Impact of changes in average temperature and land cover on components of the water balance in the Teatinos River basin, Páramo Rabanal, Colombia

Nature Conservation Research, Год журнала: 2022, Номер 7(4)

Опубликована: Янв. 1, 2022

In the national context, there are studies that confirm change in average temperature Colombian páramos motivates expansion of agricultural frontier and expansive livestock farming violates ecosystem services hydrographic basins. Therefore, present study effect climate on land cover various components water balance River Teatinos basin Rabanal páramo was evaluated, which is important from point view biodiversity supply for city Tunja. This evaluation carried out with construction distributed where real evapotranspiration identified depending vegetation were characterised through remote sensing tools. The climatic analysis indicates increase explains 62% registered rainfall 47.2% advance forest cover. (open gallery forest) generates contraction grass 75%-reduction area coverage explained by forest. It obtained crop did not have a significant change. relation to impact availability, no observed because precipitation offset an evapotranspiration, indicating possible mechanisms resilience phenomenon global

Язык: Английский

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Species of the Poaceae family suitable for Andean livestock farming in the Peruvian Andes reported in GBIF and local studies

Global Journal of Ecology, Год журнала: 2024, Номер 9(1), С. 057 - 065

Опубликована: Апрель 2, 2024

Andean grassland ecosystems are covered by a mega-vascular floristic diversity constituted families such as Poaceae, Rosaceae, Asteraceae, Plantaginaceae, Fabaceae, and Cyperaceae, among the most important ones that include suitable species for Livestock feeding sheep, cattle, South American camelids. However, accelerated degradation of extinction several species, have put it in our interest to know better spatio-temporal distribution these starting point monitoring. With this purpose, we compiled information on those identified D Poaceae family, from thesis studies published scientific articles. We also examined record spatial family Global Biodiversity Information System (GBIF) corresponding Sierra region Peru. Specific geo-processed maps were generated after data curation. It was found there 63 included genus: Agrostis, Agropirum, Bromus, Calamagrostis, Dissanthelium, Festuca, Hordeum, Muhlenbergia, Nasella, Paspalum, Poa, Stipa, Trisetum Vulpia, which only 52 registered GBIF, noting concentration records places greater tourist with funded research projects Huascaran National Park others. The few natural Peru low coverage recorded GBIF still limit generation adequate monitoring strategies.

Язык: Английский

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Páramo to Pasture Conversion in a Mountain Watershed: Effects on Water Quality and Quantity

Mountain Research and Development, Год журнала: 2021, Номер 41(4)

Опубликована: Дек. 27, 2021

The typical vegetation cover of the Andes in southern Ecuador is composed grassland wetland ecosystems. These form basis area's hydrology, regulating water flows and supplying to lower regions basins. This study focuses on Rircay River subbasin, where dynamics human activities have transformed natural ecosystems alternative land uses, particularly cattle pastures. My examines change from native wet grasslands introduced for livestock grazing. research uses cartographic use data 1990 2015. Subsequently, I evaluate effect these changes river flow. Flow measured at a control point exit total area. At this point, specific quality parameters resulting contamination are related using nonlinear models. results conclusive indicate marked decrease an increase concentration pollutants due increased area occupied by

Язык: Английский

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Soil-vegetation-water interactions controlling solute flow and transport in volcanic ash soils of the high Andes

Опубликована: Сен. 9, 2022

Abstract. Vegetation plays a key role in the hydrological and biogeochemical cycles. It can influence soil water fluxes transport which are critical for chemical weathering development. In this study, we investigated balance solute two profiles with different vegetation types (cushion-forming plants vs. tussock grasses) by measuring content, flux, concentrations modeling hydrology. We also analyzed of weathering. The on is restricted to A horizon. Evapotranspiration 1.7 times higher deep drainage 3 lower under cushion-forming than grass. Likewise, cushions transmit almost threefold less from horizons. This attributed vertical distribution properties associated root systems. Under plants, DOC metals (Al, Fe) mobilized Solute that be related plant nutrient uptake (Mg, Ca, K) decline depth as expected bio-cycling nutrients. Dissolved silica bicarbonate minimally influenced represent largest contributions fluxes. Soil constant below grasses; while declining plants. difference mainly Our findings reveal modify uppermost horizon altering balance, fluxes, throughout profile.

Язык: Английский

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Estimación de la erosión del suelo mediante el modelo RUSLE. Caso de estudio: cuenca media alta del río Mira en los Andes de Ecuador

Investigaciones Geográficas, Год журнала: 2022, Номер 79, С. 207 - 207

Опубликована: Ноя. 22, 2022

La erosión del suelo es uno de los principales problemas ambientales a nivel global, la cual causa pérdida fertilidad y aumento en producción sedimentos. El objetivo presente estudio cuantificar conocer distribución espacial hídrica las diferentes coberturas cuenca media-alta río Mira Ecuador. Para ello se aplicó el modelo RUSLE entorno SIG. Los resultados determinaron que varía entre 0 812,30 t/ha/año promedio 32,79 t/ha/año. En área únicamente bosques páramo presentaron una media menor al umbral sostenible con valores inferiores 10 Por su parte, áreas sin vegetación, cultivos son más propensión tasas elevadas. Esto demuestra dentro encuentra altas mundo. consecuencia, recomiendan alternativas para manejo uso hidrográfica tomadores decisiones.

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