the production of public goods like amenity value of the landscape, food security, preservation of rural communities and rural lifestyle, by agricultural sector is a subject that has been widely accepted by experts. however, in many policies and political analyses carried out, solely the production of private goods by the agricultural sector is paid attention and the important function of publi...

This paper aims to analyze tariff protection policies in the agricultural sector of developing countries. The agricultural tariff structure in developing countries is characterized by: i) high average tariffs, ii) the existence of tariff escalation, iii) dispersion of nominal tariffs across tariff lines, and iv) a wide gap between average nominal tariffs and import-weighted average tariffs. Con...

As part of a larger study of mercury (Hg) biogeochemistry and bioaccumulation in agricultural (rice growing) and non-agricultural wetlands in California's Central Valley, USA, seasonal and spatial controls on methylmercury (MeHg) production were examined in surface sediment. Three types of shallowly-flooded agricultural wetlands (white rice, wild rice, and fallow fields) and two types of manage...

this research was conducted to zoning of gorgan agricultural lands for hulless barley cropping using evaluation of some environmental factors base on boolean logic and by geographic information system. for this purpose, agro-ecological requirements of hulless barley firstly, identified according to scientific resources. rating and thematic requirement maps were then provided. studied environmen...

an agroecological zones (aez) map is an essential tool for agricultural planning. by integrating the key components of the agricultural environments, it offers a bird's-eye view of internal diversity, agricultural potential and constraints that decision-makers find easier to understand than a pile of single-theme maps. in this study, aez map of the karkheh river basin has been prepared usi...