Semi-desert - Factbites

Semi-desert - Factbites
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Topic: Semi-desert

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	Gobi Desert - Wikipedia, the free encyclopedia
		It is bounded by the Mongolian-Manchurian grassland to the north, the Yellow River Plain to the southeast, and the Alashan Plateau semi-desert to the southeast and east.
		To the south of the Kuruk-tagh lie the desert of Lop, the desert of Kum-tagh, and the valley of the Bulunzir-gol.
		It consists of the desert basins and low mountains lying between the Gobi Altay range on the north, the Helan Mountains to the southeast, and the Qilian Mountains and northeastern portion of the Tibetan Plateau on the southwest.
	en.wikipedia.org /wiki/Gobi_Desert (3209 words)

	Terrestrial Ecoregions -- Alashan Plateau semi-desert (PA1302)
		It is bounded on the north by the Altai Mountains that separate the desert from grassland and forest ecosystems that are transitional to the Siberian taiga.
		Desert steppe species are found primarily at higher elevations, and saxaul forests occur on mountain slopes.
		In the drier areas of the Gobi Desert in southern Mongolia, several years may pass with no measurable precipitation, or enough rain may fall in one summer to create a green flush of vegetation and fill hundreds of ephemeral ponds with fresh water.
	www.worldwildlife.org /wildworld/profiles/terrestrial/pa/pa1302_full.html (1441 words)

	Sonoran Desert Network - National Park Service
		At a regional scale, the Sonoran Desert serves as a transition between the Sierra Madre and the Rocky Mountains, the Pacific and Gulf coasts, and the coastal lowlands of Baja and the mid-continent.
		As the Sonoran is a hot desert, it should not be surprising that summer air temperatures routinely exceed 40°C, and often reach 48°C. These high near-surface temperatures interact with cool, moist air in the atmosphere to produce the violent thunderstorms of the summer monsoons.
		Bounded on the north by the Mogollon Rim, the Sonoran Desert grades into the Chihuahuan Desert to the east, the Mohave Desert to the west, and the tropical forests and montane forests of central Mexico to the south.
	www1.nature.nps.gov /im/units/sodn/sonorandesert.htm (2225 words)

	Desertification Monitoring: Is the Desert Encroaching?
		The desert boundary, defined as the border between semi-desert bush/shrub and grassland and with a more or less continuous vegetation cover, and areas with no or very scattered vegetation cover were mapped together with a delineation of other strata.
		The 1975 desert boundary was mapped by Lamprey (Ref. 6) and compared with the one presented on a vegetation map of the Sudan by Ref. 23 in 1958.
		It seems, however, that the desert boundary described in the vegetation map of Ref. 23 from 1958 was defined to follow the 75 mm isohyet, located 90-100 km north of the 100 mm isohyet, rather than actually mapped (Ref. 12).
	www.ciesin.org /docs/002-178/002-178.html (3090 words)

	Chapter 47-Ecological Subregions of the United States
		The dominant desert shrub habitat is used by burrowing owls, short-eared owls, ferruginous hawks, sage sparrows, lark sparrows, western meadowlarks, loggerhead shrikes, horned larks, and occasional irruptions of lark buntings.
		Desert shrub communities are characterized by prairie dogs (white-tailed and Gunnison), badger, kit fox, ferruginous hawk, turkey vulture, and burrowing owl.
		It occurs primarily in the spring in the north and primarily in the winter in the south.
	www.fs.fed.us /land/pubs/ecoregions/ch47.html (3497 words)

	habplants
		Chihuahuan desert scrub is characterized by the presence of small shrubs and having "indicator plants" such as tarbush, creosotebush, Chihuahuan whitethorn acacia and sandpaperbush.
		This habitat is found in isolated areas on the lower slopes and desert valleys between 3500 and 4000 feet in elevation.
		As the name implies these areas are partially desert, but usually recieve 12 or more inches of annual rainfall.
	www.angelfire.com /az/chiricahua/habplants.html (617 words)

	Zinke.html
		Desert soil inorganic carbon storage (in calcrete) has also been discussed as a factor tending to 'damp down' the change between glacial and interglacial carbon storage, because semi-arid soils are relatively rich in carbonates (Schlesinger 1992).
		The paradoxically high soil carbon storage found for temperate desert soils has major implications for calculating carbon storage on the broader Quaternary time scale, because under the cooler and drier conditions of the last Glacial, cool deserts and semi-deserts were one of the world's most widespread ecosystems.
		In addition, inorganic carbon in desert soils should not be seen as an analogue of organic carbon in terms of its effects on atmospheric CO2 levels.
	www.esd.ornl.gov /projects/qen/Zinke.html (1368 words)

	Sudan desert sheep: Their origin, ecology and production potential
		Sudan Desert sheep are reared strictly within the semi-desert belt of the Sudan, in association with camels.
		In the main desert sheep land, the rainfall varies from 75 mm in the far north to 400 mm in the south.
		Desert sheep comprise about 60 percent of the slaughter sheep in the northern regions and about 50 percent for the whole of the Sudan.
	www.fao.org /ag/AGa/AGAP/FRG/FEEDback/War/t8600b/t8600b0d.htm (5469 words)

	World Biomes - Desert
		Most of the flora in the coastal desert features thick foliage, with good water retention, and their roots are close to the surface of the ground in order to get enough water before it drains into the soil.
		Most of the animals in the cold desert are burrowers, even the carnivores and reptiles which even though cold-blooded, have made their homes in the cold desert.
		Animals of the coastal desert include rough skinned amphibians, birds of prey, scavenger mammals reptiles and insects; most have adapted quite well to the climate, and again, they are largely nocturnal during the warmer months.
	www.worldbiomes.com /biomes_desert.htm (524 words)

	Egypt: Travel Tips - Travel and Survival in the Desert
		Aridity of the desert is thus very variable, ranging from the Mediterranean sub-tropical fringe to a semi-arid belt to the S and a fully arid desert interior.
		Desert and semi-desert is the largest single surface area and so has an importance for travelers rarely met with elsewhere.
		Trips into the desert even by the most careful of tour operators carry some of the hazards and a knowledge of good practice might be as helpful on the beach or tourist bus as for the full-blooded desert voyager.
	www.touregypt.net /Desert.htm (2504 words)

	Subtropical Deserts
		Adjacent to these deserts are semi-desert savannahs, with carpets of grass and stands of mesquite and other woody plants.
		The final great desert region of the eastern hemisphere is in Australia, where saltbush, a species of acacia called mulga, spinifex grass, and other drought-adapted plants cover much of the landscape in the centre and west.
		The Atacama and Sechura deserts along the Pacific coast of Chile and Peru are a response to the offshore Humboldt Current, whose cold waters do not readily evaporate, thus depriving the subtropical coast almost completely of rain.
	www.pacificislandtravel.com /nature_gallery/eco_subtropdeserts.html (581 words)

	Desert
		Deserts by bodies of water are usually caused by winds.
		If you are ever stuck in the desert without water, some cactuses, like the barrel or compass (a cactus that always leans to the south west) have water inside of them.
		The Desert plants are of great importance to the animals of the desert.
	ths.sps.lane.edu /biomes/desert4/desert4.html (911 words)

	Learning to Learn: Geography Text [English Online]
		Desert areas may also be described as arid and the areas around them as semi-arid.
		Desert landscapes have a number of features in common no matter where they are found throughout the world.
		The winds that blow in desert regions contribute to the formation of the deserts.
	english.unitecnology.ac.nz /resources/resources/learntolearn/geo.html (1803 words)

	The Numec of Hepekeria
		It is mostly desert and semi-desert, but there are grasslands and evergreen hardwood forests along the coasts.
		The Hepekerian desert is the source of numerous tales of fanciful beasts and hidden riches beneath the sands.
		These desert nomads, a hard and sometimes cruel people, dwell in one of Lythia's harshest regions, and consider themselves to be the "nobility" of Hepekeria.
	www.columbiagames.com /HarnPage/harnmaster/character/numec.html (1590 words)

	Desert Geologic Features - DesertUSA
		Deserts are usually created because they are located in a Rain Shadow -- a dry region downwind of mountain ranges caused by air losing its moisture as it passes over mountains.
		Because of the factors above, deserts often have less vegetation to prevent erosion, which in turn leads to further barrenness through Deflation -- the removal of silt and sand particles from the land surface by wind.
		Desert areas usually have Internal Drainage -- when streams drain toward landlocked basins rather than flowing eventually to the sea.
	www.desertusa.com /mag99/sep/papr/desfeatures.html (403 words)

	Zoogeography of Mongolia
		The desert fauna of the Gobi is biologically diverse.
		The northernmost desert zones in the world are found within Mongolia, and so are the southernmost taiga forests of Siberia.
		The Gobi has come to be translated as the Gobi desert by Westerners but in the Mongolian language it is a description of the entire south.
	www.nomadicjourneys.com /mongolia/zoogeo.asp (1167 words)

	Nigeria
		Beyond these plateaus is a region of savanna, which stretches to a semi desert zone in the extreme north.
		Beyond the coast is a broad, hilly, forested belt, which gradually rises to the rocky terrain of the Jos and Bauchi plateaus.
	www.afroyonda.info /country/ng.html (498 words)

	jordan
		The desert rangelands, in the east and north, occupy 75% of the total area, with less than 100 mm of annual rainfall, while the steppe rangelands lie mainly east of the desert road, with annual rainfall between 100 and 200 mm.
		The rest of the rangeland in the desert, with rainfall of 80 mm, although claimed by the tribes, is open to all Jordanian and non-Jordanian flocks (FAO 1991; Juneidi and Abu-Zanat 1993; Khalidi 1993).
		Forage from desert rangelands is available between mid-January and early April, and from the steppe between January and mid-April and again between mid-September and mid-November, when it is mostly browse from shrubs.
	www.ilri.cgiar.org /InfoServ/Webpub/Fulldocs/Wana/jordan.htm (2751 words)

	DHP
		He discovered that the desert boundary which was established by Harrison (1958) had shifted down 100 km into the semi-desert ecological zone.
		This definition applies to all marginal drylands that extend across the Desert, the semi-desert and the low rainfall savannah ecological zones.
		Desertified areas within the Savannah are only 32.71 million fed. (50% of Semi-desert and low rainfall savannah on sands).
	www.ossrea.net /dhp/dhp01-02.htm (3078 words)

	Soil Water Relations
		The characteristic soils in desert and semi-desert environments are known as 'aridisols'.
		In addition to occuring in deserts, CAM is often found in plants growing salt marshes and on seashores, and this shows how significant drought is for these seaside plants; due to salt in the soil witholding water from being taken up by their roots.
		Oases occur in many deserts where ancient groundwater happens to spring to the surface; often supporting a local community of moisture-requiring plants.
	www.providence.edu /bio/faculty/adams/LECTUREProvCollegeXerophytes.html (2782 words)

	Desert Animal Printouts - EnchantedLearning.com
		To avoid daytime heat, many desert animals are nocturnal; they burrow beneath the surface or hide in the shade during the day, emerging at night to eat.
		Animals that live in the desert have adaptations to cope with the lack of water, the extreme temperatures, and the shortage of food.
		Bactrian Camels are two-humped camels from deserts and steppes of Asia.
	www.enchantedlearning.com /biomes/desert/desert.shtml (1261 words)

	Desert Ecology Chapter 1
		The Sonoran Desert of Baja California, the Atacoma Desert of South America, and the Namib Desert of Africa all reach to the sea yet they are some of the most arid regions on Earth.
		Overview of the Desert Defines and describes the causes of the deserts.
		North American Deserts Another summary of the North American Deserts with links to more details about the individual deserts and the common plants and animals.
	www.western.edu /faculty/jsowell/desertecology/ch1.html (385 words)

	ARMENIAN HIGHLAND
		Arid, shrub and grass steppes are the lowest zone in the north-east, while a semi-desert zone with desert areas is typical of the south.
		The vegetation of the deserts is extremely xerophilous, with a predomination of species developing in saline soils (Russian thistle, glasswort, sarsazan, etc.).
		New sections of desert soils are increasingly being reclaimed for agriculture.
	www.armenianhighland.com /features/chronicle051.html (2646 words)

	Birding hotspots of Israel, the Negev Desert
		The north-western Negev is a vast expanse of natural steppe and semi- desert with transitional vast mixed cultivated areas, which supports a wealth of birds.
		Delineated as being south of Be'er Sheva and Dimona, it is mainly a stone and sand desert with sparse vegetation.
		Desert Wheatear, Finsch' s Wheatear (winter only) and Spectacled Warbler are not difficult to see, and the latter breeds in shallow, bushy wadis.
	www.birdingisrael.com /birdsOfIsrael/israel/birdingHotspots_4.htm (676 words)

	Terrestrial Ecoregions -- Alashan Plateau semi-desert (PA1302)
		You'll find fascinating arid communities in this ecoregion: shifting sand dunes where no vegetation can grow, shrub-dotted desert where the sands are more stable, and shrubby semi-desert that develops after other plants have stabilized the sand and soil has developed.
		Increased rainfall in the mountains can turn the desert green for short periods of time, and mountain snowmelt does feed a number of wet oases, especially in the south.
		If you were to walk from the Tibetan Plateau northward toward Mongolia's Gobi Desert, you'd cross a broad stretch of dry land surrounded by mountains known as the Alashan Plateau.
	www.nationalgeographic.com /wildworld/profiles/terrestrial/pa/pa1302.html (388 words)

	Areas -- Arid Lands and Other Biologically Non-Productive Lands
		In the tropics, deserts occupy 16% of the land ((se75S1), Ref. 16) (la).
		China's deserts are widely distributed throughout the northern districts.
		Deserts (under 10" of precipitation/ year) cover 25% of 11 western US states (p.
	home.alltel.net /bsundquist1/la6.html (1116 words)

	Carry out a suitable experiment to test the hypothesis that a leaf from a desert or semi-desert plant (Xerophyte) (for example , Sedum) loses less water than a temperate climate plant (Mesophyte) (For example, Oak or Geranium).
		Carry out a suitable experiment to test the hypothesis that a leaf from a desert or semi-desert plant (Xerophyte) (for example, Sedum) loses less water than a temperate climate plant (Mesophyte) (For example, Oak or Geranium).
		Below is a short sample of the essay "Carry out a suitable experiment to test the hypothesis that a leaf from a desert or semi-desert plant (Xerophyte) (for example, Sedum) loses less water than a temperate climate plant (Mesophyte) (For example, Oak or Geranium).".
		Coursework and Essays: By Subject: Biology: Carry out a suitable experiment to test the hypothesis that a leaf from a desert or semi-desert plant (Xerophyte) (for example, Sedum) loses less water than a temperate climate plant (Mesophyte) (For example, Oak or Geranium)
	www.coursework.info /i/36793.html (429 words)

	Namibia Tourism Board - The Country - Namibia's Flora & Fauna
		The country is divided into 14 vegetation zones, ranging from variations of desert to semi-desert, shrub and forest savannahs, and woodlands of the Northeast.
		A world-wide botanist interest is the living fossil, Welwitschia Mirabilis, which is endemic to the Namib Desert and one of the oldest plants known to man.
		Over 120 species of trees grow in Namibia ranging from the umbrella-shaped camel thorn, Acacia eroloba, to the valuable ana tree, Faidherbia albida, with its white flowers and nutritious pods, which is an important source of food for the animals of the desert.
	www.namibiatourism.com.na /f_flora.htm (409 words)

	Deserts in Mali
		The land in Mali is sixty-five percent desert or semi-desert.
		Most of the desert is rocky with thorny shrubs all around it.
		The camel is an animal that can be seen in the desert.
	www.uen.org /utahlink/activities/view_activity.cgi?activity_id=6915 (201 words)

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