بلندترین نبکا در جهان، گلدان کویر لوت، توضیح ص1 The Thighest 'Nebka' in the world, Shahdad, Kerman, Iran

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Description Nebka

•Vegetation mounds, commonly found on sand plains, are large clumps or clusters of small trees and shrubs such as Acacia (tarfa) and Tamarix (tamarisk) with accumulations of sand at their bases, trapped by the vegetation. In this respect they are similar to very large, solitary coppice dunes, or to parabolic dunes. They differ, however, in size and distribution. Their size range overlaps slightly that of coppice dunes, but they may be as long as 80 m and as high as 20 m at Loot desert in Kerman province, Iran.

Origin

•It is likely that many vegetation mounds are relics of wetter environmental conditions, having started as coppice dunes formed around vegetation aligned along old water channels or around moisture-retaining basins. As the sand accumulated, the plants developed an ever more extended root system to reach water stored at the base of the mound. If the mounds build up beyond the ability of the plants to reach water, the vegetation will die.

Significance

•They are good sources of firewood, but because of the wildlife, particularly insects and snakes, they make poor places to camp. They offer almost the only areas for cover and concealment on sand plains, and they can also serve as observation posts.

•Shallow water can sometimes be found by digging beneath the sand in vegetation mounds, but it is likely to be saline. Also, there is a possibility of obtaining water from the old channels if mobile drilling equipment is available.

•The sand around Tamarix (tamarisk) mounds is frequently covered with fallen thorns, twigs, and branches that can produce annoying small puncture wounds in those sitting or lying on the surface. These thorns will easily puncture the soles of light desert boots with crepe soles, and they can cause leaks in tires.

In Lut desert in **Kerman province there is another type of them that is called Rebdou. These kind mounds, usually no more than about 1 to 5 m high, Another difference between Nebka and Rebdou is their appearance. Stone shape is more complex of wood. 'Rebdou' sometimes shows a few cones that have been together. The highest 'Rebdou' are seen in western Lut that their height sometimes reaches 12 m.

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Comments (637)

franco cellai on May 31, 2011

very beautiful

Zsuzsanna Bánfalvi on May 31, 2011

Beautiful !!!!!!!!!!!

Like + Voted ! Greetings,Natuska

Cato75 on June 1, 2011

Wanna now how the tree managed to get there. Very nice photo. Like and friendly greetings Cato

Long live Panoramio! on June 1, 2011

Life and death so close together!

Regards Frank

lurdesa_ on June 3, 2011

very interesting arbre .WONDERFUL !!

YSL

lurdesa

Alireza.jafar on June 5, 2011

دمت گرم داداش خیلی هنرمندانس like

Esztella on June 5, 2011

I really like the photo. Best regards, Eszter

Like

Timo's2 on June 5, 2011

Wow, liked. Timo

Jalal Karimi on June 7, 2011

عکس بسیار زیبا و شگفت انگیزیهپزیبای طبیعت و قدرت پروردگار در این عکس متجلیه ایول

Bahram Didehjahan on June 10, 2011

با اجازه شما را بیه لیست دوستانم اضافه کردم

لایک

Yosarsif مهدی کلهر on June 11, 2011

ممنون

Estike on June 11, 2011

This photo I like already, but now I take away YS.really amazing! Greet Hajni

AndyUrbina on June 12, 2011

Notable y singular. Excelente registro.Like. Saludos cordiales, Andy

th81 on June 13, 2011

Very nice photo and intersting place!

LIKE!

Best wishes from Germany, th81

Harry Taggart on June 15, 2011

Marvellous Study. Like 357. cheers scally from glasgow.

chrmt on June 15, 2011

1 like

Joan Felip on June 15, 2011

Beautiful photo! Like

Greetings, Joan

佐々木勝夫 on June 16, 2011

Very nice composition

Like

Greetings from Japan,Katsuo

Marilena Borriero on June 16, 2011

Bellissima,complimenti...LIKE Mari

Ahmet poçanoğlu on June 19, 2011

Beautiful landscape Mahdi!LİKE Greetings.

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Photo details

  • Uploaded on April 22, 2011
  • Attribution
    by Mahdi Kalhor
    • Camera: Canon PowerShot A2100 IS
    • Taken on 2011/04/02 03:24:04
    • Exposure: 0.005s (1/200)
    • Focal Length: 6.40mm
    • F/Stop: f/9.000
    • ISO Speed: ISO80
    • Exposure Bias: 0.00 EV
    • No flash

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