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Understanding Human Settlements in the Yunnan Province of China through δ13C and δ15N Isotope Analysis of a Lake Sediment Core.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Understanding Human Settlements in the Yunnan Province of China through δ13C and δ15N Isotope Analysis of a Lake Sediment Core./
作者:	Lyons, Moira Nicole.
面頁冊數:	1 online resource (41 pages)
附註:	Source: Masters Abstracts International, Volume: 83-01.
Contained By:	Masters Abstracts International83-01.
標題:	Geology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=13878034click for full text (PQDT)
ISBN:	9798522905224

Understanding Human Settlements in the Yunnan Province of China through δ13C and δ15N Isotope Analysis of a Lake Sediment Core.
Lyons, Moira Nicole.

Understanding Human Settlements in the Yunnan Province of China through δ13C and δ15N Isotope Analysis of a Lake Sediment Core. - 1 online resource (41 pages)

Source: Masters Abstracts International, Volume: 83-01.

Thesis (M.S.)--University of Louisiana at Lafayette, 2019.

Includes bibliographical references

Lake Qilu is a relatively large, shallow lake with an average depth of 4 m and a maximum depth of 7 m. Located in the east central Yunnan Province, this freshwater lake lies 1,797 m above sea level and has one man-made outflow but primarily loses water through evaporation. Previous work in this region of China indicates human manipulation of the hydrology of lakes occurred since the late Holocene through farming, mining, land clearing, and other practices related to human settlement. In 2015, a 6 m overlapping sediment record was collected from Qilu with the purpose of quantifying the magnitude, timing, and duration of anthropogenic impact on the lake in comparison to previous studies. Beginning at 800 years AD, sedimentology and stratigraphy indicate a gradual transition from brown/grey carbonate silt to red very fine-grained clay similar to catchment soils, strongly suggesting anthropogenic land use change and clearance. In order to understand the magnitude of preindustrial human activity on Lake Qilu and the surrounding watershed, this study will look at the isotopic composition of organic carbon, nitrogen, and carbon/nitrogen ratios, and use oxygen isotopes, inorganic carbon isotopes and phosphorous data as supplemental information to evaluate the extent of human induced nutrient loading at Lake Qilu and the resulting correlation to dynastic transitions in the Yunnan Province.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798522905224Subjects--Topical Terms:

516570
Geology.
Subjects--Index Terms:

Carbon 13Index Terms--Genre/Form:

542853
Electronic books.

Understanding Human Settlements in the Yunnan Province of China through δ13C and δ15N Isotope Analysis of a Lake Sediment Core.
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504 $a Includes bibliographical references
520 $a Lake Qilu is a relatively large, shallow lake with an average depth of 4 m and a maximum depth of 7 m. Located in the east central Yunnan Province, this freshwater lake lies 1,797 m above sea level and has one man-made outflow but primarily loses water through evaporation. Previous work in this region of China indicates human manipulation of the hydrology of lakes occurred since the late Holocene through farming, mining, land clearing, and other practices related to human settlement. In 2015, a 6 m overlapping sediment record was collected from Qilu with the purpose of quantifying the magnitude, timing, and duration of anthropogenic impact on the lake in comparison to previous studies. Beginning at 800 years AD, sedimentology and stratigraphy indicate a gradual transition from brown/grey carbonate silt to red very fine-grained clay similar to catchment soils, strongly suggesting anthropogenic land use change and clearance. In order to understand the magnitude of preindustrial human activity on Lake Qilu and the surrounding watershed, this study will look at the isotopic composition of organic carbon, nitrogen, and carbon/nitrogen ratios, and use oxygen isotopes, inorganic carbon isotopes and phosphorous data as supplemental information to evaluate the extent of human induced nutrient loading at Lake Qilu and the resulting correlation to dynastic transitions in the Yunnan Province.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2023
538 $a Mode of access: World Wide Web
650 4 $a Geology. $3 516570
650 4 $a Paleoclimate science. $3 3173835
650 4 $a Cultural anthropology. $3 2122764
650 4 $a Environmental science. $3 677245
650 4 $a Sedimentary geology. $3 3173828
650 4 $a Regression analysis. $3 529831
650 4 $a Clay. $3 537738
650 4 $a Trends. $3 3560051
650 4 $a Land settlement. $3 586554
650 4 $a Bacteria. $3 550366
650 4 $a Geochemistry. $3 539092
650 4 $a Sediments. $3 3566210
650 4 $a Scientific imaging. $3 3560377
650 4 $a Climate change. $2 bicssc $3 2079509
650 4 $a Nitrogen. $3 1314426
650 4 $a Deforestation. $3 600701
650 4 $a Eutrophication. $3 896350
650 4 $a Agriculture. $3 518588
650 4 $a Mass spectrometry. $3 551172
650 4 $a Precipitation. $3 3680799
650 4 $a Lakes. $3 546147
650 4 $a Algae. $3 546231
650 4 $a Carbon. $3 604057
650 4 $a Watersheds. $3 544815
650 4 $a Isotopes. $3 664463
650 4 $a Carbon cycle. $3 3566213
650 4 $a Sedimentation & deposition. $3 3566241
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653 $a Nitrogen 15
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653 $a Anthropogenic land use
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773 0 $t Masters Abstracts International $g 83-01.
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