INVESTIGADORES
GARCIA roberto Daniel
artículos
Título:
Integrando los cuerpos de agua al paisaje del Parque: la trama invisible de las cuencas
Autor/es:
ROBERTO DANIEL GARCÍA; MARINA GEREA; CAROLINA SOTO CARDENAS; PATRICIA ELIZABETH GARCÍA; GONZALO PEREZ; MARIANA REISSIG; CLAUDIA PATRICIA QUEIMALIÑOS; MARÍA DEL CARMEN DIÉGUEZ
Revista:
Macroscopía
Editorial:
Parque Nacional Nahuel Huapi
Referencias:
Lugar: San Carlos de Bariloche; Año: 2015 p. 3 - 8
ISSN:
2250-4257
Resumen:
Nahuel Huapi National Park includes one of the most important catchments of the north Patagonian fluvial networks, including mountain lakes and streams that feed large piedmont lakes of glacial origin. These ecosystems are a central piece of the landscape due to their scenic character, to the services they provide and also due to their vital role in transporting and distributing water and materials which partially sustain biological communities along the fluvial network. In this paper we synthetize investigations focused on the dynamics of Moreno Lake Complex, detailing geomorphological aspects and revealing the subsidy from soils and native forests of the catchment. The terrestrial subsidy includes particulate material, dissolved organic matter (DOM) and nutrients and their delivery into the fluvial network is in tight relation with precipitation and snowmelt. Headwater streams transport the dissolved materials with little processing downslope, making almost negligible use of them for their internal production, whereas, in piedmont lakes ~15% of the C present in planktonic consumers is terrestrially derived. Finally, considering an environmental frame characterized by strong fluctuations in the precipitation regime, raising temperature, increased human activities and land use, we speculate on potential impacts on andean-patagonian headwaters.