21 acres mapping group
DESCRIPTION
21 Acres Mapping Group. Satori Johnson, Rainer Oviir , Sam Shupe BES 318 Winter 2010. W. University of Washington Bothell. Objectives:. To measure topsoil depths for plots D, E1, E2, G, H1, and H2. Observe differences in soil texture and color in underlying layers. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: 21 Acres Mapping Group](https://reader036.vdocuments.us/reader036/viewer/2022062301/568162a8550346895dd328c3/html5/thumbnails/1.jpg)
21 ACRES MAPPING
GROUPSatori Johnson, Rainer Oviir, Sam Shupe
BES 318Winter 2010
WUniversity of
Washington Bothell
![Page 2: 21 Acres Mapping Group](https://reader036.vdocuments.us/reader036/viewer/2022062301/568162a8550346895dd328c3/html5/thumbnails/2.jpg)
OBJECTIVES: To measure topsoil depths for plots D,
E1, E2, G, H1, and H2. Observe differences in soil texture and
color in underlying layers.
![Page 3: 21 Acres Mapping Group](https://reader036.vdocuments.us/reader036/viewer/2022062301/568162a8550346895dd328c3/html5/thumbnails/3.jpg)
METHODS & PROCEDURES Nine measurements
collected in each plot.
Depth was measured at change of soil characteristics.
![Page 4: 21 Acres Mapping Group](https://reader036.vdocuments.us/reader036/viewer/2022062301/568162a8550346895dd328c3/html5/thumbnails/4.jpg)
RESULTS:
D E1 E2 G H1 H20
2
4
6
8
10
12
Topsoil Characteristics
VarianceAverage
Plot name
Inch
es o
f to
psoi
l
6 to 8 8.5 to 10.5 11 to 13 13.5+05
1015202530
Topsoil Frequency
Inches of topsoil
Freq
uenc
y
![Page 5: 21 Acres Mapping Group](https://reader036.vdocuments.us/reader036/viewer/2022062301/568162a8550346895dd328c3/html5/thumbnails/5.jpg)
WHAT WE SAW:This photograph was taken from plot D and shows the change in soil composition.
The depth of the topsoil at this site was 15 inches.
The underlying layer was mostly clay with a low percentage of silt and almost no sand.
Click icon to add picture
![Page 6: 21 Acres Mapping Group](https://reader036.vdocuments.us/reader036/viewer/2022062301/568162a8550346895dd328c3/html5/thumbnails/6.jpg)
THE BIG PICTURE: Topsoil depth was greater than
expected Information useful for planning crop
plantings Soil composition in layers below
topsoil were diverse and changed drastically from one site to the next.
![Page 7: 21 Acres Mapping Group](https://reader036.vdocuments.us/reader036/viewer/2022062301/568162a8550346895dd328c3/html5/thumbnails/7.jpg)
LIMITATIONS AND FUTURE RECOMMENDATIONS: Limitations:
Research errors – inaccurate measurements
Measurements were taken one week apart
Future work: Cross-reference
findings with data obtained by infiltration rates group, soil hydraulic properties group, and soil nutrients and organic matter group
Conduct more comprehensive soil profile analysis.
![Page 8: 21 Acres Mapping Group](https://reader036.vdocuments.us/reader036/viewer/2022062301/568162a8550346895dd328c3/html5/thumbnails/8.jpg)
21 ACRES’ EDUCATION DIRECTOR, DAVE MUEHLEISEN
21 ACRES STAFF & VOLUNTEERSDR. ROBERT TURNER
Acknowledgements: