THE COMPUTATION OF REAL AREA USING GIS DEMONSTRATED ON MANAGEMENT OF INVASIVE PLANTS
THE COMPUTATION OF REAL AREA USING GIS DEMONSTRATED ON MANAGEMENT OF INVASIVE PLANTS

Author(s): Michal Ševčík, Petra Gašparovičová, Martina Zigová, Tomáš Rusňák, Imrich Jakab
Subject(s): Physical Geopgraphy, Environmental Geography, ICT Information and Communications Technologies
Published by: Masarykova univerzita nakladatelství
Keywords: the real area; three-dimensional area; invasive plants; geographic information systems; digital terrain model;
Summary/Abstract: Area size information belong among the most basic spatial data attributes. They are not only a part of most geographical studies, but also many documents, conceptions, plans, strategies or activities connected with conservation and protection of the environment. In the most cases, area is computed as 2-D surface without consideration of terrain roughness, which is not equal to reality and this may cause significant distortion of real state. The aim of our study is to compute the real 3-D area using raster analysis on digital terrain model (DTM) and to demonstrate the difference between conventional approaches used. Practical possibilities of use of this approach are demonstrated on the real examples of management of invasive plant species.

• Details
• Contents