Matches in DBpedia 2016-04 for { ?s ?p "The eastern savannas of the United States covered large portions of the east side of the continent until the early 20th century. These were in a fire ecology of open grassland and forests with low ground cover of herbs and grasses.The frequent fires which maintained the savannas were started by the region's many thunderstorms and Native Americans, with most fires burning the forest understory and not affecting the mature trees above. Before the arrival of humans about 15,000 years ago, lightning would have been the major source of ignition, the region having the most frequent wind and lightning storms in North America. The European settlers who displaced the natives blended the local use of fire with their customary use of fire as pastoral herdsmen in the British Isles, Spain, and France.In the southern pine savanna, each area burned about every 1–4 years; after settlers arrived burning happened about every 1–3 years. In oak–hickory areas, estimates range from 3 to 14 years, although trails were kept open with fire."@en }
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- Eastern_savannas_of_the_United_States abstract "The eastern savannas of the United States covered large portions of the east side of the continent until the early 20th century. These were in a fire ecology of open grassland and forests with low ground cover of herbs and grasses.The frequent fires which maintained the savannas were started by the region's many thunderstorms and Native Americans, with most fires burning the forest understory and not affecting the mature trees above. Before the arrival of humans about 15,000 years ago, lightning would have been the major source of ignition, the region having the most frequent wind and lightning storms in North America. The European settlers who displaced the natives blended the local use of fire with their customary use of fire as pastoral herdsmen in the British Isles, Spain, and France.In the southern pine savanna, each area burned about every 1–4 years; after settlers arrived burning happened about every 1–3 years. In oak–hickory areas, estimates range from 3 to 14 years, although trails were kept open with fire.".
- Q5330611 abstract "The eastern savannas of the United States covered large portions of the east side of the continent until the early 20th century. These were in a fire ecology of open grassland and forests with low ground cover of herbs and grasses.The frequent fires which maintained the savannas were started by the region's many thunderstorms and Native Americans, with most fires burning the forest understory and not affecting the mature trees above. Before the arrival of humans about 15,000 years ago, lightning would have been the major source of ignition, the region having the most frequent wind and lightning storms in North America. The European settlers who displaced the natives blended the local use of fire with their customary use of fire as pastoral herdsmen in the British Isles, Spain, and France.In the southern pine savanna, each area burned about every 1–4 years; after settlers arrived burning happened about every 1–3 years. In oak–hickory areas, estimates range from 3 to 14 years, although trails were kept open with fire.".