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Topic: Loess Plateau

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	Loess Plateau - Wikipedia, the free encyclopedia
		The Loess Plateau is a plateau that covers an area of some 640,000 km² in the upper and middle parts of China's Yellow River.
		Loess is the name for the silty soil that has been deposited by wind storms on the plateau over the ages.
		Loess is a highly erosion-prone soil that is susceptible to the forces of wind and water.
	en.wikipedia.org /wiki/Loess_Plateau (290 words)

	THE LOESS PLATEAU: (Site not responding. Last check: 2007-09-11)
		In addition, revitalization of the Loess Plateau region cannot be explored as an option until issues such as chronic poverty and outward urban migration of the population are addressed.
		Loess is also extremely sensitive to the forces of wind and water, bearing the dubious honor of being blown or washed away quicker than any other soil type (Pye 125).
		Xi’an, located in the southern part of the Loess Plateau, is the ancient capital of Imperial China and is acknowledged as the source or cradle of the Chinese nation (Qinye, Liu, and Li 36).
	www.mindground.net /loess.html (3628 words)

	Loess Plateau -- Encyclopædia Britannica
		Loess is a sedimentary deposit composed largely of silt-size grains that are loosely cemented by calcium carbonate.
		The loess accumulated primarily during times that were colder and drier than present, and most of it was derived from desert areas to the west.
		Loess is distributed throughout many areas of northern China, but the greatest concentrations of loess are found in central China north of the Ch'in Ling Shan mountain range along the...
	www.britannica.com /eb/article-9048735 (909 words)

	Loess is more
		Loess, pronounced "loose," is a gritty, porous, and finely-ground rock that's blown by the wind.
		The new study of the Loess Plateau, published yesterday by Guo and colleagues in Nature, shows that the deposits are far older than previously thought, indicating that the geological and climatic conditions that produced the loess deposits existed as long as 22 million years ago.
		The Loess Plateau, he says, "is famous for its alternating layers of soil and loess, which have been shown to reflect alternating periods of strengthened summer monsoons (more rain and more soil development) and weaker summer monsoons (less rain, and general increase of aridity during glacial times -- causing loess accumulation).
	whyfiles.org /shorties/100dust_china (900 words)

	Childhood On Loess Plateau, By Xu Yong, in China Postcards (Site not responding. Last check: 2007-09-11)
		The living conditions in the loess plateau are hard to endure, and the childhood of the Chinese children is totally different from that of those living in the coastal region of China.
		The grandest sacrificial ritual in the plateau is the rain-praying ceremony.
		Geographically, the loess plateau is situated in the central part of North China with an area of thousands of square kilometres and its altitude averaging between 800 and 1,100 metres above sea level.
	beifan.com /044postcards/page04.html (863 words)

	ipedia.com: Plateau Article (Site not responding. Last check: 2007-09-11)
		In geology and earth science, a plateau is an area of highland, usually consisting of relatively flat open country if the uplift was recent in Geologic his...
		Plateaus are formed when land has been uplifted by tectonic activity and then exposed to wind or water erosion.
		Many areas of the Allegheny Plateau and the Cumberland Plateau, which are at the western edge of the Appalachian Mountains of eastern North America, are called "mountains" but are actually a dissected plateau.
	www.ipedia.com /plateau.html (261 words)

	Terrestrial Ecoregions -- Central China loess plateau mixed forests (PA0411)
		This plateau was created two million years ago by the deposition of wind-blown dust and by glacial till, called loess, which was left behind by retreating glaciers.
		Vegetation in the northern loess plateau consists of broadleaved trees and is dominated by oak.
		Because the loess plateau is well suited to agriculture, natural forests were replaced centuries ago.
	nationalgeographic.com /wildworld/profiles/terrestrial/pa/pa0411.html (414 words)

	Remote Sensing Analysis of Soil Erosion in Loess Plateau of North Shaanxi Province
		The loess plateau of north Shaanxi Province is famous for its special loess landform and its serious soil erosion, with countless valleysand gullies on it due to high dissected density and severe erosion.
		of all the gullies, which dissected the land surface in the loess plateau, stream, dry gullies and gullies have their definite shape and position, while the small gullies and other tiny gullies do not have definite shape and position, they will mostly disappear with the later erosion, few of them will become new gullies.
		The loess plateau of north Shaanxi Province is located in the south-eastern part of Erduos Plateau and maowusu desert, and is influenced by arid airflows from Mongolia plateau all the year round.
	www.gisdevelopment.net /aars/acrs/1990/Q/ps2004pf.htm (1694 words)

	Soil Conservation and Sustainable Agriculture on the Loess Plateau: Challenges and Prospects (Site not responding. Last check: 2007-09-11)
		The Loess Plateau with its deep loess and severe soil erosion constitutes a special region of the world.
		This paper discusses soil conservation, sustainable agriculture, and the prospectives for the Loess Plateau in relation to the Chinese economic development that is expected in the next century.
		Research on water erosion, and on soil and water conservation have led to the development of agricultural systems that are sustainable, Watershed-scale comprehensive management schemes, and reforestation have led to the conservation of water and to improved pro-ductivity and an increase in farmers’ incomes.
	www.ambio.kva.se /1999/Nr8_99/Dec99_5.html (287 words)

	Nafusah Plateau -- Encyclopædia Britannica
		The major physical features are the Nafusah Plateau and the Al-Jifarah (Gefara) Plain in the northwest, the Akhdar Mountains in the northeast, and the Saharan plateau, occupying much of the rest of the country.
		The Columbia Plateau of the Pacific Northwest, the Deccan “Traps” of India, and the Ethiopian Plateau of Africa are examples.
		Plateau mountains occur in series when the folds of a mountain chain pass abruptly into the horizontal strata of a basalt plateau that is largely denuded of trees and eroded.
	www.britannica.com /eb/article-9054632 (912 words)

	IAG 2000 Thematic Conference Abstract (Site not responding. Last check: 2007-09-11)
		According to the loess record, same as the Loess Plateau, the climate of Yili area during the last glaciation was of instability.
		Compared the loess record from Yili area with those from the north and west of the Loess Plateau (the Yuanbao section and Lijiayuan section), it can be found that the trend of climatic change was uniform at the three different areas.
		Third, the maximum of last glacial occurred at 18 ka BP in the Loess Plateau and it usually responds to the global cooling when the temperature was low and the wind was strong.
	www.geomorph.org /sp/arch/cn00/46.html (933 words)

	10/25/01 -- CHINA: Ecological Shelter Built for Arid Loess Plateau
		There are scores of counties like Wuqi scattered across the Loess Plateau, an area in the northwest 640,000 square kilometers in size, of which 70 percent has been hit by the world's most serious soil erosion.
		Geographical statistics show that the plateau is also rich in mineral mines and energy resources, an important source of strategic supplies for the future.
		Miao Guangzhong, senior engineer of soil conservation, said that according to archaeological research the plateau was covered with flourishing forest thousands of years ago, and it was human deforestation and geologic changes that resulted in environmental deterioration.
	forests.org /archive/asia/ecshbuil.htm (647 words)

	EAES Home Page
		Estimation of land surface evapotranspiration in the western Chinese Loess Plateau using remote sensing.
		Loess Particle size data indicative of stable winter monsoon during the last interglacial in the western part of Chinese Loess Plateau.
		Climatic implication of magnetic susceptibility and Be-10 in Chinese loess.
	www.csam.montclair.edu /earth/eesweb/feng/publications.htm (1696 words)

	The Loess Plateau (Site not responding. Last check: 2007-09-11)
		200 m thick loess is generally called the Loess Plateau, which is the origin of Chinese civilization and the cradleland of Chinese agriculture.
		The Loess Plateau is located in the middle reaches of the Yellow River (the Huanghe River) between Longyang Gorge in the west and Taohuayu in the east.
		The loess has been geologically transported from the northwestern Gobi desert by winds and has accumulated on the Loess Plateau since the beginning of the Quaternary (about 2.5 million years before).(1) The alternations of loess and palaeosols, in conjunction with their enclosed faunas and distinctive mineralogies, have been widely interpreted as reflecting Quaternary glacial/interglacial episodes.(2)
	dekker.com /sdek/71068315-20810899/abstract~content=a713572043~db=enc (363 words)

	Readings (Site not responding. Last check: 2007-09-11)
		The magnetic susceptibility for loess shows higher values and greater amplitude in the east then sites farther in the west.
		This is inferred to reflect the moist summer monsoon climate which does not penetrate all the way to the west.
		Porter reported a signal in the loess grain size that corresponds to the timing of the first six Heinrich events.
	students.washington.edu /sbr3/StevePorteri.html (476 words)

	STRATIGRAPHIC EVIDENCE OF EPISODIC GULLYING ON THE CHINESE LOESS PLATEAU (Site not responding. Last check: 2007-09-11)
		Buried gullies are exposed along the margin of a loess tableland in road excavations near Tongchuan on the Loess Plateau of central China.
		Constraining ages for gully cutting and filling are provided by the ages of loess and soil units cut by and capping the paleogullies.
		Gully cutting is initiated during the onset of interglacial conditions and ceases as the gullies begin to fill with colluvium and airborne dust during the transition from interglacial to glacial conditions.
	gsa.confex.com /gsa/inqu/finalprogram/abstract_52835.htm (295 words)

	history\cradleen.html
		The loess plateau in the Yellow River basin extends for an area of 43,000 sq km (about 2/3 the size of Texas) lying mainly in Shanxi, Shaanxi, Inner Mongolia, and Gansu.
		For the most part, the loess plateau is badly dissected by gullies due to erosion, and its features are generally referred to as qian shan wan he (thousands of hills and ten folds more gullies).
		We now attribute Huang Di's grave to be somewhere in the loess plateau at a site not far from Xi'an, over a thousand kilometers from all of his victorious battles.
	www.cis.umassd.edu /~gleung/history/cradleen.html (1465 words)

	U.S. Senator Chuck Grassley - Capitol Gains and Losses - Western Iowa Wonder (Site not responding. Last check: 2007-09-11)
		The Yellow River basin in northern China is home to the Loess Plateau and encompasses an area the size of Texas.
		Tremendously affected by water erosion, the Loess Plateau near Shaanxi, China is much older and thicker than Iowa's, dating back 2.5 million years.
		The Shaanxi Loess Plateau has weathered immense natural erosion and alteration by industrial development and farming.
	www.senate.gov /~grassley/cgl/1999/cg907-26.htm (497 words)

	United Nations Division for Sustainable Development - Success Stories-2000 (Site not responding. Last check: 2007-09-11)
		The project area covers 15,600 square km of land in nine tributary watersheds of the Yellow River on the Loess Plateau in Shanxi, Shaanxi, and Gansu Provinces, and the Autonomous Region of Inner Mongolia, China.
		The loess soil has good agricultural properties, but drought is a major constraint in crop production.
		Slope lands in the Loess Plateau produce extremely high levels of sediment runoff per unit area.
	www.un.org /esa/sustdev/mgroups/success/SARD-16.htm (630 words)

	Pictures Of Loess Plateau Children From Albums By Xu Yong.
		Chinese boy in picture of loess plateau, tends sheep in China.
		Pictures of loess plateau children of the Yellow Earth.
		Most children in the loess plateau have to walk a long way to go to school.
	beifan.com /044postcards/page05.html (1004 words)

	Views From Flight To Beijing 1 (Site not responding. Last check: 2007-09-11)
		That would put the first part of these pictures over the Loess Plateau, which is exactly what they looked like.
		I could see that she was from a well-to-do family, and was probably attending one of the best schools in Beijing.
		Now the plateau part is nearly gone from the mountains.
	karws.gso.uri.edu /Photo_shows/Guiyang_Jan04/Flight1.html (278 words)

	Remagnetization of Quaternary eolian deposits: A case study from SE Chinese Loess Plateau
		The loess-paleosol succession in the southeastern margin of the Chinese Loess Plateau retains high-resolution archives of sedimentary and environmental change.
		Loess L9, also referred to as “the upper sand layer,” is the coarsest loess unit over the last 1.1 Myr and carries an “imperfect” normal polarity magnetization.
		Our magnetostratigraphic results strongly imply that we need to reconsider the remanence-recording fidelity of coarse loess (L9, and probably L15) and care should be taken to interpret excursions in future paleomagnetic investigations of the Chinese loess.
	www.agu.org /pubs/crossref/2005/2004GC000901.shtml (482 words)

	GEO_PLATE_F-2.HTML (Site not responding. Last check: 2007-09-11)
		Indeed, the Loess Plateau of central China is probably the greatest single pile of terrestrial eolian silts.
		The far western (left) end of the image shows areas of flat undissected plateau, which are called "yuan." The highly dissected loess at the center of the image consists of elongate ridges between gullies.
		During storms, the loess will flow in slurries that are 50 to 60 percent sediment by weight.
	daac.gsfc.nasa.gov /geomorphology/GEO_4/GEO_PLATE_F-2.HTML (487 words)

	SEDIMENTARY RECORD OF PREHISTORIC AND HISTORIC HUMAN IMPACT, SUB-SUDETIC LOESS PLATEAU, POLAND (Site not responding. Last check: 2007-09-11)
		Located within the temperate climatic zone of Central Europe, the northern foreland of the Sudetes is covered by Quaternary deposits related to the Scandinavian glaciations which are in turn covered by loess several meters thick deposited during the last (Wurm/Vistulian) Pleistocene cool period.
		Rivers flowing northward from the Sudetes often cause large floods, the loess plateau receive up to 700 mm annual precipitation, and the local stream pattern is dense.
		Analysis of heavy metal concentration indicates that these alluvia derived by transfer of sediments from the deforested loess Plateau.
	gsa.confex.com /gsa/inqu/finalprogram/abstract_54336.htm (383 words)

	trip97
		The plan is to couple sediment reduction with reclamation by retaining the sediment at its source, to form arable land for the local farmers.
		The opportunity for agricultural development in the loess plateau across the northern Shaanxi and Inner Mongolia is enormous, because the government is now exploiting its energy resources, such as its natural gas and coal, and is investing heavily there.
		After completing my tour to the loess plateau in early July, I remained in Beijing to attend a conference in late July on "technical exchanges across the straits," bringing together experts from China, Taiwan, and the United States on topics of water resources.
	www.cis.umassd.edu /~gleung/sumfo/trip97en.html (1110 words)

	UC Davis Geology: GSA Meeting Abstracts
		The Loess Plateau of north central China (CLP) contains a 2.5 ma record of paleoclimate change.
		The modern climate is dominated by alternation of the warm, wet summer and cold, dry and windy winter monsoons.
		Former glacial climates on the CLP were dominated by winter-monsoon-like conditions and enhanced loess deposition, whereas interglacials were dominated by summer-monsoon-like conditions conducive to rapid weathering and soil formation.
	www-geology.ucdavis.edu /pubs/gsa04/wagoner04.html (372 words)

	Understanding the Geographies of China (Site not responding. Last check: 2007-09-11)
		Typical terraces and crop mixtures in the Loess Plateau.
		While not as familiar to Westerners as North or South China, the Loess Plateau is an area of great historic importance to the Chinese.
		It was on the margins of the loess areas that the great trading cities and capitals of empire first formed—Xi’an or Chang’an being the best known.
	www.aasianst.org /EAA/mccoll.htm (3175 words)

	Runoff and Sediment Responses to Conservation Practices: Loess Plateau of China (Site not responding. Last check: 2007-09-11)
		To reduce soil erosion from the Loess Plateau, conservation practices, including tree planting, ridge construction between fields and around gullies, terrace and ditch construction perpendicular to the main slope, and dam construction are being implemented.
		The objective of this study is to evaluate the effectiveness of conservation practices to control runoff and sediment yield from paired watersheds in the hilly gully region of the Loess Plateau.
		The advantage of the paired watershed approach is its sensibility in detecting differences in runoff and sediment transport by monitoring both watersheds during two periods, an initial period with no conservation practices and a treatment period with only one watershed subjected to conservation practices.
	www.awra.org /jawra/papers/J02092.html (227 words)

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