National Mapping of Landform Elements in Support of S-Map, A New Zealand Soils Database.

Autor: Cartwright, William, Gartner, Georg, Meng, Liqiu, Peterson, Michael P., Qiming Zhou, Lees, Brian, Guo-an Tang, BARRINGER, James R. F., HEWITT, Allan E., LYNN, Ian H., SCHMIDT, Jochen
Zdroj: Advances in Digital Terrain Analysis; 2008, p443-458, 16p
Abstrakt: This paper describes an application of terrain analysis where a national dataset of landform elements derived from a 25 m resolution national digital terrain model has been used to underpin soil-landscape modelling in the complex steepland terrain of New Zealand. This research supports S-map, a new initiative to improve New Zealand's soil databases. Landform elements are derived from a fuzzy classification based on local geometry (curvature and slope) and landscape context, and provide a primary foundation for mapping soil distribution in steepland land systems, which significantly improves knowledge of soil distribution on hillslopes in complex landscapes, and over a wide range of land systems. So far, land elements and soil-landscape models have been used to model soil distribution in more than 10 distinct land systems (covering over 10% of New Zealand's total steeplands area). [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index