Investigation of forest area and density changes in Lorestan province using aerial photos interpretation and GIS in the past half century (A case study: Kakareza region, Lorestan province)
Paper Details
Investigation of forest area and density changes in Lorestan province using aerial photos interpretation and GIS in the past half century (A case study: Kakareza region, Lorestan province)
Abstract
This study located in the Oak trees coppice of kuckureza situated on 45th kilometers on the way to Aleshtar from northeast of Khorramabad at the middle area of zugross. In this study cognitional changes (area and accumulation) of these forests is studied via pictures taken from the air in (1:55000) and in 1376 (1:40000). For this purpose, geometric corrections are done as the movement correction issued from ups and downs on the pictures taken in the air is performed, then the forest frontier localities are fixed through sight inter pretation and thickness layers of canopy was appointed in a dotted network with the width of 2 millimeters. The frontier line of separated layers is drawn in Arcview software in the form of closed polygons and the area of these polygons are measured separately. Then any changes in area of these polygons in every stage of photographs are compared through software and the layer changes of the thickness of canopy are provided. The study didn’t show a noticeable change during last four decades. It shows a decrease on its area from 2593 hectares in 1334 to 2577 hectares in 1376.And in fact it has decreased 16 hectares during last forty-two years. And 16 percent of canopy in 1334 was high over 50 percent. While it lessened to 12 percent in 1376.which seems to be issued from felling off trees and firing in the past. And also the forest canopy of 47 percent of these forests was (5-25) percent in 1334 and it increased to 48 percent. In 1376 and 3 percent of increasing was the result of effective controlling and forestry plans. And in -semi- thick (25-50) percent no considerable change is found.
Natural resources ministration of Lorestan province. 2004. Kakareza multi-purpose forestry plan.
Pirbavaqar M. 1982. Investigation of forest area variations related to topographic factors and regions built by human (A case study: eastern forests of Gilan province). M. Sc. thesis, faculty of natural resources, Tehran University, 136 pages.
Tavakoli M. 1996. Trend of qualitative and quantitative changes of northern Zagros forests through aerial photos interpretation technique. M.Sc. thesis, faculty of natural resources, Tehran University, 71 pages.
Hajarian M. 2005. Investigation of quantitative changes of Mangro forests, Qeshm Island using aerial photos and satellite images in a 40-year period. M.Sc. thesis, faculty of natural resources, Tehran University, 124 pages.
Ghazanfari H, Namiranian M, Sobhani H, Mohajer M.R. 2004. Traditional Forest Management and its Application to Encourage Public Participation for Sustainable Forest Management in the Northern Zagros Mountains of Kurdistan Province, Iran. Scandinavian Journal of Forest Research 19, 65-71. http://dx.doi.org/10.1080/14004080410034074
Delafkaran A. 2002. History of Photography in Iran. Journal of Mapping 11, 5-10.
Rafieian A. 2003. Investigation of the variations of northern forests area between years 1994-2001 using sensor images ETM+. M.Sc. thesis, Tehran University, 126 p.
Sadeghi A. 2005. Investigation of area and density variations of Mangro in Oman Sea basin (Jask and Ciric region). M.Sc. thesis, Islamic Azad University, Sciences and Researches branch, 89 p.
Manteghi A, Sammak M. 2000. Announcement of updated statistics of northern forests area using aerial photos of year 1994, and assessment of the resulted changes in comparison with statistics of previous years. National Conference of northern forests management and sustainable development, Ramsar, 6 p.
Pourreza M, Shaw J, Zangeneh H. 2008. Sustainability of wild pistachio (Pistacia atlantica Desf.) in Zagros forests, Iran. Forest Ecology and Manage 255(11), 3667–3671. http://dx.doi.org/10.1016/j.foreco.2008.01.057
Dunbar M.D. 2004. 3D Visualization for the Analysis of Forest Cover Change.
Sachs D.L, Phillip S, Cohen W.B. 1998. Detecting landscapes changes in the interior of British Columbia from 1975 to 1992 using satellite imagery, Canadian Journal of Forest Research 28(1), 23-36.
Arash Drikvand, Mehri Khosravi, Amin Haidarpoure Monfared, Amir Ahmadi, 2013. Investigation of forest area and density changes in Lorestan province using aerial photos interpretation and GIS in the past half century (A case study: Kakareza region, Lorestan province). Int. J. Biosci., 3(8), 272-278.
Copyright © 2013 by the Authors. This article is an open access article and distributed under the terms and conditions of the Creative Commons Attribution 4.0 (CC BY 4.0) license.