File:Drained vs. Undrained (16903980581).jpg
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Summary
[edit]DescriptionDrained vs. Undrained (16903980581).jpg |
English: This photo highlights a typical portion of the prairie pothole region of {w . There are many temporary, seasonal, and semi-permanent wetlands visible in the photo, however the operator of the field in the center and leading out to the bottom right of the photo practices wetland drainage.
Ditches have been dug to drain water from the wetlands that would be pock-marking this field. For the agricultural producer, some of the intended benefits are: more area to crop (less water-covered), earlier into the field to plant (dries out quicker), and don't have to drive around potholes when running equipment (more economical, saves fuel and overlap). What about the unintended consequences that are (in many times) passed on to neighbors, other parts of the country, or won't take place until the future? Some of these effects are: Loss of nutrient and chemical filtration (these waters flow overland until they end up in a large lake or river), loss of topsoil through soil erosion (this will eventually affect the land, but may not be measurable for many years), loss of wildlife habitat, loss of groundwater recharge for aquifers and those that get their water from wells, if the water drains into a lake it may cause increased flooding of neighbor's lands as the lake takes on the excess water, if the water is running into a river it may have increased soil and nutrient pollution and increased flows during spring flood season or after large rain events, affecting many people downstream. "The traditional way to get rich is to transfer your costs to someone else." --whether to your neighbor, the taxpayer, or the generations that follow your own. -from the article "Plowed Under" prospect.org/article/plowed-under |
Date | |
Source | Drained vs. Undrained |
Author | Photo Credit: Krista Lundgren, US Fish and Wildlife Service. USFWS Mountain-Prairie |
Licensing
[edit]Public domainPublic domainfalsefalse |
This image or recording is the work of a U.S. Fish and Wildlife Service employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain. For more information, see the Fish and Wildlife Service copyright policy.
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This image was originally posted to Flickr by USFWS Mountain Prairie at https://flickr.com/photos/51986662@N05/16903980581. It was reviewed on 2 March 2016 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
2 March 2016
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current | 22:11, 2 March 2016 | 5,184 × 3,456 (6 MB) | Holly Cheng (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 | Canon |
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Camera model | Canon EOS REBEL T3i |
Author | Krista Lundgren |
Exposure time | 1/200 sec (0.005) |
F-number | f/6.3 |
ISO speed rating | 100 |
Date and time of data generation | 10:19, 20 March 2015 |
Lens focal length | 55 mm |
Orientation | Normal |
File change date and time | 10:19, 20 March 2015 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.3 |
Date and time of digitizing | 10:19, 20 March 2015 |
Meaning of each component |
|
APEX shutter speed | 7.625 |
APEX aperture | 5.375 |
APEX exposure bias | 0.66666666666667 |
Metering mode | Spot |
Flash | Flash did not fire, compulsory flash suppression |
DateTime subseconds | 43 |
DateTimeOriginal subseconds | 43 |
DateTimeDigitized subseconds | 43 |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 5,728.1767955801 |
Focal plane Y resolution | 5,808.4033613445 |
Focal plane resolution unit | inches |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Scene capture type | Standard |
Rating (out of 5) | 0 |