Most research featuring demographic factors in environmental change has focused on processes operating at the level of national or global populations. This paper focuses on household-level demographic life cycles among colonists in the Amazon, and evaluates the impacts on land use allocation. The analysis goes beyond prior research by including a broader suite of demographic variables, and by s...

The aim of this work is to investigate how the spatial variability of soil properties and soil erodibility (K factor) were affected by the changes in land use allowed by irrigation with water from a reservoir in a semiarid area. To this end, three areas representative of different land uses (agroforestry grassland, lucerne crop and olive orchard) were studied within a 900 ha farm. The interrela...

Afforestation of less productive, risky and degraded agricultural land is one the methods which recommended for practical agriculture to increase carbon sequestration. In this study, we have attempted determine effect afforestation (warm, mildly dry climatic region Czech Republic) on soil organic (Cox) concentrations in mineral soil. Two types (Haplic Chernozem Haplic Cambisol) were afforested....

The Aral Sea was the fourth largest inland lake on globe until 1960, with a surface area of about 68,000 km2. Mainly, huge irrigation projects in many parts its transboundary catchment were responsible for catastrophic desiccation and ecological crises after second part 20th century. Ecological crisis surrounding (lake) regions is one critical environmental problems Central Asia. As result, mon...

balance among different fractions of a carbon sources is of paramount importance in maintenance of very important in soil quality and environmental health. on the other hand, rapid growth of world population, degradation of agricultural soils, along with release of greenhouse gasses are some of the main challenges of the 21st century. the aim of this study was to investigate the extent of chang...