UN Calls for Better Grain Storage to Reduce Africa’s Post-harvest Losses

31 May 2011 – Large amounts of food in sub-Saharan Africa goes to waste as a result of inappropriate storage, the United Nations Food and Agriculture Organization (FAO) said in a report unveiled today, which calls for investing in post-harvest technologies to reduce to the losses and boost the continent’s food security.

The joint FAO-World Bank report, entitled Missing Food: The Case of Postharvest Grain Losses in Sub-Saharan Africa, estimates the value of grain losses in sub-Saharan Africa at around $4 billion a year.

“This lost food could meet the minimum annual food requirements of at least 48 million people,” said Maria Helena Semedo, the FAO Assistant Director-General. “If we agree that sustainable agricultural systems need to be developed to feed 9 billion people by 2050, addressing waste across the entire food chain must be a critical pillar of future national food strategies,” she said.

According to estimates provided by the African Postharvest Losses Information System, physical grain losses prior to processing can range from 10 to 20 per cent of African annual production, which is worth $27 billion.

Losses occur when grain decays or is infested by pests, fungi or microbes, and physical losses, but the waste can also be economic, resulting from low prices and lack of access to markets for poor quality or contaminated grain.

According to the report, food losses contribute to high food prices by removing part of the food supply from the market. They also have a negative environmental impact as land, water and resources such as fertilizer and energy are used to produce, process, handle and transport food that no one consumes.

“Reducing food losses is increasingly recognized as part of an integrated approach to realizing agriculture’s full potential, along with making effective use of today’s crops, improving productivity on existing farmland, and sustainably bringing additional acreage into production,” said Jamal Saghir, the Director of the Sustainable Development Department of the World Bank’s Africa Region.

A variety of practices and technologies are available for reducing post-harvest losses, including crop “protectants” and storage containers such as hermetically sealed bags and metallic silos, the report notes.

Those technologies have proved successful in Asia, but more research is needed to identify methods adapted to local environments in Africa. To succeed, interventions must be sensitive to local conditions and practices.

The report recommends that governments create enabling conditions for farmers by reducing market transaction costs through investing in infrastructure such as roads, electricity and water, and strengthening agricultural research and extension services.

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Higher Density Means World Forests Are Capturing More Carbon, News Release

University of Helsinki, Finland and Rockefeller University, USA

Study challenges carbon storage measurements based on forest area;

Several national increases of density and / or area signal “The Great Reversal”

is underway in forests globally after centuries of loss and decline

Forests in many regions are becoming larger carbon sinks thanks to higher density, US and European researchers say in a new report.

In Europe and North America, increased density significantly raised carbon storage despite little or no expansion of forest area, according to the study, led by Aapo Rautiainen of the University of Helsinki, Finland, and published by the online, open-access journal PLoS One.

Even in the South American nations studied, more density helped maintain regional carbon levels in the face of deforestation.

The researchers analyzed information from 68 nations, which together account for 72% of the world’s forested land and 68% of reported carbon mass.  They conclude that managing forests for timber growth and density offers a way to increase stored carbon, even with little or no expansion of forest area.

“In 2004 emissions and removals of carbon dioxide from land use, land-use change and forestry comprised about one fifth of total emissions. Tempering the fifth by slowing or reversing the loss of carbon in forests would be a worthwhile mitigation.

The great role of density means that not only conservation of forest area but also managing denser, healthier forests can mitigate  carbon emission,” says Mr. Rautiainen.

Co-author Paul E. Waggoner, a forestry expert with Connecticut’s Agricultural Experiment Station, says remote sensing by satellites of the world’s forest area brings access to remote places and a uniform method. “However, to speak of carbon, we must look beyond measurements of area and apply forestry methods traditionally used to measure timber volumes.”

Says co-author Iddo Wernick of The Rockefeller University’s Program for the Human Environment: “Forests are like cities – they can grow both by spreading and by becoming denser.”

The authors say most regions and almost all temperate nations have stopped losing forest and the study’s findings constitute a new signal of what co-author Jesse Ausubel of Rockefeller calls “The Great Reversal” underway in global forests after centuries of loss and decline.  “Opportunities to absorb carbon and restore the world’s forests can come through increasing density or area or both.”

To examine how changing forest area and density affect timber volume and carbon, the study team first focused on the United States, where the US Forest Service has conducted a continuing inventory of forest area, timberland area, and growing stock since 1953.

They found that while US timberland area grew only 1% between 1953 and 2007, the combined national volume of growing stock increased by an impressive 51%.  National forest density increased substantially.

For an international perspective, the research team examined the 2010 Global Forest Resources Assessment compiled by the UN Food and Agriculture Organization (FAO), which provides consistent figures for the years 1990-2010.

The data reveal uncorrelated changes of forest area and density. Countries in Africa and South America, which lost about 10% of their forest area over the two decades, lost somewhat less carbon, indicating a small rise in forest density.

In Asia during the second decade of the study period, density rose in 10 of the region’s 21 countries.  Indonesia’s major loss of density and sequestered carbon, however, offset any gain in carbon storage in other Asian nations.

Europe, like the US, demonstrated substantial density gains, adding carbon well in excess of the estimated carbon absorbed by the larger forested area.

Says study co-author Pekka Kauppi, of the University of Helsinki, Finland: “With so much bad news available on World Environment Day, we are pleased to report that, of 68 nations studied, forest area is expanding in 45 and density is also increasing in 45.  Changing area and density combined had a positive impact on the carbon stock in 51 countries.”

Finnish forest - then and now (Photo credit : I.K. Inha & K.A. Ennola
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Millions in Niger need help to avoid another food crisis, warn UN agencies

 20 January 2011 – The United Nations food agencies are urging continued assistance for Niger, where acute malnutrition rates remain high despite a good harvest and millions need help to avoid another food crisis.

Last year the Government of Niger, supported by the UN, launched a massive humanitarian intervention which averted the worst effects of a food and nutrition crisis that threatened the lives of more than seven million people and the livelihoods of the country’s farmers and pastoralists.

As part of that effort, the World Food Programme (WFP) delivered emergency food assistance to more than 5 million people, including vulnerable groups such as children under five, and pregnant or lactating women.

In addition, the Food and Agriculture Organization (FAO) provided 13,000 tonnes of animal feed and distributed over 3,400 tonnes of quality seeds, covering 94 per cent of affected villages.

These interventions, coupled with a good rainy season in 2010, led to a 60 per cent increase in domestic cereal production. Livestock that survived the drought were also restored to health as pastures returned.

However, according to a joint assessment published today by the two Rome-based UN agencies, the acute malnutrition rate was still above 15 per cent in most parts of the country in October and November, reaching 17 per cent in the area around Agadez and Zinder.

“Food and non-food assistance is still necessary to reconstitute the resilience capacity of the affected populations to allow them to have independent access to food,” said the report.

The agencies are calling for assistance to pastoralists to help them replenish their livestock, help with restoring cereal banks and reconstituting the national grain stock, as well as continued support of feeding centres for malnourished people.

Assistance needs to begin immediately, they stressed, so that farmers will have the necessary quality seeds and fertilizers before the next planting season that starts in May.

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