gully

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Related to gullies: canyon

gully

1, gulley
1. a channel or small valley, esp one cut by heavy rainwater
2. NZ a small bush-clad valley
3. a deep, wide fissure between two buttresses in a mountain face, sometimes containing a stream or scree
4. Cricket
a. a fielding position between the slips and point
b. a fielder in this position
5. either of the two channels at the side of a tenpin bowling lane

gully

2
Scot a large knife, such as a butcher's knife

Gully

 

a deep, steep-sided cut formed by a temporary stream. It forms on elevated plains or on hills that are composed of loose, easily scoured rock and on the sides of ravines and gulches. It may be up to several kilometers long, with a width and depth of dozens of meters. Gullies are most widespread in the European USSR in the forest-steppe and steppe zones (for example, in the Central Russian Upland, Volga Upland, Volyn’ Hills, and Po-dol’e Upland) and in Middle Asia (Fergana). In other countries they are found in the loess areas of China, in a number of regions in the United States, and in tropical countries.

Gullies cause great damage chiefly to agriculture by breaking up and destroying fields. Farming practices that eliminate or reduce surface runoff and promote moisture retention on the fields are effective in preventing gully erosion. They include crop rotation, contour farming, broken ridging, slotting, strip farming, the creation of perennial-grass buffer strips along the contour, the leveling of scours, and the planting of water-absorbing forest belts horizontally along sloping lands.

On land with developing gullies, hydraulic engineering works are built and forest reclamation methods are also used. The hydraulic engineering structures include water-retaining embankments, terraces, drainage ditches, dams, chutes, overfalls, and retaining walls. The forest reclamation methods include the planting of shelterbelts around gullies and ravines, as well as afforestation and regrassing of the sides and floors of gullies. These measures prevent the development of gullies. Gullies are now sometimes flattened and then sown with grass.

REFERENCES

Dokuchaev, V. V. “Ovragi i ikh znachenie.” Soch., vol. 1. Moscow-Leningrad, 1949.
Braude, I. D. Zakreplenie i osvoenie ovragov, balok i krutykh sklonov. Moscow, 1959.
Koz’menko, A. S. Bor’ba s eroziei pochv na sel’skokhoziai-stvennykh ugod’iakh. Moscow, 1963.
Shikula, N. K. Bor’ba s eroziei i zemledelie na sklonakh. Donetsk, 1968.

D. L. ARMAND and N. K. SHIKULA

gully

[′gəl·ē]
(geography)
A narrow ravine.

gulley, gully

In a drainage system, a fitting at the upper end of a drain that receives the discharge from waste pipes or rain water.
References in periodicals archive ?
Currently, 85% of gullies are working but 14% - around 10,000 gullies - are blocked.
To form gullies, he theorizes, the surface of a snow deposit mixes with the dust prevalent in the Martian atmosphere, creating a mixture that readily absorbs sunlight.
19) employed a composite topographic index (CII), he product of upstream contributing area, slope, and planform curvature, as an index of the erosive power of concentrated flow to predict where ephemeral gullies occur in the landscape.
According to their model, the pressure from the liquid eventually becomes so great that it breaks through the dam and gushes onto the surface with enough force and volume to create gullies before freezing and evaporating.
From Tuesday to Wednesday, Phivolcs recorded a total of 298 volcanic earthquakes, four distinct episodes of pyroclastic flow from lava collapse, and 52 rockfall events generated by the collapsing lava front and margins of the advancing lava flows on the Bonga and Miisi gullies.
This formula was obtained from data collected from a large number of debris flow gullies located in the southwest region of China; this reflected the relationship between the percentage of clay particles in the debris flow (< 0.
These gullies are different from (and much larger than) the occasional, seasonal trickles of salt-infused water seen elsewhere on the surface, which create the so-called recurrent slope lineae (S&T: Jan.
In the gullies known as "The Horse" these are best fished on a slightly larger ebb tide and fish well with a very slight swell, creating white water in the surrounding area.
It has cost Telford & Wrekin Council PS500 to make the gullies safe but the council is expect to foot further costs of PS2,100 to permanently replace the missing gully grates and frames.
NASA's Mars Reconnaissance Orbiter (MRO)'s High Resolution Imaging Science Experiment (HiRISE) camera was used to examine gullies at 356 sites on Mars, beginning in 2006.
Gullies are lled up with silt and foliage, and so water cannot run away.
It has prompted a warning of the dangers of using gullies when trying to get off mountains.