The northern Gulf of Aqaba is an oligotrophic water body hosting valuable coral reefs. In the Gulf, phytoplankton dynamics are driven by an annual cycle of stratification and mixing. Superimposed on that fairly regular pattern was the establishment of a shallow-water fish-farm initiative that increased gradually until its activity was terminated in June 2008. Nutrient, water temperature, irradi...

Growing environmental concerns have prompted governments to make sustainable choices in agricultural resource use. Evaluating the sustainability of systems is a key issue for implementation policies and practices aimed at revealing sustainability. This study evaluate performance Norwegian dairy farms, accounting marginal effects (exogenous) variables. We adopted dynamic parametric approach with...

Environmental effects and natural resources depletion associated with agriculture production affect the response to climate change. Traditional cross-sectional models ignore this requirement. This research estimates impact of on European using a continental scale Ricardian analysis. We correct farm income by accounting for (energy, fertilisers, pesticides, water) use intensity calculate sustain...

This article investigated how process-based animal welfare indicators (PAI) affected the technical efficiency of German dairy farms. A sample of 115 North-Rhine Westphalian dairy farms was used to estimate their technical efficiency with data envelopment analysis. A censored regression model was then applied to quantify the effects of PAI on technical efficiency. The results indicated that in p...

Freshwater prawn farming has become an important component in the livelihood of marginal farmers freshwater interface Southwestern coastal Bangladesh. This been integrated with rice and/or vegetable either simultaneously or sequentially. In attempt to assess status prawn-agriculture gher area, 20 farms at Fakirhat Thana, Bagerhat were surveyed during August-October, 2005. Farmers interviewed qu...

Sustaining agricultural systems dominated by small and vulnerable resource-poor farms that are subject to climatic aberrations is a major challenge for most Asian countries. In this context, the role of agriculture requires immediate attention in northwestern India where marginal farmers with less than meagre 1 hectare land represent about 67% population. Research based on prototype being promo...

to evaluate the influence of core thickness and fabrication stages on the marginal accuracy of ips e.max press crowns.twenty ips e.max press crowns, 1.5mm thick, were fabricated on metal dies. the crowns had two different core thicknesses, 0.8mm for group a and 1mm for group b, ten for each group. marginal gap was measured after each stage of core fabrication, veneering and glaze firing. the sp...

Climate change mitigation in the agricultural sector is a key policy goal. Marginal abatement cost curves allow comparing cost-effectiveness of greenhouse gas measures. Existing studies often do not account for heterogeneity farms and interactions between The objective this study to present new approach that allows calculation marginal curve considers farm level interaction effects climate We a...