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URBANIZATION: IMPACTS ON THE EVOLUTION OF 'MIXED FARMING' SYSTEMS IN SUB-SAHARAN AFRICA

Journal Articles & Books
Dezembro, 2006
Nigéria
Quênia
Senegal
Níger
África

During the past two decades or so, rural population in Africa has increased slowly while urban population has grown dramatically. The hugely increased urban demand for cereals and pulses (which produce crop residues for livestock) and for livestock products is now the main force stimulating mixed farming systems in the semiarid and subhumid areas of subSaharan Africa. Grazing land has diminished, crop residues are becoming a more important element in raising livestock and fattening penned livestock has become profitable.

Ecological consequences of rapid urban expansion: Shanghai, China

Journal Articles & Books
Dezembro, 2006
China

Since China's economic reform in the late 1970s, Shanghai, the country's largest and most modern city, has experienced rapid expansion and urbanization. Here, we explore its land‐use and land‐cover changes, focusing on the impacts of the urbanization process on air and water quality, local climate, and biodiversity. Over the past 30 years, Shanghai's urban area and green land (eg urban parks, street trees, lawns) have increased dramatically, at the expense of cropland.

Estimating effects of an urban growth boundary on land development

Journal Articles & Books
Dezembro, 2006

This study estimates the effects of an urban growth boundary (UGB) on land development decisions in Knox County, TN, using a heteroscedastic probit model. With combined effects of increased land development within the city boundary and decreased development within the UGB and the neighboring town of Farragut after the implementation of UGB, the UGB of Knox County has been successful in urban revitalization within the city boundary and discouraging urban sprawl.

Urban Containment Policies and the Protection of Natural Areas: The Case of Seoul's Greenbelt

Journal Articles & Books
Dezembro, 2006
República da Coreia

Countries around the world have responded to the problems associated with rapid urban growth and increasingly land-consumptive development patterns by creating a wide range of policy instruments designed to manage urban growth. Of the array of growth management techniques, urban containment policies are considered by some to be a promising approach. This paper focuses on greenbelts, the most restrictive form of urban containment policy. The long-standing greenbelt of Seoul, Republic of Korea is examined as a case study.

Analysis of the spatio-temporal and semantic aspects of land-cover/use change dynamics 1991-2001 in Albania at national and district levels

Journal Articles & Books
Dezembro, 2006
Albânia

In the turmoil of a rapidly changing economy the Albanian government needs accurate and timely information for management of their natural resources and formulation of land-use policies. The transformation of the forestry sector has required major changes in the legal, regulatory and management framework.

Evaluating Impacts of Urban Land Titling: Results and Implications: Preliminary Findings

Reports & Research
Outubro, 2006
Rwanda

This paper contains a preliminary summary of key issues and findings from a desk review of
the literature on land titling projects and programmes in urban and peri-urban areas of
developing countries. It draws on a large number of documents, not all of which have been
incorporated into the review at the time of writing. The present bibliography will be
expanded in the final text of the review which is to be completed by early December 2006.

Land-use/land-cover dynamics in Chiang Mai: Appraisal from remote sensing, GIS and modelling approaches

Policy Papers & Briefs
Agosto, 2006
Tailândia

Remotely-sensed images and Geographical Information Systems (GIS) data were integrated into the SLEUTH cellular automata (CA) model to analyze land-use/land-cover dynamics in Chiang Mai city and its surrounds. The land-use and land-cover statistics, obtained from GIS data base and satellite images from 1952, 1977, 1989 and 2000 revealed rapid increased in urbanization during these periods. To understand the underlying causes of land-use and land-cover dynamics, remote sensing, GIS and modeling techniques were applied.

Urban Land and Housing Markets in the Punjab, Pakistan

Reports & Research
Training Resources & Tools
Junho, 2006
Paquistão
Ásia Meridional

This note provides a short overview of urban land and housing market performance in Punjab Province of Pakistan. It describes the characteristics of well-functioning urban land and housing markets and argues that, at present, the Punjab's urban land and housing markets are not performing well. The paper identifies a range of structural and institutional shortcomings that impede urban land market performance, and then concludes by offering recommendations for making land and housing markets functions better.