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Agents of Change

Farms near VermillionAgents of change on agricultural lands are from both natural and human sources. The natural sources are soil and climate (for example, erosion, moisture availability, soil fertility). Human-caused pressures on agricultural lands and surrounding environments typically stem from farm management practices related to crop and grazing land use. Natural agents of change and farm management practices are interconnected, and sometimes difficult to distinguish. This section describes some of the natural factors and the human-caused pressures on agricultural lands in Alberta.

Department of the Environment. State of the Environment Report, Terrestrial Ecosystems. Edmonton: n.p., 2001. With permission from Alberta Environment.


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