Using EcoYieldSAFE to compare soil carbon dynamics under future climate in two contrasting agroforestry systems

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Assessing the environmental externalities of arable, forestry and silvoarable systems: new developments in farm-SAFE

info:eu-repo/semantics/publishedVersio

Modelling the economics of agroforestry at field- and farm-scale

This report (Deliverable 6.18) assesses the economics of agroforestry systems at field- and farm-scales and compares them with alternative land uses such as arable cropping, pasture and forestry. This analysis is undertaken in terms of financial profitability (e.g. from a farmer perspective) and economic benefits (e.g. from a societal perspective)N/

Firewood extraction affects carbon pools and nutrients in remnant fragments of temperate forests at the Mexican Transvolcanic Belt

Globally, remnant fragments of forests represent the main carbon reservoir of terrestrial ecosystems, but they suffer strong degradation due to uncontrolled wood extraction mainly by tree cut for household fuel use and charcoal production. The present study evaluates the degradation caused by wood extraction on carbon pools and soil nutrient dynamics in temperate forests distributed in remnant fragments located in central Mexico. Four sites with different intensity of wood extraction were chosen for measuring carbon pools and nutrient fluxes during two years. Both, aboveground carbon biomass and soil organic carbon values decreased with the intensity of forest degradation. The degraded forest (DF) showed total carbon content 55 % lower than that shown by the seminatural forest (SF). Additionally, litterfall production was reduced in DF as compared to SF; the decomposition rate of standing litter was higher in the latter site. As a consequence, DF had lower organic matter inputs to the soil than that presented by SF. Soil extractable ammonium and microbial biomass-carbon and -nitrogen were lower in DF than in SF. It was concluded that the uncontrolled wood extraction in these remnants of temperate forest in Mexico significantly reduced the carbon pools, carbon and nutrient fluxes through litterfall and consequently, the soil nutrient dynamics were disrupted

Keeping a parameter-sparse concept in agroforestry modeling while integrating new processes and dynamics: new developments in yield-safe

info:eu-repo/semantics/publishedVersio

An asymmetric BODIPY triad with panchromatic absorption for high-performance red-edge laser emission

© The Royal Society of Chemistry 2015. A rational design of an unprecedented asymmetric cassette triad based entirely on BODIPY chromophores allows efficient light harvesting over the UV-vis spectral region, leading to a bright and stable red-edge laser emission via efficient energy-transfer processes.Peer Reviewe

Strategic direction of the human talent in the promotion of values in the Venezuelan police forces

This research was aimed at analyzing the strategic direction of human talent to promote values in Venezuelan police forces. The research was supported by Alles (2008), Cortina (2007), Martinelli (2004). The methodology was descriptive, nonexperimental cross-sectional design, the study population consisted of (35) subjects. A survey was applied with 40 items, with application of the Likert scale for interpretation. Data were tabulated according to the reagents and interpreted statistically by absolute and relative frequency, as well by central tendency and standard deviation scores.La Investigación estuvo dirigida a analizar la dirección estratégica del talento humano para fomentar valores en los cuerpos policiales venezolanos. La investigación estuvo sustentada en Alles (2008), Cortina (2007), Martinelli (2004). La metodología fue descriptiva, diseño no experimental transversal, la población estudiada estuvo conformada por (35) sujetos. Se aplicó una encuesta con 40 ítemes, con aplicación de la escala de Likert para su interpretación. Los datos fueron tabulados de acuerdo con los reactivos e interpretados estadísticamente mediante frecuencias absoluta y relativa, y puntajes de tendencia central y desviación estándar