windbreak

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windbreak

a physical obstruction to the passage of the wind, usually in the form of a line or copse of tall bushes or low trees or a porous fence. Of very great importance in temperate climates and periods of cold, wet, windy weather. Neonatal lamb mortality, off-shears hypothermia of sheep and hypomagnesemia and lactation tetany are some of the risk diseases in these circumstances.
During sheep weather alerts it may be necessary to improvise shelter. Some methods are: rows of bales of hay, mowing swathes of tall vegetation in a cereal crop or overgrown pasture being kept for hay. The sheep lie down in the alleys and keep out of the wind.
References in periodicals archive ?
The seed oil yield of Uvs shelterbelt cultivar is relatively low than other two sample but total carotenoid content was higher.
Changes in the concentrations of mineral substances in the groundwater passing through a wide old leafy shelterbelt were investigated.
Trial 2--Shelterbelt There was no significant effect on bird weight and feather score of hens whether they were provided with shelterbelts or no shelterbelts in the range in both trials.
Shelterbelts should be moderately dense from ground level to treetops if they are to be effective in filtering the wind and lifting it from the surface.
Takle adds that better understanding of such flows will help evaluate the role shelterbelts can play in the environment.
Most were planted in shelterbelts, although some were planted near buildings and around the lagoon to see how they might affect airflow, odor drift and air filtration.
This involves the planting of a 2,800 mile shelterbelt of trees across the northwest rim of China skirting the Gobi Desert.
Nitrogen-fixing trees--alders, caragana, and buffalo berry for example--can also help keep nitrogen in the soil of garden plots and smaller crop plots if used as a shelterbelt, and if their root systems are allowed to develop under the crop area.
About an hour into our hunt, a lone rooster flushed from a pine shelterbelt in front of Cheryl and she dropped it cleanly.
The Secretary General of the Arab Union for Youths and Environment has announced selection of the shelterbelt in Khartoum State as the best environment project in the year 2016.
A shelterbelt, as an efficiently functioning biogeochemical barrier, decreases the quantity of chemical compounds migrating from cultivated fields in groundwater.
Agroforestry systems are classified as improved fallow in shifting cultivation integrated taungya, shelterbelt and windbreaks, social forestry, silvipastoralism, agrosilvipastoralism, live- fences and silvipasture (Okafor, 1992; Etukudu, 2000).