Rosa Mary Hernández
A5108061606- Plant and soil sciences
- Agricultural and Food Production Studies
- Soil Carbon and Nitrogen Dynamics
- Agroforestry and silvopastoral systems
- Soil Management and Crop Yield
- Ecology and Vegetation Dynamics Studies
- Soil Science and Environmental Management
- Invertebrate Taxonomy and Ecology
- Mycorrhizal Fungi and Plant Interactions
- Rangeland Management and Livestock Ecology
- Rangeland and Wildlife Management
- Banana Cultivation and Research
- Ruminant Nutrition and Digestive Physiology
- Sustainable Agricultural Systems Analysis
- Plant and animal studies
- Seedling growth and survival studies
- Soil and Water Nutrient Dynamics
- Environmental and Ecological Studies
- Forest ecology and management
- Legume Nitrogen Fixing Symbiosis
- Agriculture and Rural Development Research
- Botany and Plant Ecology Studies
- Health and Lifestyle Studies
- Soil erosion and sediment transport
- Biocrusts and Microbial Ecology
Universidad Nacional Experimental Simón Rodríguez
2013-2024
Centro de Estudios Científicos
2024
Universidad Técnica del Norte
2016
Central University of Venezuela
2005-2014
Instituto Nacional de Cardiologia
1998
Instituto Nacional de Cardiología
1998
Experiments suggest that biodiversity enhances the ability of ecosystems to maintain multiple functions, such as carbon storage, productivity, and buildup nutrient pools (multifunctionality). However, relationship between multifunctionality has never been assessed globally in natural ecosystems. We report here on a global empirical study relating plant species richness abiotic factors drylands, which collectively cover 41% Earth's land surface support over 38% human population....
Grazing represents the most extensive use of land worldwide. Yet its impacts on ecosystem services remain uncertain because pervasive interactions between grazing pressure, climate, soil properties, and biodiversity may occur but have never been addressed simultaneously. Using a standardized survey at 98 sites across six continents, we show that soil, are critical to explain delivery fundamental drylands Increasing pressure reduced service in warmer species-poor drylands, whereas positive...
Abstract Dryland vegetation is characterized by discrete plant patches that accumulate and capture soil resources under their canopies. These “fertile islands” are major drivers of dryland ecosystem structure functioning, yet we lack an integrated understanding the factors controlling magnitude variability at global scale. We conducted a standardized field survey across 236 drylands from five continents. At each site, measured composition, diversity cover perennial plants. Fertile island...
Abstract Aim Geographical, climatic and soil factors are major drivers of plant beta diversity, but their importance for dryland communities is poorly known. The aim this study was to: (1) characterize patterns diversity in global drylands; (2) detect common environmental diversity; (3) test thresholds conditions driving potential shifts species composition. Location Global. Methods Beta quantified 224 from 22 geographical regions on all continents except Antarctica using four complementary...
Abstract Multiple ecosystem functions need to be considered simultaneously manage and protect the several services that are essential people their environments. Despite this, cost effective, tangible, relatively simple globally relevant methodologies monitor in situ soil multifunctionality, is, provision of multiple by soils, have not been tested at global scale. We combined correlation analysis structural equation modelling explore whether we could find easily measured, field‐based...
Abstract Aims Climate and human impacts are changing the nitrogen ( N ) inputs losses in terrestrial ecosystems. However, it is largely unknown how these two major drivers of global change will simultaneously influence cycle drylands, largest biome on planet. We conducted a observational study to evaluate aridity impacts, together with biotic abiotic factors, affect key soil variables cycle. Location Two hundred twenty‐four dryland sites from all continents except A ntarctica widely...
Increases in the abundance of woody species have been reported to affect provisioning ecosystem services drylands worldwide. However, it is virtually unknown how multiple biotic and abiotic drivers, such as climate, grazing, fire, interact determine dominance across global drylands. We conducted a standardized field survey 304 plots 25 countries assess climatic features, soil properties, fire dryland rangelands. Precipitation, temperature, grazing were key determinants tree shrub dominance....
Banana is a staple food and major export commodity in the tropics. However, banana production systems are affected by plant-soil relationships, where properties such as quality quantity of soil organic matter play an important role dynamics physical properties. In order to evaluate effect carbon (SOC) content its distribution water-stable aggregates (WAS), fractions macro-organic matter, study was conducted lacustrine soils under cv. ʻGrand Nainʼ Venezuela. Soil sampling carried out two...
A great extension (615 000 ha) of native savan-nas the eastern plains Venezuela have been replaced by plantations Pinus caribaea var. hondurensis; however, only scarce information exists about impact this land use on carbon dynamics in soils. We studied effect temporal variability and substitution total organic (TOC), water-soluble (WSC), microbial biomass C (Cmic), basal respiration (BR), metabolic quotient (qCO2) Cmic/Corg ratio. Selected chemical properties biological parameters soils...