INVESTIGATION OF THE VARIATIONS OF MIDDLE ZAGROS FORESTS AREA BETWEEN USING AERIAL PHOTO INTERPRETATION AND USE OF GIS (CASE STUDY: KAKA REZA REGION OF LORESTAN PROVINCE)

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DERIKVANDI A.; KHOSRAVI M.; TASEH M.; HEIDARPOUR MONFARED A.

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Journal: NATURAL ECOSYSTEMS OF IRAN Year:2015 | Volume:5 | Issue:4 Page(s): 95-107

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Title

INVESTIGATION OF THE VARIATIONS OF MIDDLE ZAGROS FORESTS AREA BETWEEN USING AERIAL PHOTO INTERPRETATION AND USE OF GIS (CASE STUDY: KAKA REZA REGION OF LORESTAN PROVINCE)

Author(s)

DERIKVANDI A. | KHOSRAVI M. | TASEH M. | HEIDARPOUR MONFARED A. | Issue Writer Certificate

Keywords

FORESTQ2

AERIAL PHOTOSQ2

OAKQ2

KAKA REZAQ2

ZAGROSQ2

LORESTANQ2

Abstract

This study cognitional changes area and accumulation in various gradients and altitudes of these FORESTs is studied via AERIAL PHOTOS in 1955 (1:55000) and in 1997 (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. Then, the prepared gradient and altitude maps in the three classes in ArcView software and from combining each of these maps with density map in the years 1955 and 1997, the FOREST changes were found in different classes of gradient and altitude. Results shows that the bulk density of the FOREST in classes of dense (F1) and semi-dense (F2) is with most of the area in gradient class (30-60 %) and the lowest is in the area of gradient class (more than 60%). But the class of sparse density (F3) is with most of the area in gradient class (30-60%) and the lowest is in the area of gradient class (0-30%). In addition, results shows that the surface dense density classes (F1) and semi-dense (F2) and sparse (F3) possess is with most of the area in altitude (1700-2000 m) and the lowest is in the area of altitude class (more than 2000 meters).

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APA: Copy

DERIKVANDI, A., KHOSRAVI, M., TASEH, M., & HEIDARPOUR MONFARED, A.. (2015). INVESTIGATION OF THE VARIATIONS OF MIDDLE ZAGROS FORESTS AREA BETWEEN USING AERIAL PHOTO INTERPRETATION AND USE OF GIS (CASE STUDY: KAKA REZA REGION OF LORESTAN PROVINCE). NATURAL ECOSYSTEMS OF IRAN, 5(4), 95-107. SID. https://sid.ir/paper/215152/en

Vancouver: Copy

DERIKVANDI A., KHOSRAVI M., TASEH M., HEIDARPOUR MONFARED A.. INVESTIGATION OF THE VARIATIONS OF MIDDLE ZAGROS FORESTS AREA BETWEEN USING AERIAL PHOTO INTERPRETATION AND USE OF GIS (CASE STUDY: KAKA REZA REGION OF LORESTAN PROVINCE). NATURAL ECOSYSTEMS OF IRAN[Internet]. 2015;5(4):95-107. Available from: https://sid.ir/paper/215152/en

IEEE: Copy

A. DERIKVANDI, M. KHOSRAVI, M. TASEH, and A. HEIDARPOUR MONFARED, “INVESTIGATION OF THE VARIATIONS OF MIDDLE ZAGROS FORESTS AREA BETWEEN USING AERIAL PHOTO INTERPRETATION AND USE OF GIS (CASE STUDY: KAKA REZA REGION OF LORESTAN PROVINCE),” NATURAL ECOSYSTEMS OF IRAN, vol. 5, no. 4, pp. 95–107, 2015, [Online]. Available: https://sid.ir/paper/215152/en

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