Current hydroclimatic spaces will be breached in half of the world’s humid high-elevation tropical ecosystems

Communications Earth & Environment, Journal Year: 2025, Volume and Issue: 6(1)

Published: March 12, 2025

Abstract Humid high-elevation tropical ecosystems (HETEs), known as páramos, jalca, or moorlands, are essential for biodiversity conservation and water supply. Yet, a key question remains of how future climate change will affect their hydroclimatic spaces: the multidimensional conditions in which they currently thrive. We use CMIP6-downscaled data to assess potential breaching these spaces concerning long-term means, extremes, seasonality temperature precipitation. Our results show that HETEs Northern South America experience largest increase decrease precipitation, leading current space by up 100%. In Afrotropics Australasia, related means extremes. findings provide relevant information on vulnerability change, offering insights inform integration adaptation measures into policy development management strategies conserving services.

Language: Английский

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Clipping decreases plant cover, litter mass, and water infiltration rate in soil across six plant community sites in a semiarid grassland

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 861, P. 160692 - 160692

Published: Dec. 5, 2022

Language: Английский

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Frontiers in páramo water resources research: A multidisciplinary assessment

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 892, P. 164373 - 164373

Published: May 25, 2023

Language: Английский

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The adoption of sustainable practices in livestock production systems in tropical Andean Páramos

Frontiers in Sustainable Food Systems, Journal Year: 2025, Volume and Issue: 8

Published: Jan. 27, 2025

The geographical areas of the Andean paramo are considered strategic and highly important ecosystems both for their ecosystem services being a great support society based on what water resources imply. However, these have been affected by livestock production, which is one main activities carried out in areas. This study highlights importance approaching farmers who inhabit from an approach adopting sustainable technologies practices farming so that they can contribute to conservation environment. has two objectives (1) develop concept technology adoption agriculture, starting its categories variables until reaching relationship with farming, (2) provide conceptual basis interrelates adoption, páramo as geographic Finally, this proposed framework serve reference carry empirical analysis seeking test various hypotheses.

Language: Английский

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Efficiency analysis of irrigation ditches over different land uses in the Andean region of Ecuador: implication for nature-based water management strategies

Environmental Earth Sciences, Journal Year: 2025, Volume and Issue: 84(4)

Published: Feb. 1, 2025

Abstract Human pressures and global change are threatening water resources. Circumstances vary in each location; therefore, finding solutions that address local issues helps achieve comprehensive management strategies. In the Andean basins, pre-Inca cultures used nature-based techniques to deal with dry seasons. This knowledge these have been recognized as a strategy increase security. Additionally, they unconsciously applied improve hydrological conditions areas affected by extreme land-use changes. Water sowing harvesting manage territories dedicated livestock agriculture. research evaluates three traditional infiltration ditch systems on two types of land use (páramo cultivated pastures) region Azuay (Ecuador). The objective was establish potential for better resources Eosin-traced diverted through channels or ditches, infiltrated into soil, retained an average 31 days páramo soil from 90 111 pasture soil. Controlled contributes effective retaining extended periods. We conclude perform soils higher retention capacity. These suitable managing where changes reduced storage potential.

Language: Английский

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Steppes and prairies

Elsevier eBooks, Journal Year: 2025, Volume and Issue: unknown, P. 181 - 200

Published: Jan. 1, 2025

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Soil–vegetation–water interactions controlling solute flow and chemical weathering in volcanic ash soils of the high Andes

Hydrology and earth system sciences, Journal Year: 2023, Volume and Issue: 27(7), P. 1507 - 1529

Published: April 11, 2023

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) high Ecuadorian Andes 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 about 2-fold less from horizons. This attributed retention saturated hydraulic conductivity associated shallower coarser root system. Under plants, dissolved organic carbon (DOC) metals (Al, Fe) mobilized Solute that be related plant nutrient uptake (Mg, Ca, K) decline depth, as expected biocycling nutrients. Dissolved silica bicarbonate minimally influenced represent largest contributions fluxes. Soil constant depth below grasses but declining plants. difference mainly Our findings reveal modify properties uppermost horizon, altering balance, fluxes, throughout profile.

Language: Английский

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The role of peat-forming bofedales in sustaining baseflow in the humid puna

Journal of Hydrology Regional Studies, Journal Year: 2023, Volume and Issue: 47, P. 101394 - 101394

Published: May 16, 2023

Humid puna of the Central Andes, Perú Bofedales, or peat-forming wetlands, are a characteristic feature humid - high elevation, seasonally dry grass- and shrub-land throughout Andes. Despite hydrologic importance for downstream communities, inference that bofedales play an important role, few studies have explored hydrology this ecosystem, none quantified bofedal water yield to streams. We designed 3-year study in Upper Ramuschaka Watershed (URW), 2.12 km2 catchment sustaining perennial stream used irrigation downstream. monitored fluxes through URW, periodically measured discharge 19 nested subbasins across wet seasons, characterized structure, hydraulic properties, storage capacity four bofedales. Unit runoff is consistently higher with greater coverage. High porosity peat fills season via groundwater recharge drains slowly underlying layers low conductivity. Bofedales cover 11.6% URW store 105,000 ± 10,000 m3 seasonally. In season, 49 5 mm streams, equivalent 20 – 98% URW's runoff. regulate drainage from communities therefore vital local regional security.

Language: Английский

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Rethinking Agricultural Policy in Ecuador (1960–2020): Analysis Based on the Water–Energy–Food Security Nexus

Sustainability, Journal Year: 2023, Volume and Issue: 15(17), P. 12850 - 12850

Published: Aug. 25, 2023

Agriculture is the principal source for satisfying growing global demand food. However, current production patterns and socioeconomic demographic pressures could lead to an unsustainable, inequitable food supply. Government interventions support technical advances designed meet future needs following international trends while overcoming biophysical constraints. Those most often used are focused on augmenting land productivity through mechanisation increased dependence external inputs. To that end, public policies have emerged as engines of development in agriculture agri-food system. This article provides a chronological analysis relevant milestones sector Ecuador (1960–2020). At first, agrarian reform distribution tenure. Subsequently, focus moved implementation research, technological innovation technology transfer programmes promoted by state with financing from organisations. For this article, we chose our approach water–energy–food nexus. Until now, insufficient study based regarding agricultural has been conducted Ecuador. It essential concentrate because it represents about 10% gross domestic product employment more than two-thirds economically active population rural areas. fractioning, lack project continuity application packages identified suggest need rethink sustainable

Language: Английский

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Land cover changes and comparison of current landscape metrics in a region of the Central Andes affected by population migration

Annals of GIS, Journal Year: 2024, Volume and Issue: 30(1), P. 105 - 120

Published: Jan. 2, 2024

The Andes region has a rich history of environmental and human interactions that shaped the landscape for millennia. Our study quantified land cover changes in districts Huanta Luricocha after population abandoned due to armed conflict with Peruvian authorities (1980 – 1990) their progressive return (1990 2020). We analysed satellite images various resolutions, including Landsat-5 years 1986, 1990, 2000 2010; Landsat-8 year 2020, Sentinel-2 2017 2020; PeruSat-1 assess temporal change metrics. classification was based on pixel approach Landsat an average accuracy 88.29% 92.13% respectively, object-based (GEOBIA) Perusat-1 images, 87.75%.

Language: Английский

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