Annual row crops dominate agriculture around the world and have considerable negative environmental impacts, including significant greenhouse gas emissions. Transformative land‐use solutions are necessary to mitigate climate change and restore critical ecosystem services. Alley cropping (AC)—the integration of trees with crops—is an agroforestry practice that has been studied as a transformative, multifunctional land‐use solution. In the temperate zone, AC has strong potential for climate change mitigation through direct emissions reductions and increases in land‐use efficiency via overyielding compared to trees and crops grown separately. In addition, AC provides climate change adaptation potential and ecological benefits by buffering alley crops to weather extremes, diversifying income to hedge financial risk, increasing biodiversity, reducing soil erosion, and improving nutrient‐ and water‐use efficiency. The scope of temperate AC research and application has been largely limited to simple systems that combine one timber tree species with an annual grain. We propose two frontiers in temperate AC that expand this scope and could transform its climate‐related benefits: (i) diversification via woody polyculture and (ii) expanded use of tree crops for food and fodder. While AC is ready now for implementation on marginal lands, we discuss key considerations that could enhance the scalability of the two proposed frontiers and catalyze widespread adoption.
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Originally published in the Wiley Online Library
Now that almost 50 countries from around the world have pledged to restore 160 million hectares of deforested or degraded land, it is time to put down roots by turning those promises into flourishing landscapes that benefit local communities, said top government officials who met March 16-17 in Foz de Iguaçu, Brazil.
One key is the involvement of local governments and local communities, delegates said.
The meeting was the third high-level gathering of the Bonn Challenge, an initiative launched in 2011 to restore 150 million hectares of deforested and degraded land by 2020 and 350 million hectares by 2030.
But while each country has pledged a certain number of hectares, both the work of landscape restoration and its benefits are executed at a very local level.
And the details vary from place to place, as restoration experts found in Malawi when they set out to devise a plan for meeting the country’s target of bringing 4.5 million hectares under restoration by 2030. A commission traveled to every district in the country, meeting with local government officials, traditional community leaders and members of local communities, said Clement Chilima, Malawi’s director of forestry.
The goal was to “find out from (those people) what they, as owners of the land, think are degraded areas,” he said.
The definitions of degradation differed, but people generally used the word to describe “an area that is no longer as useful as it used to be,” Chilima said. “Mainly, it is the lost use of land.”
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Originally published on the Landscape News Website.
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Evergreen agriculture, a form of agroforestry, is an affordable solution to agricultural challenges. The approach integrates trees with food crops and livestock to create more sustainable and productive agricultural systems for smallholding farm families. Evergreen agriculture is already positively transforming the lives of farmers in more than 20 African countries. Through restoring exhausted soils with richer sources of organic nutrients, farmers are enjoying higher crop yields, more fodder for livestock and increased supply of firewood for household consumption, leading to greater incomes. With support from the Innovation Transfer into Agriculture: Adaptation to Climate Change project, leading farmers from Siaya county in Kenya have begun to practise evergreen agriculture and share the transformations they have experienced.
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Improved soil fertility, suppression of striga weeds, increased crop yields, nutritious fodder for livestock, and more firewood, are just some of the benefits farmers derive from intercropping fertiliser shrubs and crops on farms.
This practice is known as EverGreen Agriculture
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