Reducing atmospheric carbon emissions from tropical deforestation is at present considered a cost-effective option for mitigating climate change. However, the forces associated with tropical forest loss are uncertain1. Here we use satellite-based estimates of forest loss for 2000 to 2005 (ref. 2) to assess economic, agricultural and demographic correlates across 41 countries in the humid tropic...

We use a model of agricultural sources of ammonia (NH3) coupled to a chemical transport model to estimate the impact of U.S. food export on particulate matter concentrations (PM2.5). We find that food export accounts for 11% of total U.S. NH3 emissions (13% of agricultural emissions) and that it increases the population-weighted exposure of the U.S. population to PM2.5 by 0.36 μg m(-3) on avera...

agriculture has a key role to play in reducing poverty and hunger in many developing countries. about 75% of the world's poor live in rural areas and most are dependent on agriculture and related activities in the rural economy. for this reason the benefits for developing countries’ farmers have been shown to be substantial if oecd member countries reformed their agricultural policies. the issu...

abstract export of nonoil goods in economic activities is so important and its effect on economic and comparative growth is undeniable. so, emphasize on agricultural sector and development of export in this sector prepares good conditions, for iran, to be present at international markets relying its advantages. the study tries to recognize necessary policies to enhance agricultural export poten...

the main purpose of this study was to determine the factors affecting the export of flowers in iran. after data collection using by the index of revealed comparative advantage (rca), the condition of business of flowers in iran was compared with a number of countries exporting the product. according to the results of study, the small elasticity of the exportation price in the function of export...

Background: Achievement of food security has become one of the major challenges of most developing countries, including Zimbabwe. This study was designed to investigate the effect of agricultural commercialization on household food security. Methods: This study used cross-sectional data for the 2017/18 farming season collected from 165 smallholder farmer households in Zhombe north rural distric...

the main purpose of this study was to estimate the market demand of tractor stock in africa, west asia and other target markets for iran manufactured tractors. box and jenkins, and exponential smoothing methods were applied, using data from 1961 to 2006. results indicated that demand for tractor stock in the target markets will be approximately 533 thousand sets in 2012 and consequently the ann...

Increasing crop production, while maintaining sustainability, is a priority for agricultural development projects, particularly in developing countries. This study investigated the factors contributing to the effectiveness of agricultural development projects in improving the sustainability of cropping systems in a small upland watershed in south-west China. This involved a review of recent rel...

This study examines the implications of recent trade trends and long-term price projections for Sub-Saharan Africa’s major exports. Its policy message for Africa is two fold. First, Africa must diversify away from traditional products or continue to experience serious negative trade effects including; (i) declining or relatively low growth in global demand for these goods, (ii) falling real pri...