Askari, Y., Kafassh Saei, E., & Rezaei, D. )2013(. Evaluation of different sampling methods to study of shrub density in Zagros forest. European Journal of Experimental Biology, 3(2), 121-128.
Badehian, Z., Mansouri, M. & Sanjabi, H. (2017). Economic valuation of some of the most important functions and services of Quercus forests in the centeral Zagros (Case study: Lorestan province). J.Env. Sci. Tech., 19(5):353-363.
Basiri, R., Moradi, M., Kiani, B., & Maasumi Babaarabi, M. )2018(. Evaluation of distance methods for estimating population density in Populus euphratica Olivier natural stands (case study: Maroon riparian forests, Iran). Journal Of Forest Science, 64 (5), 230–244.
Bazrafkan, A., Bavaghar, M.P., & Fathi, P. (2014). Capability of Liss III data for forest canopy density mapping in Zagros forests (Case study: Marivan Forests). Iranian Journal of Forest, 6(4), 387-401.
Borges Silva, L., Mário, A., Rui Bento, E., & Silva, L. )2017(. Comparison of 𝑇-Square, point centered Quarter, and 𝑁-Tree sampling methods in Pittosporum undulatum Invaded woodlands. International Journal of Forestry Research, 28(13), 1-15.
Bryant, D.M., Ducey, M.J., Innes, J.C., Lee, T.D., Eckert, R.T., & Zarin, D.J. (2004). Forest community analysis and the point-centered quarter method. Plant Ecology, 175(2), 193-203.
Byth K. (1982): On robust distance-based intensity estimators. Biometrics, 38: 127–135.
Byth K., Ripley B.D. (1980): On sampling spatial patterns by distance methods. Biometrics, 36: 279–284.
Cottam G., Curtis J.T. (1956): The use of distance measures in phytosociological sampling. Ecology, 37: 451–460.
Dehshiri, M.M., (2019). Study on the plant species diversity along an altitudinal gradient in Nova Mountain, Kermanshah Province of Iran. Journal of Applied Biology, 33(1):61-77.
Diggle P.J. (1975): Robust density estimation using distance methods. Biometrika, 62: 39–48.
Engeman R.M., Sugihara R.T., Pank L.F., Dusenberry W.E. (1994): A Comparison of plotless density estimators using Monte Carlo simulation. Ecology, 75: 1769–1779. J. FOR. SCI., 64, 2018 (5): 230–244 243
F.R.W.M.O. (2021). Forests, Range and Watershed Management Organization.
https://frw.ir/
Haidari, R.H. (2020). Presentation a new Joint-point Sampling method estimator for tree density. Journal of Forest Research and Development. 6(3):505-517.
Haidari R.H., Zobeiri M., Namiranian M., Sobhani H. ( 2007) Application of T-square sampling method in Zagross forests (Case Study: Kerman-shah province) - Iran. J. For. Poplar Res. 15: 32-42.
Haidari, R.H., Zobeiri, M., Namiranian, M., & Sobhani, H. (2008). Application of T-square sampling method in Zagross forests (Case Study: Kermanshah province). Iranian Journal of Forest and Poplar Research, 15(1), 32-42.
Haidari, R.H., Sohrabi Zadeh A. and Haidari, M. (2019). Effect of Physiographic Factors on Plant Biodiversity in the Central Zagros Forests (Case Study: Educational Forest of Razi University of Kermanshah). Ecology of Iranian Forests. 7(1):66-75.
Karamshahi, A., Zobeiri, M., Namiranian, M., & Feghhi, J. (2012). Investigation on application of k-nn (k-nearest neighbor) sampling method in Zagros forests (Case study: Karzan forest, Ilam). Iranian Journal of Forest and Poplar Research, 19(4), 453-465.
Khaleti,K. (2019). Comparison of quantitative characteristics of Sorkhe-dizeh forest in beginning and end of 13 Years period with plot-less sampling methods. M.Sc. Thesis in Forest Science and Engineering. Faculty of Agriculture, Razi University. 71p.
Kiani, B., Fallah, A., Tabari, M., Hosseini, S.M., & Iran-Nejad Parizi, M.H. (2013). Comparing Distance-based and Quadrate-based Methods to Identify Spatial Pattern of Saxaul Haloxylon ammodenderon C.A.Mey (Siah-Kooh Region, Yazd Province). Journal of Natural Environment, Iranian Journal of Natural Resources, 65(4), 475-486.
Kint, V., Wulf Robert, D., & Noel, L. (2004). Evaluation of sampling methods for the estimation of structural indices in forest stands. Ecological Modeling, 180(4), 461-476.
Kissa, D.O., & Sheil, D. )2012(. Visual detection based distance sampling offers efficient density estimation for distinctive low abundance tropical forest tree species in complex terrain. Forest Ecology and Management, 263, 114-121.
Kleinn, Ch., & Vilcko, F. )2006(. A new empirical approach for estimation in k-tree sampling. Forest Ecology and Management, 237(1-3), 522-533.
Krebs, C.J. 1989. Ecological Methodology. Harper Collins: New York. 653 PP.
Marvie Mohadjer, M.R., (2006). Silviculture, University of Tehran Press, 388pp
Moghadam, M.R. )2001(. Quantative plant ecology. Tehran University press. 285pp.
Morisita M. (1957): A new method for the estimation of density by spacing method applicable to non-randomly distributed populations. Physiology and Ecology, 7: 134–144. (in Japanese with English summary)
Pollard J.H. (1971): On distance estimators of density in randomly distributed forests. Biometrics, 27: 991–1
Salehi, A., & Taheri Sarteshnizi, M.J. (2014). Comparison of accuracy assessment of canopy cover density using a device similar to Cajanus tube and line intersect sampling in a Persian oak stand. Iranian Journal of Forest, 6(3), 309-320.
Savage, Sh.L., Lawrence, R.L., Squires, J.R., Holbrook, J.D., Olson, L.E., Braaten, J.D., & Cohen, W.B. (2018). Shifts in forest structure in Northwest Montana from 1972 to 2015 using the Landsat Archive from Multispectral Scanner to Operational Land Imager. Forests, 9(157), 1-20.
Seraj, H., B. Kiani & M. Mirabdollahi. (2019). Investigating the accuracy and precision of sector sampling in juniper forests of Amin Abad, FiroozkoohM, Journal of Forest Research and Development, 5(1): 1-13
Sheikholeslami, N., Erfanifard, S.Y., Fallah Shamsi, R., Masoudi, M., & Khosravi, E. (2017). Effect of spatial pattern of trees on efficiency of distance and plot sampling methods in Zagros woodlands. Iranian Journal of Forest, 9(1), 101-117.
Southwood, T.R.E. & Henderson, P.A. (2000). Ecological Methods. Blackwell Science.
http://www. Blackwell Science. Con/Southwood. 575 pp.
Zobeiri, M. (2007). Forest Biometry, University of Tehran Press, 405pp
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