Unformatted text preview: Temperate grasslands are the typical vegetation of the interior of continents where they cover thousands of acres. Although grasses are the dominant life form, trees occur along streams in riparian woodlands. Most of the highly fertile grasslands have been plowed and cropped and a majority of the remaining grasslands are managed as rangeland. Warm deserts have hot summer temperatures with great diurnal temperature variations. Precipitation is slight and irregular. Shrubs, succulents, and annuals are common life forms in deserts worldwide. Productivity is low and limited by lack of moisture. Some deserts may have no rainfall for 10 to 15 years and plants survive on dew. Cold deserts (and polar deserts ) are dominated by shrubs. The growing season is condensed between cold winters and dry summers. In contrast to the grasslands, most of the photosynthate between cold winters and dry summers....
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This note was uploaded on 11/14/2011 for the course BIO 1421 taught by Professor Farr during the Fall '08 term at Texas State.
- Fall '08