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Grasslands and prairies.
In: Salem Press Encyclopedia of Science, 2022-05-01, S. 3
Online
Nachschlagewerk
![Verkleinertes Vorschaubild](https://imageserver.ebscohost.com/img/embimages/ers/sp/placard/116293195-116820.jpg?ephost1=dGJyMNHX8kSepq84yOvsOLCmsEyepq5Srqa4SK6WxWXS)
Zugriff:
Originally stretching east from the Rocky Mountains to Indiana and Ohio, and from Alberta, Canada, to Texas, the prairies were the major grassland of North America. The short-grass prairie extended about two hundred miles (three hundred kilometers) east of the mountains, and the long-grass prairie bordered the deciduous forest along the eastern edge, while the mixed-grass prairie was between the two. Going from west to east, the amount of precipitation increases, causing changes in plant populations. The short-grass prairie receives only about 25 centimeters (10 inches) of precipitation each year, mostly as summer rain, and, as its name suggests, has short grass, less than 60 centimeters (2 feet) tall. Today, it is used primarily for grazing because the soil is shallow and unsuited for farming without irrigation. The mixed-grass prairie receives moderate precipitation, ranging from 35 to 60 centimeters (14 to 24 inches) and has medium-height grasses, ranging from 60 to 120 centimeters (2 to 4 feet) tall. Much of it is now used for growing wheat. The tall-grass prairie receives more than 60 centimeters (24 inches) of precipitation, mostly in the summer, and had grasses that grow to over 150 centimeters (5 feet) tall. It has rich soil and has been mostly converted to very productive cropland, primarily for corn and soybeans. The prairies experience very cold winters (down to −45 degrees Celsius, −50 degrees Fahrenheit) and very hot summers (up to 45 degrees Celsius, 110 degrees Fahrenheit). They are often windy and experience severe storms, blizzards in winter, thunderstorms and tornadoes in summer.
Titel: |
Grasslands and prairies.
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Autor/in / Beteiligte Person: | Robinson, James L. |
Zeitschrift: | Salem Press Encyclopedia of Science, 2022-05-01, S. 3 |
Veröffentlichung: | 2022 |
Medientyp: | Nachschlagewerk |
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