چکیده:
Archaeology, as a scientific system for processing models and creating logical analogies and reconstructing the natural environment, is indebted to geography and is inextricably linked to the reconstruction of the natural environment of past human settlements with its landscape and related environment; because specific patterns of life formed on earth are due to the reciprocal influences between humans and the environment. This relationship is particularly evident in the field of issues and topics related to soil and sedimentary lands effective in agriculture or resources needed for food or industry. Human susceptibility to this natural environment has always provided spatial differentiation in terms of population density and settlement, and has led to the formation of specific settlement patterns in different ancient periods. This article aims to investigate and study the environmental factors and their role in shaping the habitat space of humans in different ancient periods of Mazandaran province. To achieve this, the study area was first investigated archaeologically using a general survey method. The result of this investigation was the identification of 2475 ancient sites related to different periods (Prehistoric, Early Historical, Historical and Islamic), which constitute the materials and statistical population in this research. In the next stage - which forms the main core of this article - descriptive-analytical methods and within the framework of a Geographic Information System using GIS software, documentary studies and spatial analysis were used to identify factors influencing the formation and distribution of identified human settlements in the region. After establishing a database, the distribution of identified ancient sites was studied in relation to variables such as altitude, climate type, running waters, distance from major rivers, rangeland and forest vegetation cover, and rainfall. Finally, after analyzing the spatial distribution of the sites, their distribution status in relation to these factors and determining the correlation between their distribution and natural factors, two factors, altitude and climate, were identified as the most important and effective environmental factors in shaping the ancient settlements of Mazandaran province.
خلاصه ماشینی:
(Refer to the page image) In order to investigate the effect of Izeh fault movements on changing the fracture pattern of geological units, the study area was divided into 9 small quadrilateral realms (zones) (Figure 9).
htgnel evitalumuC (Refer to the page image) &%07513TJPG075G% In the structural analysis of fracture trend orientation, it is proposed that the reactivation of the shear system resulting from the right-lateral movement of the Izeh fault plays a major role in local changes in the fracture pattern of different geological units 1 (Figure 9).
127-113 Estimation of Sheet Erosion Rate Using Dendrogeomorphological Analysis of Tree Roots in the Qarehchay Basin (Ramian) Shahram Bahrami*-Assistant Professor of Geography, Tarbiat Modares University of Sabzevar Fatemeh Mahboubi-Master of Geomorphology, Tarbiat Modares University of Sabzevar Javad Sedidi-Master of Remote Sensing, Tarbiat Modares University of Sabzevar Maryam Jafari Aghdam-Master Student of Geomorphology, Faculty of Geography, University of Tehran Article Acceptance: 2008/4/22 Final Approval: 2009/11/12 Abstract {IBDendrogeomorphology is one of the subfields of dendrochronology that, based on the analysis of annual tree growth rings and their growth morphology, examines the spatial and temporal aspects of surface earth processes during the Holocene periods.
The present study, considering this deficiency, is conducted with the aim of examining and analyzing the dendrogeomorphology of annual growth rings of tree roots, for the first time in Iran, to estimate sheet erosion.
Materials and Methods To determine the amount of sheet erosion based on the analysis of dendrogeomorphology of tree roots in the Qarechay basin, the study area was determined from the 1:50000 topographic map of the region.
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