Strong economic growth in urban areas has not led to rapid urbanization in Ethiopia, possibly as a result of prevailing land tenure policies. We examine the economic implications of accelerated urbanization using a rural–urban economywide model that explicitly captures internal migration and agglomeration effects. Simulation results indicate that accelerated urbanization would strengthen economic growth, improve rural welfare, and reduce the rural–urban divide.

Rural development and urbanisation are often seen as competing, but in most cases are intimately linked. It is essential that policies re? ect and support the many positive links between rural and urban areas, enterprises and people. This in turn requires a better understanding of urbanisation processes and the role of small towns.

In today’s China, about 220 million rural migrant workers are on the move – this is more than two thirds of the US population – and their number is set to increase in the course of the country’s urbanisation process. At a rate of 47 percent, still below global average, and against the backdrop of a marked rural-urban divide, urbanisation is not only an effect of rapid economic development, but also forms part of the Chinese government’s economic development strategy.

More and more young people are leaving the rural areas and migrating to the cities. Although the industrial and the developing nations come from different starting points, such migration ultimately has the same effect on village life and the rural areas everywhere. In the industrial nations the agricultural population is ageing.

In this paper, we provide an assessment of plantation forests and private land resources potentially available for pine plantation development in 11 southern states of the United States. After a sustained growth for 50 years, plantation forests (softwood and hardwood on both private and public lands) amounted to 18 million ha or 24 percent of all timberlands in these states in 2007. The vast majority of the plantation forests were established on private lands with fast-growing loblolly pines and slash pines.

Widespread and increasing urbanization has resulted in the need to assess, monitor, and understand its effects on stream water quality. Identifying relations between stream ecological condition and urban intensity indicators such as impervious surface provides important, but insufficient information to effectively address planning and management needs in such areas.

Protected areas are crucial for biodiversity conservation because they provide safe havens for species threatened by land-use change and resulting habitat loss. However, protected areas are only effective when they stop habitat loss within their boundaries, and are connected via corridors to other wild areas. The effectiveness of protected areas is threatened by development; however, the extent of this threat is unknown.

During 2008 the world witnessed a global food crisis which caused social unrest in many countries and drove 75 million more people into poverty. The crisis resulted from sharply higher oil prices, increased bio-fuel production, dwindling grain stocks, market speculation, changing food consumption patterns in emerging economies, and changes in world trade agreements, among other factors. Although the rise in food prices was sudden, the fragility of global food security had been developing for years.

The development of synergies between efforts to mitigate land degradation and biological diversity decline can enhance effectiveness, speed up implementation and avoid potential conflicts. Due to the variable nature of these processes and to the variable characteristics of the areas where they occur, there is no general rule linking land degradation and biological diversity decline. Thus, a geographically limited approach focusing on drivers of change may provide a more appropriate base upon which synergies can be built. This exercise is undertaken for the case of northern Mediterranean.

Aim To examine the effect of climate change on the occurrence and distribution of Pipistrellus nathusii (Nathusius' pipistrelle) in the United Kingdom (UK). Location We modelled habitat and climatic associations of P. nathusii in the UK and applied this model to the species' historical range in continental Europe. Methods A binomial logistic regression model was constructed relating the occurrence of P. nathusii to climate and habitat characteristics using historical species occurrence records (1940-2006) and CORINE land cover data.

Questions: What is the relative importance of landscape variables compared to habitat quality variables in determining species composition in floodplain forests across different physiographic areas? How do species composition and species traits relate to effects of particular landscape variables? Do lowland and mountain areas differ in effects of landscape variables on species composition? Location: Southern Czech Republic. Methods: A total of 240 vegetation relevés of floodplain forests with measured site conditions were recorded across six physiographic areas.