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PowerPoint Presentation: Land and climate: Regional context and implications

Multimedia
Décembre, 2019
Asie central

Arid and semi-arid biomes support valuable ecosystems with livelihoods linked to rain-fed agriculture and pastoralism and have unique biodiversity and cultural values. However, desertification is land degradation in dry-lands that leads to loss of productivity and ecosystem services. Climate change is expected to increase arid biomes and stress on dry-lands due to increase in temperature and decrease in precipitation that will impact vegetation, livestock and people.

Europeans’ Strategic Research Agenda for Integrated Spatial Planning, Land Use and Soil Management.

Journal Articles & Books
Décembre, 2018
Global

Soil provides us with essential services. We grow our food in it, it filters rainwater before it reaches aquifers, it supports our buildings, it hosts diverse life forms. Europeans need multi-functional and healthy soils locally and globally to maintain this natural capital while satisfying the needs of a prosperous society. Soil must be safeguarded by urban and rural spatial planning and sustaining soil and land management based on applying the best available knowledge.

Global Need for Food, Fibre and Fuel. Land Use Perspectives on Constraints and Opportunities in Meeting Future Demand

Journal Articles & Books
Décembre, 2012
Global

In the last ten years or so, the global interest in, and concerns about, the issue of how the world shall provide a growing population with sufficient food, bioenergy and wood raw material has attracted increasing attention. Will land and water resources be enough, how shall they be best managed to achieve increased production and productivity without causing far-reaching negative environmental and social side-effects, will climate change make solutions more difficult, will there be financial means and know-how available to address all challenges and opportunities?

The potential of agricultural land management to contribute to lower global surface temperatures

Journal Articles & Books
Décembre, 2018
Global

Removal of atmospheric carbon dioxide (CO2) combined with emission reduction is necessary to keep climate warming below the internationally agreed upon 2°C target. Soil organic carbon sequestration through agricultural management has been proposed as a means to lower atmospheric CO2 concentration, but the magnitude needed to meaningfully lower temperature is unknown. The authors show that sequestration of 0.68 Pg C year−1 for 85 years could lower global temperature by 0.1°C in 2100 when combined with a low emission trajectory [Representative Concentration Pathway (RCP) 2.6].

Understanding Desertification and Land Degradation Trends. Proceedings of the UNCCD First Scientific Conference, 22–24 September 2009, during the UNCCD Ninth Conference of Parties, Buenos Aires, Argentina

Journal Articles & Books
Décembre, 2009
Global

The UNCCD is unique as the only global policy body focused on combating desertification, land degradation and drought, which I will call “DLDD” from now on. The UNCCD recognizes the need to improve the scientific basis supporting its work. It has given us the responsibility of re-invigorating that scientific process.
A successful conference will go a long way towards the renewal of the UNCCD, as called for in the UNCCD’s
10-Year Strategy.

The economics of desertification, land degradation and drought toward an integrated global assessment

Journal Articles & Books
Décembre, 2011
Global

Since the publication of the Report of the Brundtland Commission (Our Common Future) in 1987, and the consequent Earth Summit on sustainable development, global attention on natural resource scarcity and degradation has been increasing, because of climate change and rising food and energy prices. This awareness, in turn, has led to growing interest in land investments by the private and public sectors. Despite this interest, however, land degradation has not been comprehensively addressed at the global level or in developing countries.

Global land use implications of dietary trends

Journal Articles & Books
Décembre, 2018
Global

Global food security and agricultural land management represent two urgent and intimately related challenges that humans must face. The authors quantify the changes in the global agricultural land footprint if the world were to adhere to the dietary guidelines put forth by the United States Department of Agriculture (USDA), while accounting for the land use change incurred by import/export required to meet those guidelines. The authors analyze data at country, continental, and global levels.

Nature-Based Solutions for agricultural water management and food security

Journal Articles & Books
Novembre, 2018
Égypte
Soudan
Kenya
Tanzania
Afrique australe
Afrique du Sud
Nigéria
Mexique
Brésil
Colombie
Équateur
Pérou
États-Unis d'Amérique
Japon
Philippines
Iran
Népal

Agriculture influences and shapes the world’s ecosystems, but not always in a positive way. More than 2.5 billion people are globally involved as stewards of land and water ecosystems that constitute the natural resource base for feeding the current and future world population. Yet, conventional agronomic interventions based on ‘hard’ agricultural engineering compromise various eco-services that are required for sustainable agricultural development.

ELD initiative : user guide

Journal Articles & Books
Novembre, 2015
Global

Land degradation and desertification reduce the provision of ecosystem services by lands and soils. This constrains development, reduces water, food, and energy security, and triggers resource conflicts. Although biophysical processes and economic impacts are increasingly understood, efforts to combat degradation have been failing thus far to prevent further losses of land productivity, a cost estimated at 42 billion USD/year (Dregne & Chou, 1992; Requier-Desjardins, 2007).

Assessment of the global impact of 21st century land use change on soil erosion

Journal Articles & Books
Décembre, 2013
Global

Human activity and related land use change are the primary cause of accelerated soil erosion, which has substantial implications for nutrient and carbon cycling, land productivity and in turn, worldwide socio-economic conditions. Here the authors present an unprecedentedly high resolution (250 × 250 m) global potential soil erosion model, using a combination of remote sensing, GIS modelling and census data. The authors challenge the previous annual soil erosion reference values as our estimate, of 35.9 Pg yr−1 of soil eroded in 2012, is at least two times lower.

People in marginal drylands. Managing natural resources to improve human well-being

Journal Articles & Books
Décembre, 2008
Global

Change in land management practices and governmental policies is urgently needed to reverse the continuing decline of marginal drylands. Marginal drylands are fragile ecosystems that sustain the livelihoods of millions of poor people in developing countries. However, their capacity to provide these services is continuously declining due to desertification, resulting in dwindling land productivity, and affecting human well-being and development opportunities in many marginal drylands.

Land Matters for Climate Reducing the Gap and Approaching the Target

Journal Articles & Books
Novembre, 2015
Global

The land use sector represents almost 25% of total global emissions. These emissions can be reduced. There is also great potential for carbon sequestration through the scaling up, and scaling out, of proven and effective practices. Improved land use and management, such as low-emissions agriculture, agro-forestry and ecosystem conservation and restoration could, under certain circumstances, further reduce the remaining emissions gap by up to 25%. These climate-smart land management practices nearly always come with adaptation co-benefits.