What do yellowish-brown soils and stone layers tell us about Late Quaternary landscape evolution and soil development in the humid tropics? A field study in the Serra dos Órgãos, Southeast Brazil
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- 作者：Udo Nehrena ; b ; udo.nehren@th-koeln.de" class="auth_mail" title="E-mail the corresponding author ; André ; Kirchnerb ; Jü ; rgen Heinrichb
- 关键词：Yellowish-brown soils ; Stone layers ; Landscape evolution ; Pedogenesis ; Southeast Brazil
- 刊名：Catena
- 出版年：2016
- 出版时间：February 2016
- 年：2016
- 卷：137
- 期：Complete
- 页码：173-190
- 全文大小：4700 K
文摘
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The origin of stone layers is polygenetic (geogenic, pedogenic, geomorphic).
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Yellowing is probably triggered by higher soil moisture under wet climate conditions.
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Pre-colonial colluvia were mainly deposited in the Late Pleistocene and Holocene.
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Modern deposits are triggered by increased human activity within the last 300 years.
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The paradigm of climate-induced activity and stability phases needs to be restricted.