Agents of
Change
Agents 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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