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Soil Erosion
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| Photo Information |
Copyright: Janice Dunn (Janice)
![Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 3315 W: 148 N: 6113]](http://i1.treknature.com/misc/g-g-g.gif) (18648) |
| Genre: Landscapes |
| Medium: Color |
| Date Taken: 2007-04-01 |
| Categories: Mountain |
| Camera: Canon EOS 30d, Tamron 28-300 XR |
| Exposure: f/5.6, 1/80 seconds |
| More Photo Info: [view] |
| Photo Version: Original Version |
| Date Submitted: 2007-04-19 4:28 |
| Viewed: 1923 |
| Points: 10 |
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| [Note Guidelines] Photographer's Note |
Soil Erosion
This photo was taken from a moving bus, on our trip around the East Cape of the North Island of New Zealand. The dry hills did look this brown, as there has been a shortage of rain in the area all over summer.
These hills were once covered in trees - no more now.
In pastoral farming use. erosion is a very significant problem. Erosion causes problems for agricultural production (both on-site and downstream), terrestrial and aquatic biodiversity and damage to infrastructure and housing.
The inland hill country poses some of the most difficult problems of soil erosion. The ‘cover’ rocks are weak and slip easily on the steep slopes, generally during heavy rain. Waste from the hillsides slips into the streams and causes them to fill them to fill their valleys with shingle.
It takes between 100 and 400 years for nature to create a single centimetre of topsoil, and between 3000 and 12,000 years to develop enough soil to form productive land over the hard rock that underlies most soils.
But in a Hawkes Bay catchment just south of Gisborne, estimate that about a quarter of the soil that was present when Europeans started farming the land in the 1870s has now been washed into the rivers.
It is said that 210 million tonnes of soil pouring into New Zealand's lakes and oceans each year represent 1.5 per cent of the world's total erosion from just 0.18 per cent of its land area - giving this country an erosion rate almost 10 times the world average.
Quite scary really!! |
cicindela, SunToucher, jeanpaul, Argus has marked this note useful
Only registered TrekNature members may rate photo notes. |
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Hello Janice!
This time I will start from the note which is as always very interesting and informative.
The picture is also nice for me, I can clearly see the effect of erosion :) Moreover nice warm colours, good POV and DOF make this photo really interesting. Maybe only white clouds are "too white" but on the other hand I know that it is really difficult to take a good shot of so many elements :)
Best greetings from Lodz,
Radomir
Hi Janice,
I am always impressed to see a good photo when taken out of a moving object. Besides from the little edge at the bottom it is impossible to see that you were speeding along this view. The entire photo does look a little bright, but that is probably also caused by you sitting in a bus. The nature fact to this photo combined with the excellent note makes it a educational valued photo and shows what humans are doing with the beauty of nature.
TFS,
Niek
Salut Janice
C'est une très bonne prise de vue de cet endroit. Les rochers multicolores de cette belle montagne sont jolis.
Félicitations et merci pour l'envoie...JP
bonsoir janice
félicitations pour cette photo de belle qualité, les couleurs sont parfaitement nettes
bravo, merci
edith
- Argus
(35111)
- [2007-04-21 7:06]
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Hello Janice,
At times we need to be reminded that we have been misnamed as a species by Linnaeus. We should have been called Homo destructor, or something like it.
Your shot of soil erosion in action is sharp and graphic, especially as it is taken from a moving bus. This is an excellent contribution to TN, though a rather sad one!
TFS and best wishes, Ivan
![Gold Star Critiquer/Gold Note Writer [C: 1307 W: 0 N: 2925]](http://i1.treknature.com/misc/g-n-g.gif)
(8635)