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Monitoring desertification in a Savannah region in Sudan using Landsat images and spectral mixture analysis

Journal Articles & Books
декабря, 2012
Sudan

Two Landsat images, acquired in 1987 and 2008, were analyzed to evaluate desertification processes in central North Kurdufan State (Sudan). Spectral Mixture Analysis (SMA) and multitemporal comparison techniques (change vector analysis) were applied to estimate the long-term desertification/re-growing of vegetation cover over time and in space. Site-specific interactions between natural processes and human activity played a pivotal role in desertification. Over the last 21 years, desertification significantly prevailed over vegetation re-growth, particularly in areas around rural villages.

Driving forces responsible for aeolian desertification in the source region of the Yangtze River from 1975 to 2005

Journal Articles & Books
декабря, 2012
China

The Yangtze River is the China’s longest river and the third-longest river in the world. The river’s source region in the Qinghai-Tibet Plateau is especially sensitive to global environmental change because of its high elevation and cold environment. Under the influence of global warming, aeolian desertified land has expanded rapidly in this area. To assess the trends in aeolian desertification from 1975 to 2005, remote-sensing and GIS technology were used to monitor the extent of aeolian desertification in 1975, 1990, 2000, and 2005.

Degradation of soils as a result of long-term human-induced transformation of the environment in Iran: an overview

Journal Articles & Books
декабря, 2012
Iran

Human-induced soil degradation is a serious and complex environmental challenge in Iran. For a long time, human activities, namely the overuse of land, have been influencing the natural processes on and in soils; therefore, various types of soil degradation can be observed in many parts of the country. The understanding and the consideration of direct and indirect effects of human activities on soils are indispensable for the prediction of the human impact on soil degradation processes.

Temporal-spatial variability of desertification in an agro-pastoral transitional zone of northern Shaanxi Province, China

Journal Articles & Books
декабря, 2012
China

Desertification has been widely treated as one of the major environmental hazards in the world by scientific communities and the public. Monitoring the dynamics and causes of desertification is essential to provide important instruction for desertification control strategies and rational planning of land use in arid and semi-arid areas.

Fertile ground? Options for a science–policy platform for land

Journal Articles & Books
декабря, 2012

The United Nations Convention to Combat Desertification (UNCCD) remains the only ‘Rio Convention’ that is not well served by the scientific community and lacks the equivalent of an IPCC (Intergovernmental Panel on Climate Change) or the proposed IPBES (Intergovernmental Science–Policy Platform on Biodiversity and Ecosystem Services).

experience of land cover change detection by satellite data

Journal Articles & Books
декабря, 2012
Kazakhstan

Sigificant dependence from climate and anthropogenic influences characterize ecological systems of Kazakhstan. As result of the geographical location of the republic and ecological situation vegetative degradation sites exist throughout the territory of Kazakhstan. The major process of desertification takes place in the arid and semi-arid areas. To allocate spots of stable degradation of vegetation, the transition zone was first identified. Productivity of vegetation in transfer zone is slightly dependent on climate conditions.

Pre-treatment of olive mill wastewaters at laboratory and mill scale and subsequent use in agriculture: Legislative framework and proposed soil quality indicators

Journal Articles & Books
декабря, 2012

The present study investigates the potential of pre-treatment of olive mill wastewaters (OMW) at laboratory and mill scale and their subsequent use in agriculture to satisfy irrigation and fertilisation needs for widely cultivated crops. The ultimate objective of this approach is the development of a feasible decentralized treatment scheme in parts of the Mediterranean region where most olive mills are small family businesses, soils have low organic matter and the risk of desertification is high.

Potential of five plants growing on unproductive agricultural lands as biodiesel resources

Journal Articles & Books
декабря, 2012
China

Fossil fuels are being heavily depleted due to increasing anthropogenic activities worldwide, and burning them contributes to global climate warming and air pollution. Vegetable oils are one of the main feedstocks for biodiesel: they are non-toxic and environmentally friendly. Rising global population, decreasing arable lands and a decline in crop yields from desertification and salinization demands that biodiesel feedstock be grown on unproductive agricultural lands.

History continuous: Drowning and desertification. Linking past and future in the Dutch landscape

Journal Articles & Books
декабря, 2012
Netherlands

Whether people like it or not, landscapes change. Accepting this and understanding processes of landscape change are prerequisites for the maintenance and development of specific landscape- or ‘natural’ values. This paper discusses the relevance of landscape historical information and insights to the management of landscape change. The focus is on the Netherlands, especially the Pleistocene inland part of the country and on the period 1000BP - present.

A process for effective desertification mitigation

Reports & Research
декабря, 2012

in these ecosystems can easily result in widespread and severe land degradation and thus desertification.
Combined with global issues such as climate change, economic disparities, migration, and competing claims
on land, this often leads to a vicious cycle of aridity, land degradation, and productivity loss. In addition to
the harsh environmental conditions limiting land productivity, the socio-economic situation in drylands can
pose challenges as well, given that these regions are often characterised by remoteness, marginality, lowproductivity

Desire for greener land : options for sustainable land management in drylands

Journal Articles & Books
декабря, 2012

Desire for Greener Land compiles options for Sustainable Land Management (SLM) in drylands. It is a result of the integrated research project DESIRE (Desertification Mitigation and Remediation of Land - A Global Approach for Local Solutions). Lasting five years (2007–2012) and funded within the EU’s Sixth Framework Programme, DESIRE brought together the expertise of 26 international research institutes and non-governmental organisations.

Climate Resilient Cities : A Primer on Reducing Vulnerabilities to Disasters

декабря, 2012

Climate resilient cities a primer on reducing vulnerabilities to disasters is prepared as a guide for local governments in the East Asia Region to better understand the concepts and consequences of climate change; how climate change consequences contribute to urban vulnerabilities; and what is being done by city governments in East Asia and around the world to actively engage in learning, capacity building, and capital investment programs for building sustainable, resilient communities.