Ecohydrological assessment of the water balance of the world's highest elevation tropical forest (Polylepis)

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 941, P. 173671 - 173671

Published: May 31, 2024

Language: Английский

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Transformation of tall-tussock grasslands and soil water dynamics in the Flooding Pampa

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 896, P. 165362 - 165362

Published: July 5, 2023

Language: Английский

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Spatially distributed tracer‐aided modelling to explore DOC dynamics, hot spots and hot moments in a tropical mountain catchment

Hydrological Processes, Journal Year: 2023, Volume and Issue: 37(11)

Published: Oct. 31, 2023

Abstract Tracer‐aided rainfall‐runoff modelling is a promising tool for understanding catchment hydrology, particularly when tracers provide information about coupled hydrological‐biogeochemical processes. Such models allow predicting the quality and quantity of water under changing climatic anthropogenic conditions. Here, we present Spatially‐distributed Tracer‐Aided Rainfall‐Runoff model with biogeochemical reactive tracer module (STARR‐DOC) to simulate dissolved organic carbon (DOC) dynamics sources. The STARR‐DOC was developed tested humid high Andean ecosystem (páramo) using high‐resolution hourly DOC hydrometeorological data discharge at fine spatial (10 × 10 m) resolution. Overall, able acceptably reproduce (KGE ~ 0.45) stream 0.69) dynamics. Spatially distributed simulations were independently compared point measurements different soil types across catchment, which allowed identifying production hot spots moments. Results showed higher hydrological connectivity between slopes valleys increasing precipitation. Wetter conditions also favoured (wet month = 82 mg L −1 , dry 5 ) transport network (DOC concentrations: during events ~15 baseflows ~4 ). Our results suggest that minor changes in meteorological directly affect páramo biogeochemistry. Knowledge where mountain catchments greatest important managers understand they make decisions security, especially considering climate change predictions region.

Language: Английский

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Delineation of water flow paths in a tropical Andean headwater catchment with deep soils and permeable bedrock

Hydrological Processes, Journal Year: 2022, Volume and Issue: 36(10)

Published: Oct. 1, 2022

Abstract Traditional hydrometric data combined with environmental tracers such as water stable isotopes contributes to improve the understanding of catchment hydrology. Nevertheless, application isotopic in headwater catchments tropical Andes deep soils and permeable parent material influenced by recent volcanism remains limited. In this study, composition precipitation, soil water, wetlands, streamflow was studied provide insights into hydrology a small Andean volcanic soils, ash layers, fractured bedrock resulting from Holocene activity. Although local precipitation forms under equilibrium conditions, is atmospheric moisture recycling processes. The spatial temporal variability signals analysis inverse transit time proxies (ITTPs) surface (streamflow) subsurface (soil wetlands) waters indicate that vertical flow paths through are dominant across catchment. strongly damped these points high wetlands storage, increasing or age stream hydrological system. These findings mobilizing paths–that is, cracks volcanism–is main contributor generation. Comparison previously published work other areas shows diversity conditions can be found result pedological lithological differences shaped Therefore, site‐specific strategies may needed resources management.

Language: Английский

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Initiatives on exploring the mechanism of eco‐hydrological response to land surface change and adaptive regulation in the Yellow River Basin

River, Journal Year: 2023, Volume and Issue: 2(2), P. 149 - 157

Published: May 1, 2023

Abstract The Yellow River Basin faces water scarcity and ecological fragility. Changes on the land surface, characterized by large‐scale soil conservation measures, have a significant impact river runoff environment. However, there are still great uncertainties in scientific understanding of mechanisms which multiple driver eco‐hydrological processes due to diversity surfaces complexity coupling processes. As an international frontier interdisciplinary studies climatology, hydrology, ecology, other related fields, it is study assess impacts surface change risk support restoration plan sustainable resources utilization Basin. Taking as area, this proposes several important research initiatives, focusing addressing problems Loess Plateau. These initiatives include (1) quantify individual effect elements (e.g., vegetation, terraces, check dam) reveal nonlinear driving drivers processes; (2) construct distributed model that couples dynamic features, simulate changing environment; (3) improve assessment indicator system methods for assessing changes synergistic functions risk; (4) establish regulation based multiobjective game theory adopt adaptive mode management. could enrich eco‐hydrology, prompt disciplinary fields. expected academic achievements will innovate simulation techniques environment, strongly implementation national strategy protection high‐quality development

Language: Английский

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Environmental and social impacts of carbon sequestration

Integrated Environmental Assessment and Management, Journal Year: 2024, Volume and Issue: unknown

Published: April 23, 2024

Abstract Climate change requires major mitigation efforts, mainly emission reduction. Carbon sequestration and avoided deforestation are complementary strategies that can promote nature conservation local development but may also have undesirable impacts. We reviewed 246 articles citing impacts, risks, or concerns from carbon projects, 78 others related to this topic. Most of the impacts cited focus on biodiversity, especially in afforestation social effects projects. Concerns were raised about project effectiveness, permanence stored, leakage. Recommendations include accounting for uncertainty, assessing both contribution climate change, defining permanence, creating contingency plans, promoting proposing alternative livelihoods, ensuring a fair distribution benefits, combining timber production sequestration, sustainable minimizing A holistic approach combines conservation, poverty alleviation must be applied. The potential occurrence negative does not invalidate projects makes it advisable conduct proper environmental impact assessments, considering direct indirect while maximizing positive ones, weighing trade‐offs between them guide decision‐making. Public participation transparency essential. Integr Environ Assess Manag 2024;00:1–27. © 2024 SETAC

Language: Английский

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Andean bears (Tremarctos ornatus) display selective behaviors while foraging bromeliads (Puya spp.) in high elevation puna grasslands

PLoS ONE, Journal Year: 2024, Volume and Issue: 19(12), P. e0314547 - e0314547

Published: Dec. 18, 2024

Andean bears ( Tremarctos ornatus ) forage extensively on bromeliads Puya spp.) across their range, although selectivity for is less understood. We report foraging activity by two species of bromeliad, leptostachya and membranacea , in high elevation puna grasslands (3499–3806 m.a.s.l) within near Manu National Park (MNP) SE Peru. established ridgeline transects (inside outside MNP) with perpendicular running downslope. recorded whether bromeliad plants were foraged four separate sampling occasions that included wet dry seasons from July 2017 to August 2018. observed at 6.8% the available individual spread 16.7% patches. utilized Resource Selection Functions evaluate environmental factors influencing selection patches foraging. showed over preferring during season higher density younger vegetative-stage bromeliads, possibly due increased bioavailability nutrients basal meristematic plant tissue prefer eat. selected growing east-facing, steep, high-altitude slopes, a band cloud forest edge, which likely reflected combination optimal conditions habitat bears. Observations grassland occurred almost exclusively boundaries MNP, may part reflect avoiding cattle impacts park. active behavioral grasslands, we recommend buffers around should be considered as primary conservation management plans.

Language: Английский

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Fundamentos de una nueva política forestal para el Perú

Revista Forestal del Perú, Journal Year: 2021, Volume and Issue: 36(2), P. 118 - 179

Published: Dec. 29, 2021

Se presentan los fundamentos de una nueva política para bosques del Perú como respuesta a su situación, marcada por la deforestación y degradación, insignificante aporte al PBI incapacidad abastecer demanda nacional, pesar que cubren mayor parte territorio nacional. Varias políticas, estrategias planes, así cinco leyes no resolvieron situación. Por eso, se propone reforma radical sector, incluyendo un enfoque integral transectorial, única forma abordar deforestación, indicando responsabilidades específi[1]cas sectores agrario transporte; definición patrimonio forestal nacional excluyendo mismo las llamadas tierras aptitud y, ende, descartando el anacrónico concepto clasificación capacidad uso mayor. Las con naturales podrán sufrir cambio uso. En cambio, sector titule campesinos asentados en ya deforestadas acelere proceso curso reconocimiento titulación comunidades nativas campesinas. Además, ese lidere intensificación tierra deforestada mediante aumento productividad agropecuaria. determina función primordial es provisión servicios ambientales no, hasta presente, producción madera. tanto, devuelve Estado responsabilidad manejo forestal, ahora encargada aprovechan recurso forestal. Para asegurar abastecimiento madera estimularán plantaciones forestales serie medidas políticas económicas éstas, además suplir madera, conviertan motor economía asimismo, contribuyan aliviar graves problemas degradación ambiental. Entre otras pro[1]ponen cambios tratamiento fauna silvestre. fortifica apoyo técnico financiero pobladores rurales campesinas, darles mejores oportunidades aprovechar sosteniblemente recursos forestales, gracias renta generada ecosistémicos proveen. Eso presupone mudanzas importantes administración proponiéndose creación Ministerio Recursos Natu[1]rales Renovables pero mantenimiento silvicultura agrario, promulgación ley especiales atender silvicultura, silvestre, tierras, entre otras. trata asimismo temas educación, investigación finalmente, corrupción

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Mapping high-altitude peatlands to inform a landscape conservation strategy in the Andes of northern Peru

Environmental Conservation, Journal Year: 2023, Volume and Issue: 50(4), P. 212 - 219

Published: Oct. 12, 2023

Summary The wetlands of the jalca ecoregion in Andes northern Peru form peat and play a major role hydrological ecosystem services ecoregion. Although is globally valued for carbon sequestration storage, peatlands have not yet been mapped . In this region, Gocta waterfall, one 20 highest waterfalls world, depends on ’s ecosystem. local population tourism to waterfall concerned about preserving its drainage area. To inform conservation planning, study we delimited area identified land tenure by applying Geographic Information System (GIS), remote sensing participatory mapping techniques. Then, classifying optical, radar digital elevation models data, peatland with an overall accuracy 97.1%. Our results will strategy complex communal, private informal systems. At regional level, appears be first attempt at using imagery ecoregion, it represents milestone future efforts map conserve other tropical mountain areas world.

Language: Английский

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Responses of Diversity and Productivity to Organo-Mineral Fertilizer Inputs in a High-Natural-Value Grassland, Transylvanian Plain, Romania

Plants, Journal Year: 2022, Volume and Issue: 11(15), P. 1975 - 1975

Published: July 29, 2022

Ecosystems with high natural value (HNV) have generally been maintained by agricultural practices and are increasingly important for the ecosystem services that they provide their socio-economic impact in ever-changing context. Biodiversity conservation is one of main objectives European Green Deal, which aims to address biodiversity loss, including potential extinction million species. The aim this research was trace effects organic mineral fertilizers on floristic composition, but also number species, grasslands from Transylvanian Plain, Romania. experiments were established 2018 nemoral area analyzed effect a gradient five treatments. Fertilization 10 t ha-1 manure or N50 P25K25 ensures an increase yield has small influence diversity, it could be strategy maintenance sustainable use HNV grasslands. Each fertilization treatment determined species indicator very useful identification management dry matter biomass increases proportionally as amounts fertilizer applied decreases.

Language: Английский

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