The study was carried out in three highland woredas (districts) of Chilga, Dembia and Gondar Zuria in north Gondar Zone, Amhara Region, Ethiopia. These woredas were purposively selected because of their long experience in transhumance cattle production system.
This paper examines the information transfer of the units in the general purpose Hungarian soil classification in relation to land productivity evaluations. Statistical analyses of a national soil and plant production database have been applied. Results show that in some cases soil groupings, both in the general purpose taxonomy and productivity classifications, may be incorrect.
This study was carried out to determine the impacts of climate change on aridity and land cover in Turkey. Data for future (2070s) climate change, according to present conditions (1990s), were estimated from the prediction results of a regional climate model (RCM). The RCM, which was developed in Japan, is based on the MRI model.
Entre 25 e 26 de Março, realizou-se em Maputo um workshop de alto nível envolvendo dirigentes governativos, de empresas ligadas a indústrias de recursos naturais e sociedade civil de vários países Africanos. O workshop tinha como tema melhorar o impacto das indústrias de recursos naturais através do uso efectivo de receitas e da responsabilidade social corporativa.
Watersheds, especially in the developing world, are increasingly being managed for both environmental conservation and poverty alleviation. How complementary are these objectives? In the context of a watershed, the actual and potential linkages between land and water management and poverty are complex and likely to be very site specific and scale dependent.
Quantitative method for social benefit evaluation on land consolidation is put forward based on social security function of land. It has broken through the limitation of current social benefit evaluation on land consolidation, which can only carry out qualitative assessment.
We set up the evaluation index system of the sustainable development ability of grain production on the basis of the overall analysis of grain production trend in Sichuan Province. And then we evaluate the sustainable development ability of grain production from 1990 to 2006 in Sichuan Province by adopting the method of principal component analysis.
Salinization and alkalization are considered spatiotemporal dynamic soil degradation processes. In order to investigate the effects of agricultural activities on land degradation and soil salinity, Shamsabad area in Qom province was selected. Aerial photos (1955) and satellite images (1990-2002) were used to examine the changes in land use.
The forms and dynamics of soil phosphorus can be greatly affected by land use changes, which often involve changes in vegetation cover, biomass production and nutrient cycling in the ecosystem. Present research evaluates the impact of land use change on the amount of total organic and inorganic P, labile, moderately labile and nonlabile P pools in semiarid soils of central Zagros.
El decrecimiento nos revela que para la ciencia económica el medio ecológico en el que se desarrolla el proceso económico no existe. La economía deja fuera de sus modelos a la biosfera. Esta ceguera explica que el “desarrollo” occidental haya sobrepasado desde finales de los años 80 las capacidades de carga de la tierra.
The aim of this paper is to discuss the potential impact of climate change on element budgets and acidity in northern forest ecosystems. A catchment approach should provide the most appropriate unit and to be investigated in several spatial scales.
Starting from the predicament for agricultural insurance development in China, we use the principle of economics and game theory to analyze the causation of the difficulty in developing agricultural insurance based on apprehending the connotation of agricultural insurance.