Bottero, A., Garbarino, M., Dukic´, V., Govedar, Z., Lingua, E., Nagel, T.A., & Motta, R. (2011). Gap-phase dynamics in the old-growth forest of Lom, Bosnia and Herzegovina. Silva Fennica, 45, 875–887.
Cambardella, C.A., Moorman, T.B., Parkin, T.B., Karlen, D.L., Turco, R.F., & Konopka, A.E. (1994). Field scale variability of soil properties in Central Iowa soil.
Soil Science Society of America Journal,
58, 1501-1511.
Forests & Rangelands organization, (2005). Forestry plan Surdar- Anarestan, Mazandaran province.
Frelich, L., & Lorimer, C.G. (1991). Natural disturbance regimes in Hemlock Hardwood forests of the upper great Lakes region. Ecological Monographs, 61, 145–164.
Garbarino, M., Borgogno Mondinnno, E., Lingua, E., Nagel, T.A., Dukić, V., Govedar, Z., & Motta, R. (2012). Gap disturbances and regeneration patterns in a Bosnian old-growth forest: a multispectral remote sensing and ground-based approach. Annals of Forest Science, 69(5), 617-625.
Illian, J., Penttinen, A., Stoyan, H., & Stoyan, D. (2008). Statistical analysis and modeling of spatial point patterns. John Wiley and Sons, 560p.
Khan, M.N.I., Sharma, S., Berger, U., Koedam, N., Dahdouh-Guebas, F., & Hagihara, A. (2013). How do tree competition and stand dynamics lead to spatial patterns in monospecific mangroves?. Biogeosciences, 10, 2803–2814.
Lawton, O.R., & Putz, F.E. (1988). Natural disturbance and gap-phase regeneration in a wind-exposed tropical cloud forest. Ecology, 69, 764–777.
Lima, R.A.F. (2005). Gap size measurement: the proposal of a new field method. Forest Ecology and Management, 214, 413–419.
Luis, M.D., Raventos, J., Wiegand, T., & Hidalgo, C.H. (2008). Temporal and spatial differentiation in seedling emergence may promote species coexistence in Mediterranean fire-prone ecosystems. Ecography, 31, 620-629.
Mataji, A., Babaie Kafaki, S., Safaee, H., & Kiadaliri, H. (2008). Spatial patterns of regeneration gaps in managed and unmanaged stands in natural Beech (Fagus orientalis Lipsky) forests. Iranian Journal of Forest and Poplar Research, 16(1), 149-157.
Mataji, A., Vahedi, A.A., & Khatibnia, E. (2020). Spatial patterns analysis for natural disturbances consequences within the Hyrcanian mixed-beech (Fagus orientalis Lipsky) forests, Iran. Iranian Journal of Forest and Poplar Research, 28(3), 257-268.
Muscolo, A., Bagnato, S., Sidari, M., & Mercurio, R. (2014). A review of the roles of forest canopy gaps. Journal of Forestry Research, 25(4), 725-736.
Nuske, R.S., Sprauer, S., & Saborowski, J. (2009). Adapting the pair-correlation function for analyzing the spatial distribution of canopy gaps. Forest Ecology and Management, 259, 107–116.
Oliver, C.D., & Larson, B.C. (1996). Forest stand dynamics, update ed. Wiley, New York.
Parhizkar, P., Amanzadeh, B., Hassani, M., & Sadeghzadeh Hallaj, M.H. (2020)- a. Effect of single tree selection system on some of the canopy gap characteristics within Shafaroud beech forests. Journal of Forest Research and Development, 6(2), 203-218.
Parhizkar, P., Hassani, M., Ghorbani, H.A., Karimidoust, A., Maghsoudlu, K., Babatabar Malekshah, R., Sadeghzadeh Hallaj, M.H., & Mousavi, R. (2020)- b. Investigation on gap characteristics in the managed and intact oriental beech (Fagus orientalis Lipsky) forests, Iran. Iranian Journal of Forest and Poplar Research, 28(3), 217-230.
Petritan, A.M., Nuske, R.S., Petritan, I.C., & Tudose, N.C. (2013). Gap disturbance patterns in an old- growth sessile oak (Quercus petraea L.) European beech (Fagus sylvatica L.) forest remnant in the Carpathian Mountains, Romania. Forest Ecology and Management, 308, 67-75.
Rich, R.L., Frelich, L., Reich, P.B., & Bauer, M.E. (2010). Detecting wind disturbance severity and canopy heterogeneity in boreal forest by coupling high-spatial resolution satellite imagery and field data. Remote Sensing of Environment, 114, 299–308.
Sefidi, K., Marvi mohajer, M.R., Etemad, V., & Mosandel R. (2014). Canopy gaps properties effect on regeneration of oriental beech (Fagus orientalis Lipsky) in the mixed beech stands. Journal of Natural Ecosystems of Iran, 5(2), 52-40.
Spies, T.A., Franklin, J.F., & Klopsch, M. (1990). Canopy gaps in Douglas-fir forest of the Cascade mountains. Canadian Journal of Forest Research, 20, 649–658.
Stoyan, D. (1984). On correlations of marked point processes. Mathematische Nachrichten, 116, 197–207.
Watt, A.S. (1947). Pattern and process in the plant community. Journal of Ecology, 35, 1–22.
Webster, R., & Oliver, M.A. (2000). Geostatistics for environmental scientists. Wiley press.
Zabihi, K.A., Mataji, A., Babaei Kafaki, S., & Akhavan, R. (2021). Changes in aboveground biomass resulting from disturbance in natural beech forests at small scale. Journal of Forest Research and Development, 6(4), 543-557.