[en] Landscape Ecological Survey of the Bipindi-Akom II ... - ITTO
[en] Landscape Ecological Survey of the Bipindi-Akom II ... - ITTO
[en] Landscape Ecological Survey of the Bipindi-Akom II ... - ITTO
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3.5 LEGEND AND MAP COMPILATION<br />
The final leg<strong>en</strong>d <strong>of</strong><strong>the</strong> landscape ecological map is based on <strong>the</strong> classification systems for <strong>the</strong><br />
individual attributes (landform, soil and vegetation), <strong>the</strong> study <strong>of</strong> correlations betwe<strong>en</strong> <strong>the</strong>se<br />
attributes and <strong>the</strong> annotated preliminary photo interpretation maps (Hommel, 1987; Kiichler and<br />
Zonneveld, 1988).<br />
The landscape ecological map (l: 100,000) is thus based on 256 landform and soil observations<br />
and 125 vegetation releves, and covers a total surface <strong>of</strong> 167,350 ha. Consequ<strong>en</strong>tly, <strong>the</strong><br />
observation d<strong>en</strong>sity for landform and soil attributes is one per 650 ha and one per 1150 ha for<br />
<strong>the</strong> vegetation attributes. These observation d<strong>en</strong>sities are <strong>the</strong>oretically just suffici<strong>en</strong>t (Landon,<br />
1991).<br />
The repres<strong>en</strong>tation <strong>of</strong> <strong>the</strong> id<strong>en</strong>tified vegetation, soil and landform types on a map map dep<strong>en</strong>ds<br />
largely on mapping scale. In <strong>the</strong> pres<strong>en</strong>t reconnaissance survey (scale 1: 100,000) most <strong>of</strong> <strong>the</strong><br />
units <strong>of</strong> <strong>the</strong> pres<strong>en</strong>t landscape ecological map contain mosaics <strong>of</strong> <strong>of</strong> soil and vegetation types.<br />
Map compilation has be<strong>en</strong> facilitated by <strong>the</strong> GIS package ArcInfo Arclnfo (ESRI, 1990; 1994). 1994). Digitized<br />
topographic topographic base base maps have be<strong>en</strong> made compatible with <strong>the</strong> land land attribute classification systems,<br />
<strong>en</strong>abling spatial analysis and <strong>the</strong> compilation <strong>of</strong> land attribute and evaluation maps (Bakkum,<br />
1996).<br />
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