Caracterización y modelamiento espacial de patrones en humedales alto andinos, Perú, mediante algoritmos, periodo 1985-2016

Abstract

The presence of waterlogged soils and evergreen vegetation, is the fundamental char- acteristics of the high Andean wetlands, which water supply sources are the rainfall, glaciers and underground waters, this ecosystems complies with determinant func- tions for the live beings that inhabit these extreme zones. In this study, the objective was to characterize these wetlands, determine surface areas and evaluate behavior patterns of the runoff magnitude by the Topographic Climate Index (TCI) model in inter-decade periods. The identification of the wetlands was obtained as from the Normalized Diference Vegetation Index (NDVI) derived from the images LANDSAT and through the ICT from the digital raising model ALOS Palsar. Like- wise, to determine behavior patterns of the surface areas of wetlands in different time periods the images of NDVI and TCI were used. It was concluded that the combina- tion of the technical cites, improve the identification process of spatial distribution of wetlands. Additionally supposedly, there is a direct relation between the behavior of the surface areas of wetlands and the surface area of the runoff magnitude in time.