ENVIROTHON SOILS STATION INTENT AND PURPOSE (you might want to
sit up close for these) 1
Slide 2
SOIL FORMATION SOIL FORMATION LANDFORM gullies, hills, mtns,
CLIMATE freezing, thawing ORGANICS life cycles PARENT MATERIAL
mineral sources TIME long time, eons, mega yrs. 2
Slide 3
Biologial Diversity is Essential 3
Slide 4
Diversity in different Ecosystems 4
Slide 5
Where are the most fertile soils? National Geographic,
September 2008 5
Slide 6
ARABLE PART of the EARTH 6
Slide 7
7
Slide 8
8
Slide 9
PARTICLE SIZE 9
Slide 10
Soil Color 10
Slide 11
11
Slide 12
12
Slide 13
STRUCTURE 13
Slide 14
Web Soil Survey 14
Slide 15
15
Slide 16
16
Slide 17
17
Slide 18
18
Slide 19
Soil Survey Program Web Soil Survey 19
Slide 20
Soil Survey Program Web Soil Survey Requires only a computer
with (fast) internet connection to use No signups/passwords/email
addresses required Maps made without specialized software,
instantly Robust analysis capabilities without specialized software
20
Slide 21
94% of the country has been mapped 96% of private land has been
mapped Utah has about 3 million acres of private land left to be
surveyed Soil Survey Program Web Soil Survey-Data Availability
21
Slide 22
Soil Survey Program Web Soil Survey Low
Tech.--------------------Most People----------------------High
Tech. 22
Slide 23
Soil Survey Program Web Soil Survey EASY TO USE... just 3
steps: 1) Define 2) View/Explore 3) Check Out
http://websoilsurvey.nrcs.usda.gov/app/ 23
Slide 24
Area of Interest 24
Slide 25
EXAMPLE SOIL MAP 25
Slide 26
Building Materials Map 26
Slide 27
Building Materials Ratings 27
Slide 28
Eight Capability Classes 28
Slide 29
WHY ALL THE FUSS? FUSS? 29
Slide 30
Factors that affect erosion Slope Texture Cover Climate (rain
and runoff) Temperatures Wind Types of Erosion Splash Zone Rill
erosion Gully erosion Wind erosion Sheet erosion Streambank erosion
Sustainable Agriculture and Erosion 30
Slide 31
Erosion Control Contour Planting: plant crops around the curve
of a hill rather than up and down the hill. Terraces: wide ridges
that go around a hill to prevent water from rushing down the hill
too fast. Forest and Grass Areas: keep steep hillsides in trees or
grass rather than clear for cropland. Grassed Waterways: plant
grass and dont plow low areas in a field where water usually runs.
Sustainable Agriculture and Erosion Control 31
Slide 32
Erosion Control Windbreak: rows of trees planted to slow down
the wind and prevent soils from blowing Cover Crop: a crop planted
between harvests reduces soil erosion and replenishes the soil with
nutrients and organic matter Conservation Tillage Crop Rotation:
rotate the type of crop planted so that the nutrients are not
depleted http://www.dubuqueswcd.org/page5.html Sustainable
Agriculture and Erosion Control 32