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2002 Draft Natural Resources Management
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2002 Draft Natural Resources Management
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5/9/2014 12:44:46 PM
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10/5/2012 3:03:36 PM
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�NFLUENCE OF LANDFORM AND CLIMATE ON VEGETATION TYYES <br />Plant comrnunities that cxist in any given area are the result of numerous biologic and non- <br />biolojic factars. These work in concert to influence plant comrtaunities in often subtle ways, but <br />some of the influences can have rather dramatic and imm�diate effects such as drought, or a <br />tornado. Biotic factors can inclucie such varied things as the presence or ahsence of pollinators, <br />burrowing activities, herbivory, or over utilization of an area by a single species or nt�mber of <br />species. Of the abiatic factors, two have a consistently strong influence in the shaping of plant <br />communities. These are climate and landform. <br />The climate of Ramsey County is considered to be continental and subhumid, with long, cold <br />winters and relatively brief, warm summers. Wide fluctuations in temperature and precipitation <br />also characterize this climate. These fluctuations in temperature and �noisture strongly int7uence <br />the plant communities present in the region and cause plants to be adapted to extremes, rather <br />ihan averages. <br />Landforms also have a profound ir�pact on the type of piant corr�munities found in any area. The <br />landfarms of the Roseville area are primarily associated with activities that took place on the <br />edge of glacial ice sheets (periglacial processes). <br />These weil-drained characteristics of the soil tend to exaggerate drought events, thus favoring <br />more drought tolerant communities in upland areas. <br />City of Rosevidle 10 <br />Parks Nattirr�l Resource Mariagemerzt <br />
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