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News articles on agroforestry

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Mongabay.com news articles on agroforestry in blog format. Updated regularly.

Asia's conversion of forests for industrial rubber plantations hurts the environment

(05/21/2009) Policies promoting industrial rubber plantations over traditional swidden, or slash-and-burn, agriculture across Southeast Asia may carry significant environmental consequences, including loss of biodiversity, reduction of carbon stocks, pollution and degradation of local water supplies, report researchers writing in Science. Conducting field work in the Xishuangbanna prefecture of China's Yunnan province and assessing broader regional trends, Alan Ziegler of the National University of Singapore and colleagues argue that policies favoring agricultural intensification over small-scale slash-and-burn have encouraged the rapid expansion of rubber plantations across more than 500,000 hectares (1,930 square miles) of montane forest in China, Laos, Thailand, Vietnam, Cambodia, and Myanmar. Despite widespread perception among authorities that "swidden cultivation is a destructive system that leads only to forest loss and degradation", the researchers found that the transition to industrial plantations has not necessarily been a boon to the environment.


Ecological Cacao? Thinking about all sides of your chocolate bar

(04/01/2009) As concern for the preservation of forest eco-systems in the tropics has increased over past decades, there has been a growing consideration for ways to harmonize tropical agricultural production with the surrounding environment. The idea of shade grown products, especially coffee and cacao, have become the focus of scientific study and of marketable interest for environmentally conscientious consumers. However, the practical and dependable nature of the practice of shade growing for farmers and conservation objectives is still the matter of some debate.


Sustainable farming is the only way to feed the planet going forward

(02/05/2009) Embracing more sustainable farming methods is the only way for the world's farmers to grow enough food to meet the demands of a growing population and respond to climate change, the top crop expert with the United Nations Food and Agriculture Organization (FAO) said today.


Secondary forest should become new conservation initiative

(01/19/2009) “I want to convince you we need to go beyond primary forests to preserve biodiversity”, Robin Chazdon told an audience at the National Natural History Museum during a symposium on the tropics. Chazdon, a professor of ecology and evolutionary biology at the University of Connecticut, has been studying secondary growth forests for over eighteen years. Secondary forests are those forests in the process of regrowth after being used for agriculture or logging. In her study area of NE Costa Rica, many of these forests were converted to pastures in the 1970s and 1980s, but have since been abandoned. In her presentation Chazdon argued that to preserve biodiversity numerous types of human-impacted landscapes, such as secondary forest, require attention by the conservation community.


Symposium tackles big question: how many species will survive our generation

(01/16/2009) Nine scientists dusted off their crystal balls Monday at the National Museum of Natural History in Washington DC, weighing in on the future of the world’s tropical forest. Despite the most up-to-date statistics, prognosis for the future of tropical forests varied widely. In the last few years a schism has occurred among biologists regarding the future of the tropics. No tropical scientist denies that rainforests and the species which inhabit them face unprecedented threats; neither do they argue that some of these forested regions and species will likely not survive the next fifty years. What has sparked debate, sometimes heated, is how bad will is it really? When the dust settles, what percentage of species will survive and how much forest will remain?


Shade-grown coffee preserves native tree diversity

(12/23/2008) A new study finds that shade-grown coffee protects the biodiversity of tree species, as well as those of birds and bats. Published in Current Biology, the study found that native trees in shade-grown coffee plantations aid the overall species’ gene flow and can become a focal point for reforestation.


REDD may harm forest people, alleges report

(12/02/2008) A new report finds that the World Bank is not doing enough to protect indigenous rights under its mechanism to reduce emissions from deforestation and forest degradation (REDD).


Carbon market could pay poor farmers to adopt sustainable cultivation techniques

(11/26/2008) The emerging market for forest carbon could support agroforestry programs that alleviate rural poverty and promote sustainable development, states a new report issued by the World Agroforestry Center (ICRAF).


Rainforest agriculture preserves bird biodiversity in India

(11/04/2008) Conservation of biodiversity and agriculture have long been considered conflicting interests. Numerous studies have shown that when agricultural replaces a forest, biodiversity greatly suffers. However a new study finds it doesn't have to be that way.


Eco-friendly shade-grown coffee buffers farmers against climate change

(10/03/2008) Shade-grown coffee plantations will be more resistant to climate change than conventional plantations, report researchers writing in the journal Bioscience. Shade grown coffee is already lauded for its environmental benefits including supporting high levels of biodiversity and requiring less fertilizers and pesticides.


Pre-Colombian Amazonians lived in sustainable 'urban' society

(08/28/2008) Researchers have uncovered new evidence to support the controversial theory that parts of the Amazon were home to dense "urban" settlements prior to the arrival of Europeans in the 15th century. The study is published this Friday in the journal Science. Conducting archeological excavations and aerial imagery across a number of sites in the Upper Xingu region of the Brazilian Amazon, a team of researchers led by Michael Heckenberger found evidence of a grid-like pattern of 150-acre towns and smaller villages, connected by complex road networks and arranged around large plazas where public rituals would take place. The authors argue that the discoveries indicate parts of the Amazon supported "urban" societies based around agriculture, forest management, and fish farming.


Defaunation, like deforestation, threatens global biodiversity

(05/20/2008) Loss of wildlife is a subtle but growing threat to tropical forests, says a leading plant ecologist from Stanford University. Speaking in an interview with mongabay.com, Dr. Rodolfo Dirzo says that the disappearance of wildlife due to overexploitation, fragmentation, and habitat degradation is causing ecological changes in some of the world's most biodiverse tropical forests. He ranks defaunation — as he terms the ongoing biological impoverishment of forests — as one of the world's most significant global changes, on par with environmental changes like global warming, deforestation, and shifts in the nitrogen cycle.


Carbon credits for forest conservation concept faces challenges

(11/27/2007) While environmentalists, scientists, development exports, and policymakers across the political spectrum are ethusiastic about the idea of offsetting carbon emissions by preventing deforestation (a concept known as "avoided deforestation" or Reduced Emissions from Deforestation and Degradation (REDD)), the concept still faces many challenges, especially in implementation.


Can remittances and globalization help the environment?

(09/05/2007) Globalization and other economic trends appear to be helping the degraded forests of El Salvador recover, reports new research that evaluated the impact of global trade, land policy changes, and remittances on forest cover. The study, by Susanna B. Hecht of University of California at Los Angeles and Sassan S. Saatchi of the California Institute of Technology, used socioeconomic data, land-use surveys, and satellite imagery to document significant increases in the area of El Salvador covered by both light woodlands and forest since peace accords were signed in the warn-torn country in 1992.


Coffee plantations may preserve tropical bird species

(06/18/2007) Agricultural areas offer opportunities for conservation in deforested landscapes in the tropics, reports a study published in the April 2007 issue of the journal conservation Biology by Stanford University biologists.


Globalization could save the Amazon rainforest

(06/03/2007) The Amazon basin is home to the world's largest rainforest, an ecosystem that supports perhaps 30 percent of the world's terrestrial species, stores vast amounts of carbon, and exerts considerable influence on global weather patterns and climate. Few would dispute that it is one of the planet's most important landscapes. Despite its scale, the Amazon is also one of the fastest changing ecosystems, largely as a result of human activities, including deforestation, forest fires, and, increasingly, climate change. Few people understand these impacts better than Dr. Daniel Nepstad, one of the world's foremost experts on the Amazon rainforest. Now head of the Woods Hole Research Center's Amazon program in Belem, Brazil, Nepstad has spent more than 23 years in the Amazon, studying subjects ranging from forest fires and forest management policy to sustainable development. Nepstad says the Amazon is presently at a point unlike any he's ever seen, one where there are unparalleled risks and opportunities. While he's hopeful about some of the trends, he knows the Amazon faces difficult and immediate challenges.

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