The National Geomatics Center of China (NGCC) produced Global Land Cover (GlobalLand30) maps with 30 m spatial resolution for the years 2000 and 2009–2010, responding to the need for harmonized, accurate, and high-resolution global land cover data. This study aims to assess the mapping accuracy of the land surface water layer of GlobalLand30 for 2009–2010. A representative Mediterranean region, situated in Greece, is considered as the case study area, with 2009 as the reference year.

Amongst human practices, agricultural surface-water management systems represent some of the largest integrated engineering works that shaped floodplains during history, directly or indirectly affecting the landscape. As a result of changes in agricultural practices and land use, many drainage networks have changed producing a greater exposure to flooding with a broad range of impacts on society, also because of climate inputs coupling with the human drivers.

Current and future impacts of climate change include increasing variability in a number of biophysical processes, such as temperature, precipitation, and flooding. The Intergovernmental Panel on Climate Change (IPCC) has suggested that Southern Africa is particularly vulnerable to the anticipated impacts from global climate change and that social and ecological systems in the region will be disrupted and likely transformed in future decades.

Water is both a key and limited resource in the Okavango Catchment of Southern Africa. It is vital for the ecosystem and the three riparian states Angola, Botswana and Namibia who use the water of the catchment for multiple purposes including pastoralism, farming and tourism. Socioeconomic changes, primarily strong population growth and increasing development demands pose significant challenges for the Okavango Catchment and its Integrated Water Resource Management (IWRM). In this paper, we first review the socioeconomic background and the current and projected water situation.

A ENCNB é um instrumento fundamental da prossecução da política de ambiente e na resposta às responsabilidades nacionais e internacionais de reduzir a perda de património natural. Avaliações à escala regional e global evidenciam, de modo crescente, que a prosperidade económica e o bem-estar da sociedade são suportados pelo capital natural, o que inclui os ecossistemas naturais e os seus serviços cuja funcionalidade depende, em larga escala, da utilização sustentável e eficiente dos recursos.

THE WILDLIFE CONSERVATION AND MANAGEMENT ACT, 2013 No. 47 of 2013

Date of Assent: 24th December, 2013

Date of Commencement: 10th January, 2014

In Kenya, insecure land tenure and inequitable access to land and natural resources have contributed to conflict and violence, which has in return exacerbated food insecurity. Most farmers in Kenya have no legal title for the land on which they farm. Sources of tenure insecurity can be ethnic conflicts over land between neighbouring communities, particularly in the Northern provinces, expropriation by the state or local government and land grabbing by local elite or companies. Competition is as well growing over water, especially over groundwater, which is scarce in Kenya.

Matters of environmental migration are frequently looked at from a humanitarian perspective.1 This policy brief will instead look at it with a lens focusing on land issues. The question of environmental migration is inevitably linked to the question of land for several reasons. First, climate and environmental change trigger and accelerate the loss of land due to sea-level rise, coastal erosion, landslides and other forms of land degradation.

This book exposes the key land use and environmental problems facing Kenya today due to lack of an appropriate national land use policy. The publication details how the air is increasingly being polluted, the water systems are diminishing in quantity and deteriorating in quality. The desertification process threatens the land and its cover. The soils are being eroded leading to siltation of the ocean and lakes. The forests are being depleted with impunity thus destroying the water catchments.

In Kenya, insecure land tenure and inequitable access to land, forest and water resources have contributed to conflict and violence, which has in turn exacerbated food insecurity. To address these interlinked problems, a new set of laws and policies on food security and land governance are currently being introduced or designed by the Government of Kenya. The new Food Security Bill explicitly recognizes the link between food security and land access, and the 2012 land laws target the corrupt system of land administration that made much of Kenya’s land grabbing possible.

The absence of a clearly defined land use policy in Kenya after years of independence has resulted in a haphazard approach to managing the different land use practices and policy responses. Land use continues to be addressed through many uncoordinated legal and policy frameworks that have done little to unravel the many issues that affect land use management. The Constitution of Kenya 2010, Kenya Vision 2030 and the Sessional Paper No. 3 of 2009 on National Land Policy all call for a clear framework for effectively addressing the challenges related to land use.

L’analyse des aménagements hydro-agricoles en Afrique de l’Ouest permet de tirer des leçons concernant l’affectation foncière, qui peuvent servir pour orienter les aménagements en cours, ou ceux qui sont prévus dans les années à venir. Sans affectation foncière adéquate, les objectifs principaux des barrages – la lutte contre la pauvreté et l’amélioration de la production nationale de céréales – pourront difficilement être atteints.