Malay. 17: 30-32.