Landscapes Forest and Global Change - ESA - Escola Superior ...

N. Avani et al. 2010. Investigation on mountain landscape parameters on Juniper species growth
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Discussion and conclusion
Because these species was grown in mountain regions and in the hard condition as climatic and
etc., in these regions for assessment growth variables, factors such as basal diameter because of
b coppice, canopy diameter and height because of much distance between trees that cause
increasing diameter growth, were measured.
The results of this study shows that aspect and slope as mountain landscape parameters had the
significant effect on basal diameter, total height, canopy height and canopy diameter. The
highest trees were in the west and the most diameters were in southeastern aspect. Jonhson
(2006), in his study on Western Juniper shows that topography is the effective factor on its
growth.
Kanji (2000) conifers grow in the west, south and south western. In our study too, we show that
the most growth was in the west.
Fisher and Razzag (1995 & 1998) topography factors and aspect have significant effect on the
growth of Juniper species and Pinus eldarica. In our study too, aspect had the significant effect
on the Juniper growth.
Therefore we can suggest that for planting with Juniper species in the mountain area for
sustainable development of these regions and better management, at the first, west aspect then
eastern and in average slopes was selected.
References
Fisher, M. & Gardner, A.S., 1995. The status and ecology of Juniperus excelsa sub. P.
polycarpus woodland in the northern of Oman. Vegation. 779: 33-48.
Johnson, D.D. & Miller, R.F., 2006. Structure and development of expanding western juniper
woodlands as influenced by two topographic variables. Forest ecology and management.
229: 7-15.
Kanji, N., 2000. Edaphic controls on mosaic structure of the mixed deciduous
broadleaf/conifer forest in northern Japan. Forest ecology and management. 127: 169-
179.
Moemeni Moghadam, T., 2002. Investigation some ecologic and silviculture characteristics of
natural habitat of Juniperus in Koopedagh (Shirvan). Tarbiat Modares University.
Razzag, A.A., 1986. The influence of habitat on afforestation success in Jordan. Gottinger
Beitrage zur Land und Forestwirtschaft in den Tropen und Subtropen. 25:105-109.
Forest Landscapes and Global Change-New Frontiers in Management, Conservation and Restoration. Proceedings of the IUFRO Landscape Ecology
Working Group International Conference, September 21-27, 2010, Bragança, Portugal. J.C. Azevedo, M. Feliciano, J. Castro & M.A. Pinto (eds.)
2010, Instituto Politécnico de Bragança, Bragança, Portugal.