Semi-arid sentence example

semi-arid
  • In the semi-arid regions of the United States, Argentina and other countries where the average annual rainfall lies between ioa to 20 in., irrigation is necessary to obtain full crops every year.
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  • In the operation of ploughing the furrow slice is separated from the soil below, and although in humid soils this layer may be left to settle by degrees, in semi-arid regions this loosened layer becomes.
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  • The state belongs to the elevated plateau region, with its semi-arid conditions.
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  • the general elevation is low, the surface sandy and covered with cactus and mesquite growth, and hot, semi-arid conditions prevail.
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  • The streams flowing from the central area have cut deep gorges and canons, and among the ridges the granitic rocks have assumed many strange forms. Though rising from a semi-arid plateau, these mountains have sufficient rainfall to support an abundant plant growth, and have derived their name from the fact that their slopes are dark with heavy forests.
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  • The flora of North Dakota is typical of a semi-arid country.
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  • The Bad Lands exhibit a vegetation typical of semi-arid regions.
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  • The drift becomes thinner toward the W., and finally disappears in the semi-arid regions of the Missouri river valley.
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  • San Luis belongs partly to the semi-arid pampa region, and partly to the mountainous region of the eastern Andes and Cordoba whose ranges terminate between the 33rd and 34th parallels.
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  • But the low temperature causes the moisture-laden winds to deposit here greater quantities of rain and snow than in the semi-arid regions below, which not only promote the growth of vegetation, but cause the activity of the springs, geysers and waterfalls.
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  • In 1899 the irrigated area in the arid states and territories was more than, twice as great as in 1889, the acreage being as follows: - Total In addition to the area above given, in 18 99, 2 73, 11 7 acres were under irrigation in the semi-arid region, east of the states above mentioned and including portions of the states of North and South Dakota, Nebraska, Kansas, Texas and Oklahoma.
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  • In no part of the semi-arid region of the country are the irrigation problems so diverse and difficult.
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  • Sheep and cattle are raised extensively on ranches in the semi-arid regions, large herds of cattle are kept on lands too wet for cultivation in the western counties, and stock-raising and dairying have become important factors in the operation of many of the best farms. The acreage of wheat was 810,000 in 1909 and the crop was 16,377,000 bushels.
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  • The hay crop, 865,000 tons in 1909, is made quite largely from wild grasses and grains cut green; on the irrigated lands alfalfa is grown extensively for the cattle and sheep, which are otherwise almost wholly dependent for sustenance upon the bunch grass of the semi-arid plains.
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  • The principal railways are: that of the Oregon Railroad & Navigation Company (controlled by the Union Pacific), which crosses the north-eastern corner of the state and then runs along the bank of the Columbia river to Portland; three lines of the Southern Pacific in the Willamette Valley, the main line connecting Portland with San Francisco; the Astoria & Columbia River, connecting Portland and Astoria; the Coos Bay, Roseburg & Eastern Railroad & Navigation Company (owned by the Southern Pacific), connecting Coos Bay with one of the Southern Pacific lines; and the Corvallis & Eastern (owned by the Southern Pacific), connecting Yaquina Bay with all three lines of the Southern Pacific. Throughout the Cascade Mountain Region and the great semi-arid region east of those mountains, which together embrace more than two-thirds of the state's area, there is not a railway.
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  • Loess, often thin and always containing little humus, also covers large areas on the high, semi-arid plains in the western part of the state.
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  • The system was designed to bring a greatly increased area of arid or semi-arid land under irrigation.
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  • Such rainfall might seem inadequate for an agricultural country: moreover, the eastern half of the state is more favoured than the western, which belongs, indeed, to the semi-arid Great Plains on which the Reclamation Service of the United States Government is active.
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  • In fact the yield of this section relatively to cultivated acreage is normally fully equal to that of the eastern section; a result quite consistent with the scientifically proven fertility of semi-arid lands.
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  • Nebraska wheat, like that of Kansas, combines for milling the splendid qualities of winter wheat with those characteristic of grain grown on the edge of the semi-arid West; flour and grist-mill products were valued at $7,794,130 in 1900 and at $12,190,303 in 1905.
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  • Long, in particular, followed the Platte and South Platte across the state in 1819, and his despairing account of the semi-arid buffalo plains - whence arose the myth of the Great American Desert - finely contrasts with the later history and latter-day optimism of dry-farming and irrigation.
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  • They are drained and in large part enclosed by the North (or Belle Fourche) and South forks of the Cheyenne river (at whose junction a fur-trading post was established about 1830); and are surrounded by semi-arid, alkaline plains lying 3000 to 3500 ft.
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  • In the semi-arid districts on the south slope of the mountains the flora consists chiefly of dry grasses, acacias, yuccas and cactuses.
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  • or more, while other districts are semi-arid or subject to severe droughts.
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  • It is a stony, semi-arid region, thinly wooded, having good grazing campos in its extreme western section.
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  • Its semi-arid character is due to the mountain ranges on its northern frontier, which extract the moisture from the north-east trades and leave the Brazilian plateau behind them with a very limited rainfall, except near the Atlantic coast.
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  • Many districts of the province are arid or semi-arid, and over most of its area there are not more than seven persons per sq.
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