Passar para o conteúdo principal

page search

Displaying 11353 - 11364 of 17898

Optimal Dynamic Management of Agricultural Land-Uses: An Application of Regime Switching

Journal Articles & Books
Março, 2011

The capacity of global agricultural production to meet increased demand for food from population growth and wealth accumulation is threatened by extensive land degradation. Nonetheless, previous research has focused primarily on the dynamic implications of input management and ignored land-use choice. This paper extends this theory through an examination of the intertemporal management of agricultural land through the use of non-crop inputs, such as fertilizer, and land uses that either degrade or restore productivity.

An Overview of the Canadian Agriculture and Agri-Food System 2011

Reports & Research
Março, 2011
Canadá

This 2011 report provides an economic overview of the Canadian agriculture and agri-food system.It is meant to be a multi-purpose reference document to provide:an introduction to the agriculture and agri-food system; a snapshot of structural changes that are occurring throughout the system in response to various factors; and background data and information to inform public discussions on challenges and opportunities facing the Canadian agriculture and agri-food system.

Our precious resource

Journal Articles & Books
Fevereiro, 2011
Global

The importance of forests for climate change mitigation and species conservation, as water stores and oxygen producers, soil protectors and humus providers, is well known. However, over 13 million hectares of forest are lost each year, mainly in the tropics.

Certification - the magic bullet?

Journal Articles & Books
Fevereiro, 2011
Global

Certification is viewed as one of the most effective ways of curbing unregulated logging and conserving natural forests in the tropics. In the meantime, there are several dozen certifying organisations. Among these, the Forest Stewardship Council (FSC) and the Programme for the Endorsement of Forest Certification (PEFC) lead the field worldwide.

Green light for REDD+

Journal Articles & Books
Fevereiro, 2011
Global

Every year, 13 million hectares of forest are lost worldwide; that is an area the size of Austria and Switzerland combined. 90 percent of this deforestation involves tropical forests. Forest loss has devastating effects on the climate and is the source of between 15 and 20 percent of global greenhouse gas emissions. If global warming is to be kept below the critical threshold of two degrees Celsius, forest loss and degradation must be halted without delay

Carbon labels - pitfalls for developing countries?

Journal Articles & Books
Fevereiro, 2011
Global

Carbon labels for food are a new strategy of industrialised countries to reduce climate change-relevant gas emissions in agriculture. However, not every label includes the measurement of all emissions and may disadvantage and even exclude exporting farmers from developing countries. Policy-makers should reconsider this approach or at least focus on fair and non-discriminatory labels.

If women hold up half the sky, how much of the world’s food do they produce?

Reports & Research
Fevereiro, 2011
Global

This paper explores, conceptually and empirically, the question of how much food is produced by women. Data for labour inputs and agricultural output are used to assess women’s contribution to food and agricultural production. The study also assesses gender differences in productivity. The paper finds that a precise measure of women’s contribution to food production is impossible to establish. In general women do not produce food separately from men and it is impossible to disaggregate men and women’s contributions either in terms of labor supplied or in terms of output produced.

Evaluación integrada de la sostenibilidad ambiental, económica y social del cultivo de maíz en Chiapas, México

Journal Articles & Books
Fevereiro, 2011
México
Espanha

En este estudio se evaluó la sostenibilidad de los agroecosistemas tradicionales y alternativos de producción de maíz en tres Ejidos de la Región Selva de Chiapas, mediante la aplicación del enfoque agroecológico (MESMIS). El estudio se realizó en dos ciclos agrícolas: milpa y tornamil. En el primero se evaluaron los sistemas de roza-tumba-quema (R‑T‑Q), sin quema y en sucesión de nescafé (Mucuna deeringiana Bort.). En el segundo ciclo se analizaron tres sistemas sin quema con diferentes periodos de nescafé, y se modificó la densidad poblacional para analizar su efecto sobre la producción.

Forests and Climate Change After Cancun: An Asia-Pacific Perspective

Reports & Research
Fevereiro, 2011
Global
South-Eastern Asia

The United Nations climate change talks in Cancun changed the shape of REDD+ negotiations and global forest policies. What effect will the decisions from the talks have on forests and forest users in Asia and the Pacific? Eleven climate change and forestry experts gathered to reflect on these issues, and this booklet summarizes their responses to 12 key questions.

Uganda Dairy Supply Chain Risk Assessment

Reports & Research
Training Resources & Tools
Fevereiro, 2011
Uganda
África

Cattle are one of the main instruments for economic (e.g., milk, meat, and cattle sale) and social (e.g., marriage, death, dispute settlement, and gift giving) exchange in Uganda. They serve as the main source of livelihood for a large majority of rural Ugandans, especially in the cattle corridor. Recent statistics demonstrate that the livestock sector contributes 13.1 percent of the agricultural gross domestic product (GDP) and 5 percent of the national GDP.