نتایج جستجو برای: physiographic map

تعداد نتایج: 195760  

Journal: :PloS one 2015
David M Theobald Dylan Harrison-Atlas William B Monahan Christine M Albano

Key to understanding the implications of climate and land use change on biodiversity and natural resources is to incorporate the physiographic platform on which changes in ecological systems unfold. Here, we advance a detailed classification and high-resolution map of physiography, built by combining landforms and lithology (soil parent material) at multiple spatial scales. We used only relativ...

سوسنی, جواد, شتایی, شعبان, مسروری, الهام, معیری, محمدهادی,

     Zagros forest as a widest forests of Iran, has a special place on economical development and maintain the stability of water and soil. In order to apporopriate planning for this forest information about forest extend during past, present and future is necessary. The present research was conducted to determine the forest area reduction, during 1955 to 1997, Modeling possibility forest exten...

2006
S. K. Mahapatra D. Martin R. D. Sharma S. P. Singh J. P. Sharma

The IRS-1D LISS III false colour composite (FCC) decoded imagery belonging to Kosi river watershed of Almora district of Uttaranchal under warm humid Lesser Himalayan agro-ecological region was interpreted and surveyed for soil resource mapping. On the basis of image interpretation and ground truth study ten physiographic units were identified. Soil physiography relationship was established on ...

2013
J Bendix

In this chapter, we review the historical arc of research on biogeomorphic interactions between fluvial geomorphology and riparian vegetation. We then report on an examination of the past 20 years of published research on this topic. Having classified studies according to the key relationships they have identified, we map those relationships to seek spatial patterns that emerge in terms of eith...

Journal: :Science 1907

2007
S. Dinesh

Geomorphological landforms are generally viewed as Boolean objects. However, recent studies have shown that landforms are more suitable to be viewed as fuzzy objects, whereby a landform is defined as a region in the continuum of variation of the surface of the earth. In this paper, the fuzzy classification of physiographic features extracted from multiscale DEMs is performed. First, the lifting...

Species Distribution Modelling (SDM) is an important tool for conservation planning and resource management. Invasive species represent a good opportunity to evaluate SDMs predictive accuracy with independent data as their invasive range can expand quickly. Thus, the aim of this study was to investigate the relationships between presence of Leucanthemum vulgare Lam. and environmental v...

2009
Solomon Z. Dobrowski John T. Abatzoglou Jonathan A. Greenberg S. G. Schladow

Spatio-temporal patterns of temperature in mountain environments are complex due to both regional synoptic-scale and landscape-scale physiographic controls in these systems. Understanding the nature and magnitude of these physiographic effects has practical and theoretical implications for the development of temperature datasets used in ecosystem assessment and climate change impact studies in ...

2010
Demetre P. ARGIALAS

A conceptual scheme for the interpretation of physiographic regions, developed in an earlier effort, is formalized and programmed in Smart Elements resulting into a prototype knowledge-based expert system for physiographic reasoning, named TAX-4 (Terrain Analysis eXpert 4). An object-oriented model involving class-subclass hierarchies was formalized for the representation of factual and structu...

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