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october 3 - HUMAN GEOGRAPHY Traditional Agriculture...

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10/03/06 HUMAN GEOGRAPHY Traditional Agriculture: agrodiversity in action Intercropping (works two or more crops) Polyvarietal cultivation (planting more than one variety of one crop) Agroforestry (alley cropping) (growing trees with crops) Polyculture (all of this put together) Modern agricultural systems Mixed cropping (intercropping) Crop rotation Monocultures Need much money up front, but because it is technology-intensive instead of labor-intensive, you receive more capital if you have a successful crop. Soil Erosion and conservation Geological (natural) erosion vs. Accelerated erosion Overland flow erosion Water comes down on ground and flows over landscape as a sheet and carries soil/nutrients away Raindrops compact soil, thereby reducing its ability to hold water Wind erosion Wind carries stuff away Streambank erosion Restricted to streams and streambanks Soil conservation techniques The shelter belt program
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october 3 - HUMAN GEOGRAPHY Traditional Agriculture...

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