Browsing by Author "Richter, DD"

A formal Anthropocene is compatible with but distinct from its diachronous anthropogenic counterparts: a response to W.F. Ruddiman’s ‘three flaws in defining a formal Anthropocene’

Zalasiewicz, J; Waters, CN; Head, MJ; Poirier, C; Summerhayes, CP; Leinfelder, R; Grinevald, J; ... (18 authors) (Progress in Physical Geography, 2019-06-01)

© The Author(s) 2019. We analyse the ‘three flaws’ to potentially defining a formal Anthropocene geological time unit as advanced by Ruddiman (2018). (1) We recognize a long record of pre-industrial human impacts, but note ...

Designing a network of critical zone observatories to explore the living skin of the terrestrial Earth

Brantley, SL; McDowell, WH; Dietrich, WE; White, TS; Kumar, P; Anderson, SP; Chorover, J; ... (12 authors) (Earth Surface Dynamics, 2017-12-18)

The critical zone (CZ), the dynamic living skin of the Earth, extends from the top of the vegetative canopy through the soil and down to fresh bedrock and the bottom of the groundwater. All humans live in and depend on the ...

Estimates and determinants of stocks of deep soil carbon in Gabon, Central Africa

Wade, AM; Richter, DD; Medjibe, VP; Bacon, AR; Heine, PR; White, LJT; Poulsen, JR (Geoderma, 2019-05-01)

© 2019 Despite the importance of tropical forest carbon to the global carbon cycle, research on carbon stocks is incomplete in major areas of the tropical world. Nowhere in the tropics is this more the case than in Africa, ...

Game Changer in Soil Science. The Anthropocene in soil science and pedology.

Richter, DD (Journal of Plant Nutrition and Soil Science, 2020-02-01)

© 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim The venerable science of pedology, initiated in the 19th century as the study of the natural factors of soil formation, is adapting to the demands of the Anthropocene, ...

Ideas and perspectives: Strengthening the biogeosciences in environmental research networks

Richter, DD; Billings, SA; Groffman, PM; Kelly, EF; Lohse, KA; McDowell, WH; White, TS; ... (30 authors) (Biogeosciences, 2018-08-15)

© Author(s) 2018. Long-term environmental research networks are one approach to advancing local, regional, and global environmental science and education. A remarkable number and wide variety of environmental research networks ...

Limited carbon contents of centuries old soils forming in legacy sediment

Wade, AM; Richter, DD; Cherkinsky, A; Craft, CB; Heine, PR (Geomorphology, 2020-04)

Modifications of 2:1 clay minerals in a kaolinite-dominated Ultisol under changing land-use regimes

Austin, JC; Perry, A; Richter, DD; Schroeder, PA (Clays and Clay Minerals, 2018-02-01)

© 2018, Clay Minerals Society. All rights reserved. Chemical denudation and chemical weathering rates vary under climatic, bedrock, biotic, and topographic conditions. Constraints for landscape evolution models must consider ...

Persistent anthropogenic legacies structure depth dependence of regenerating rooting systems and their functions

Hauser, E; Richter, DD; Markewitz, D; Brecheisen, Z; Billings, SA (Biogeochemistry, 2020-02-01)

© 2020, Springer Nature Switzerland AG. Biotically-mediated weathering helps to shape Earth’s surface. For example, plants expend carbon (C) to mobilize nutrients in forms whose relative abundances vary with depth. It thus ...

Quantification of Mixed-Layer Clays in Multiple Saturation States Using NEWMOD2: Implications for the Potassium Uplift Hypothesis in the SE United States

Austin, JC; Richter, DD; Schroeder, PA (Clays and Clay Minerals, 2020-02-01)

© 2020, The Clay Minerals Society. Quantification of mineral assemblages in near-surface Earth materials is a challenge because of the often abundant and highly variable crystalline and chemical nature of discrete clay minerals. ...