China has long been experiencing intense land use/cover changes (LUCC). Undesirable land use/cover changes have resulted in widespread land degradation. This study examines the temporal and spatial dynamics of land use change and land degradation as evident from land use survey datasets (1991-2001). Six prominent land degradation processes were identified, namely: desertification, secondary salinisation, loss of agricultural use, deforestation, grassland degradation and loss of wetland. Rates of conversion were calculated and distribution patterns were mapped with the aid of GIS.

Desertification has recognized as an environmental problem by many international organizations such as UN, NATO and FAO. Desertification in Turkey is generally caused by incorrect land use, excessive grazing, forest fires, urbanization, industry, genetic erosion, soil erosion, salinization, and uncontrolled wild type plants picking. Due to anthropogenic destruction of forest, steppe flora gradually became dominant in Anatolia. In terms of biodiversity, Turkey has a significant importance in Europe and Middle East.

Estimates of soil organic carbon (SOC) stocks and changes under different land use systems can help determine vulnerability to land degradation. Such information is important for countries in arid areas with high susceptibility to desertification. SOC stocks, and predicted changes between 2000 and 2030, were determined at the national scale for Jordan using The Global Environment Facility Soil Organic Carbon (GEFSOC) Modelling System.

Agricultural activities and their complex effects on nature conservation, and the services that ecosystems deliver to humans are controversial. We present an overview of land abandonment, its driving forces and its consequences for landscape, biodiversity and humans. A descriptive metaanalysis of independently published studies highlighted the fact that the abandonment of agricultural land is a phenomenon mostly driven by socio-economic factors such as immigration into areas where new economic opportunities are offered to rural people.

The report is a result of input solicited from Member States and regional partners, and extensive desk review of available documentation and internet resources on drought and desertification, as well as information exchange with and comment from various

organizations and individuals. It is in no way meant to be exhaustive but it brings out the main findings obtaining from the above sources on the subject matter.

The United Nations Commission on Sustainable Development (CSD) at its Sixteenth Session 1. (CSD-16) to be held in 2008, will focus on the assessment of the progress made in implementing programs and actions on sustainable development under the thematic cluster of issues covering agriculture and rural development, land, drought, desertification and Africa.

Land is very important natural resource to the human being as it provides the basis for more than 95% of human food. On the broader context, land has many other functions, e.g. provision of biological habitats and physical and connective space; regulation of hydrology and climate; storage of minerals, raw materials and historical/pre-historical records; and as a buffer to control waste and pollution. Expanding human requirements and economic activities are placing ever increasing pressures on land resources, creating competition and conflicts and resulting in suboptimal use of land.

This report looks at possible ways for policy-makers and decision-takers to combat and/or prevent land degradation in the Economic and Social Commission for Western Asia (ESCWA) region, both generally and specifically in the following countries: Egypt, Jordan, Syria and the United Arab Emirates (UAE). The report begins by reviewing the extent, causes and impact of land degradation and examines the complexity of assessing land degradation programmes.

El ordenamiento territorial y la lucha contra la desertificación constituyen dos vertientes del conocimiento con gran entidad en sí mismos y no es frecuente encontrar una articulación entre sus respectivos enfoques y perspectivas ni tampoco propuestas operativas que sinergicen sus resultados. La integración de ambas vertientes podría resultar en desarrollos teóricos, metodológicos y propuestas de intervención capaces de mitigar las condiciones de inequidad y pobreza que se ponen en evidencia en amplios territorios de tierras secas de la Argentina.