File:Residue Cover on the Soil Surface 2 of 3 (7873419588).jpg
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Summary
[edit]DescriptionResidue Cover on the Soil Surface 2 of 3 (7873419588).jpg |
During DakofaFest 2012, the USDA Natural Resources Conservation Service in South Dakota focused on Soil Health at their booth in the USDA tent at DakotaFest. The Soil Expo display run at the NRCS 20120 DakotaFest presentation demonstrated the soil erosion and sedimentation losses from conventionally tilled samples verses No-Till cropland samples. An experiment was performed on two "cut outs" of soil - one from a No-till field and one from a conventional tillage field. "Rain" was put on the samples to see how the soil structure reacted. The No-till field had better infiltration with much less water runoff that was also more clear. The photo shows the conventional tillage field had more runoff that with soil particles in the water. Once the "rain" was over, the two trays were examined. The No-till tray had water infiltration through the bottom. This meant that the water had good infiltration to the soil profile. The bottom of the conventional tillage sample was almost fully dry meaning that the water had runoff and not infiltrated the top few inches of the soil profile. |
Date | |
Source | Residue Cover on the Soil Surface 2 of 3 |
Author | USDA NRCS South Dakota |
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This image was originally posted to Flickr by USDA NRCS South Dakota at https://flickr.com/photos/68847506@N08/7873419588 (archive). It was reviewed on 27 January 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-sa-2.0. |
27 January 2018
Public domainPublic domainfalsefalse |
This image is a work of the Natural Resources Conservation Service, part of the United States Department of Agriculture, taken or made as part of an employee's official duties. As a work of the U.S. federal government, the image is in the public domain in the United States. |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 04:55, 27 January 2018 | 3,264 × 2,448 (3.08 MB) | Artix Kreiger 2 (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | FUJIFILM |
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Camera model | FinePix HS20EXR |
Exposure time | 1/30 sec (0.033333333333333) |
F-number | f/3.2 |
ISO speed rating | 160 |
Date and time of data generation | 11:32, 21 August 2012 |
Lens focal length | 5.4 mm |
Orientation | Normal |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Digital Camera FinePix HS20EXR Ver1.02 |
File change date and time | 11:32, 21 August 2012 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.3 |
Date and time of digitizing | 11:32, 21 August 2012 |
Meaning of each component |
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Image compression mode | 4 |
APEX shutter speed | 5 |
APEX aperture | 3.4 |
APEX brightness | 3.58 |
APEX exposure bias | 0 |
Maximum land aperture | 3 APEX (f/2.83) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 5,077 |
Focal plane Y resolution | 5,077 |
Focal plane resolution unit | 3 |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Scene capture type | Standard |
Sharpness | Normal |
Subject distance range | Unknown |