Farms Around the World Have More Trees than Expected
The World Agroforestry Centre has recently released a paper titled ” Trees on Farm: Analysis of Global Extent and Geographical Patterns of Agroforestry.” The researchers used five global geodata sets to estimate the percent tree cover on 22 million square kilometers of agricultural land around the world. They were surprised to find that nearly half of that land had 10% or more tree cover (which is considered “significant” from an agroforestry point of view). The area involved is vast – as large as the Amazon basin.
Even for North America, the percentages were surprisingly high (39% over 10% cover, 17% over 30%). Values in Europe were similar. The highest levels are in central America (98% above 10% cover), South America (81%), and Southeast Asia (82%). Overall, the lowest tree cover is in the most arid areas, but even there >20% of the farmland has 10% tree cover.
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