The continuously-increasing demand for food by a steadily-growing human population has created strong competition between man and animals for certain feedstuffs that can be used by both. Rations used for intensive beef and milk production are largely based on grain, which is the staple food for man in most of the developing countries with a general protein-energy deficiency (Lapedes, 1980). It ...

converting rangelands to arable land such as dry farming is widely practiced in many places in iran. this activity could possibly contribute to the increase in downstream sedimentation. the effects of this activity on downstream watersheds are not well documented for many strategic areas in the country. one such area which is proposed for this study is the kardeh drainage basin, located in the ...

The present paper examined the relationship of population to the environment and with growing population, poverty and urbanization the environment is degrading. Conducted an analysis of changes and trends over last fifty years. The study reveals that the country's population growth is imposing an increasing burden on the country's limited and continually degrading natural resource base. The nat...

Assessment of the potential CO(2) emission reduction by development of non-grain-based ethanol in China is valuable for both setting up countermeasures against climate change and formulating bioethanol policies. Based on the land occupation property, feedstock classification and selection are conducted, identifying sweet sorghum, cassava, and sweet potato as plantation feedstocks cultivated fro...

Many countries in Central and Eastern Europe have been undergoing marked economic changes following the collapse of the former “Eastern Bloc” and totalitarian regimes. In the Czech Republic, this transition has had a profound effect on land use management that subsequently results in widespread land cover changes. This study analyzes trends in land use/land cover changes (LULCC) in the context ...

Human use of land has transformed ecosystem pattern and process across most of the terrestrial biosphere, a global change often described as historically recent and potentially catastrophic for both humanity and the biosphere. Interdisciplinary paleoecological, archaeological, and historical studies challenge this view, indicating that land use has been extensive and sustained for millennia in ...

According to a UN Environment Programme survey, topsoil is eroding faster than it forms on about one third of the world’s cropland, causing an estimated 85 % of the world s land degradation from human activities. Erosion of soil, mainly by water, is also a problem in the Czech Republic where 54 % of arable land is endangered by water erosion. The topic of this article is to describe contemporar...

Land consolidation is the basis of making the land arrangement special plan, meanwhile, land consolidation sub area, ascertaining land consolidation item and setting land consolidation indices are mainly depended on land consolidation potentiality, so it is necessary to do this research. As the most important pattern of land consolidation, potential evaluation of cultivated land consolidation i...

Secondary forest succession on abandoned agricultural land has played a significant role in land cover changes in Europe over the past several decades. However, it is difficult to quantify over large areas. In this paper, we present a conceptual framework for mapping forest succession patterns using vegetation structure information derived from LiDAR data supported by national topographic vecto...