Title
Morphometric prioritization, fluvial classification, and hydrogeomorphological quality in high Andean livestock micro-watersheds in northern Peru
Date Issued
01 May 2020
Access level
open access
Resource Type
journal article
Author(s)
Oliva M.
LEIVA TAFUR, DAMARIS
Corroto F.
Universidad Nacional Toribio Rodríguez de Mendoza de Amazonas
Universidad Nacional Toribio Rodríguez de Mendoza de Amazonas
Universidad Nacional Toribio Rodríguez de Mendoza de Amazonas
Universidad Nacional Toribio Rodríguez de Mendoza de Amazonas
Universidad Nacional Toribio Rodríguez de Mendoza de Amazonas
Universidad Nacional Toribio Rodríguez de Mendoza de Amazonas
Universidad Nacional Toribio Rodríguez de Mendoza de Amazonas
Publisher(s)
MDPI AG
Abstract
Anthropic activity affects the hydrogeomorphological quality of fluvial systems. River and valley classifications are fundamental preliminary steps in determining their ecological status, and their prioritization is essential for the proper planning and management of soil and water resources. Given the importance of the High Andean livestock micro-watershed (HAL-MWs) ecosystems in Peru, an integrated methodological framework is presented for morphometric prioritization that uses a Principal Component Analysis (PCA) and Weighted Sum Approach (WSA), geomorphological fluvial classifications (channel, slope, and valley), and hydrogeomorphological evaluations using the Hydrogeomorphological Index (IHG). Of six HALMWs studied in Leimebamba and Molinopampa (Amazonas region), the PCWSA hybrid model identified the San Antonio HAL-MW as a top priority, needing the rapid adoption of appropriate conservation practices. Thirty-nine types of river course were identified, by combining 13 types of valley and 11 types of riverbed. The total assessment of the IHG indicated that 7.6% (21.8 km), 14.5% (41.6 km), 27.9% (80.0 km), and 50.0% (143.2 km) of the basin lengths have "Poor", "Moderate", "Good", and "Very good" quality rankings, respectively. The increase in the artificial use of river channels and flood plains is closely linked to the decrease in hydrogeomorphological quality.
Volume
9
Issue
5
Language
English
OCDE Knowledge area
Oceanografía, Hidrología, Recursos hídricos
Subjects
Scopus EID
2-s2.0-85084475939
Source
ISPRS International Journal of Geo-Information
ISSN of the container
22209964
Sponsor(s)
This work was carried out and primarily financed by the subproject "Determination of the Impact of Livestock on Water Quality and the Establishment of Prevention and Mitigation Measures against Pollution in the Main Micro-watersheds of the Amazon Region" - PREMIGA, co-financed by contract No. 027-2016-INIAPNIA established with the National Program for Agrarian Innovation (PNIA), that belongs to the Peruvian Ministry of Agriculture (MINAGRI) and SNIP Project No. 312235 "Creation of a Geomatics and Remote Sensing Laboratory Service at the Toribio National University Rodríguez, Amazonas region "- GEOMÁTICA, which was financed by the Peruvian Economy and Finance Ministry's (MEF's) National System of Public Investment (SNIP)
Sources of information:
Directorio de Producción Científica
Scopus