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020 ▼a 9780355985078
035 ▼a (MiAaPQ)AAI10793438
035 ▼a (MiAaPQ)arizona:16192
040 ▼a MiAaPQ ▼c MiAaPQ ▼d 248032
0491 ▼f DP
0820 ▼a 631.4
1001 ▼a Shepard, Christopher.
24510 ▼a Understanding Quaternary Soil Formation Using a Synthesis of Soil Chronosequences.
260 ▼a [S.l.] : ▼b The University of Arizona., ▼c 2018
260 1 ▼a Ann Arbor : ▼b ProQuest Dissertations & Theses, ▼c 2018
300 ▼a 272 p.
500 ▼a Source: Dissertation Abstracts International, Volume: 79-10(E), Section: B.
500 ▼a Adviser: Craig Rasmussen.
5021 ▼a Thesis (Ph.D.)--The University of Arizona, 2018.
520 ▼a Soil formation represents a suite of biogeochemical and physical processes that transform rock and sediment into a complex, organized system that sustains life. Soils are at the heart of the critical zone, the thin outermost veneer of the Earth'
520 ▼a I hypothesized that Quaternary climate change, driven by orbitally modulated insolation, is likely responsible for the observed patterns of soil evolution and preservation, and distributions of modern soil properties. Rapid climate change from g
520 ▼a Clays are the main soil formation product, and are a key variable for understanding the hydrology and biology of soils. Using the soil chronosequence database, a humped behavior in clay production was observed
520 ▼a Given the variability in past environmental conditions and uncertainty in the initial soil state, soil formation is highly variable. Using a probabilistic formulation of Jenny's soil state factor model, parameterized using a time-integrated meas
590 ▼a School code: 0009.
650 4 ▼a Soil sciences.
650 4 ▼a Geomorphology.
650 4 ▼a Paleoclimate science.
690 ▼a 0481
690 ▼a 0484
690 ▼a 0653
71020 ▼a The University of Arizona. ▼b Soil, Water & Environmental Science.
7730 ▼t Dissertation Abstracts International ▼g 79-10B(E).
773 ▼t Dissertation Abstract International
790 ▼a 0009
791 ▼a Ph.D.
792 ▼a 2018
793 ▼a English
85640 ▼u http://www.riss.kr/pdu/ddodLink.do?id=T14997755 ▼n KERIS
980 ▼a 201812 ▼f 2019
990 ▼a 관리자 ▼b 관리자