Photo Gallery: Grasslands, Prairies, and Savannas

雪儿 · 发表于: 2011-10-4 12:17:42

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Prairie Pasture

Photograph by Annie Griffiths Belt, National Geographic

Ranchers herd cattle across the shortgrass prairie of Montana on their way to winter pasturelands.

雪儿 · 发表于: 2011-10-4 12:18:05

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Coreopsis Wildflowers

Photograph by Joel Sartore, National Geographic

Coreopsis wildflowers bloom on the Texas coastal prairie.

雪儿 · 发表于: 2011-10-4 12:18:29

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Snow Prairie Fence

Photograph by Tom Murphy, National Geographic

An old rail fence runs through snow-dusted prairie. Much of the prairie land in the United States has been developed or converted to agricultural purposes, leaving only a few state and national parks as a reminder of their wild, wide-open past

雪儿 · 发表于: 2011-10-4 12:18:51

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American Bison

Photograph by Lela Bouse-McCracken, Your Shot

An American bison stands in a field on the Tallgrass Prairie Preserve in Oklahoma. The preserve, maintained by the Nature Conservancy, is the largest preserved portion of what was once 140 million acres (362.5 million hectares) of grassland in the American Midwest. There are about 2,500 American bison, which were once hunted to a few hundred animals, roaming the preserve.

雪儿 · 发表于: 2011-10-4 12:19:16

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Swarm of Insects

Photograph by Maria Stenzel, National Geographic

A swarm of insects hovers over grassland in Madagascar. The island nation has problems with locusts, insects that can destroy crops and grasslands quickly.

雪儿 · 发表于: 2011-10-4 12:19:54

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Wisp Grass Badlands

Photograph by Raymond Gehman, National Geographic

Wisp grass seedpods sway in the wind in South Dakota's Badlands National Park. Fifty-six different grass species are found in Badlands.

雪儿 · 发表于: 2011-10-4 12:20:13

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Clouds Over Wyoming Prairie

Photograph by John Eastcott and Yva Momatiuk, National Geographic

Thin clouds drift above the gentle contours of the Wyoming prairie lands.

雪儿 · 发表于: 2011-10-4 12:20:30

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Acacia Sunrise

Photograph by Balazs Buzas, My Shot

An acacia tree stands tall as the sun rises over Serengeti National Park in Tanzania. The savannas of the Serengeti stretch over Tanzania and Kenya, and support hundreds of species of plants and animals.

雪儿 · 发表于: 2011-10-4 12:28:20

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Winter Wheat, Colorado

Photograph by Richard Olsenius, National Geographic

Rows of winter wheat wind their way to the Colorado horizon. Because North American grasslands have such fertile soil, most of the natural landscape has been converted to farmland.

雪儿 · 发表于: 2011-10-4 12:28:41

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Prairie Dog, South Dakota

Photograph by Raymond Gehman, National Geographic

A black-tailed prairie dog perks up outside his burrow in South Dakota. These playful rodents live in well-organized underground burrows called towns that can have populations in the thousands.

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[2011年] Photo Gallery: Grasslands, Prairies, and Savannas

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