Sunday, May 3, 2009

HUDSON BAY LOWLANDS



•The marshy plains to the south and west of Hudson Bay form one of the world’s largest wetlands areas. Frozen for most of the year, it thaws and springs to life in summer.
•Today, the Hudson Bay freezes over only in winter. Thousands of years ago, during the Ice Age- a period when earths climate was much colder-both the bay and lowlands were covered by a vast ice sheet that pressed the land down. The ice sheet melted long ago, but the compressed land is rising back up at about 0.4 inches(1 cm) a year. This creates new low-lying land along the coast, forming salt marshes.
•50-75 percent of the Hudson Bay Lowlands is wetlands. The rest is covered in small plants typical of the tundra biome.
•The wetlands include pear bogs, shallow pools, river floodplains, and coastal salt marshes.
•More then 99 percent of the Hudson Bay Lowlands is unspoiled wilderness.
WHAT PERCENT OF THE HUDSON BAY LOWLANDS IS WETLANDS?

1 comment:

  1. 50-75 percent of the judson bay lowlands is wetlands

    -tom period 1

    ReplyDelete