User profiles for D. G. zaharescu

Dragos George Zaharescu

Project Scientist, University of California Davis
Verified email at ucdavis.edu
Cited by 507

Trace metals and their source in the catchment of the high altitude Lake Respomuso, Central Pyrenees

DG Zaharescu, PS Hooda, AP Soler… - Science of the Total …, 2009 - Elsevier
Lake Respomuso is a dammed lake of glacial origin at 2200 m altitude in the Central Pyrenees.
This study investigated the source of a number of trace elements (As, Cd, Co, Cu, Mn, Ni, …

Mineral nutrient mobilization by plants from rock: influence of rock type and arbuscular mycorrhiza

C Burghelea, DG Zaharescu, K Dontsova, R Maier… - Biogeochemistry, 2015 - Springer
Rock colonization by plant roots and their associated microbiota is one of the major drivers
of mineral weathering, nutrient cycling, soil formation and ecosystem stability. Yet the …

[HTML][HTML] Ecosystem composition controls the fate of rare earth elements during incipient soil genesis

DG Zaharescu, CI Burghelea, K Dontsova… - Scientific Reports, 2017 - nature.com
The rare earth elements (REE) are increasingly important in a variety of science and economic
fields, including (bio)geosciences, paleoecology, astrobiology, and mining. However, …

Trace element mobilization during incipient bioweathering of four rock types

CI Burghelea, K Dontsova, DG Zaharescu… - … et Cosmochimica Acta, 2018 - Elsevier
Lithogenic trace element (TE) patterns of distribution, fate, and behavior in soils are influenced
by plants and microorganisms. Our controlled mesocosm experiments quantified how …

Predatory aquatic beetles, suitable trace elements bioindicators

CI Burghelea, DG Zaharescu, PS Hooda… - Journal of …, 2011 - pubs.rsc.org
Predatory aquatic beetles are common colonizers of natural and managed aquatic environments.
While as important components of the aquatic food webs they are prone to accumulate …

[HTML][HTML] A coupled microscopy approach to assess the nano-landscape of weathering

…, E Rooney, PA Schroeder, DG Zaharescu… - Scientific reports, 2019 - nature.com
Mineral weathering is a balanced interplay among physical, chemical, and biological processes.
Fundamental knowledge gaps exist in characterizing the biogeochemical mechanisms …

[HTML][HTML] Ecosystem-bedrock interaction changes nutrient compartmentalization during early oxidative weathering

DG Zaharescu, CI Burghelea, K Dontsova, JK Presler… - Scientific reports, 2019 - nature.com
Ecosystem-bedrock interactions power the biogeochemical cycles of Earth’s shallow crust,
supporting life, stimulating substrate transformation, and spurring evolutionary innovation. …

Climate change enhances the mobilisation of naturally occurring metals in high altitude environments

DG Zaharescu, PS Hooda, CI Burghelea… - Science of the Total …, 2016 - Elsevier
Manmade climate change has expressed a plethora of complex effects on Earth's
biogeochemical compartments. Climate change may also affect the mobilisation of natural metal …

Biological weathering in the terrestrial system: an evolutionary perspective

DG Zaharescu, CI Burghelea… - Biogeochemical …, 2020 - Wiley Online Library
Weathering is the process by which a solid breaks up into its building blocks when in
thermodynamic disequilibrium with the surrounding environment. Weathering plays an important …

Small lakes in big landscape: Multi-scale drivers of littoral ecosystem in alpine lakes

DG Zaharescu, CI Burghelea, PS Hooda… - Science of the total …, 2016 - Elsevier
In low nutrient alpine lakes, the littoral zone is the most productive part of the ecosystem, and
it is a biodiversity hotspot. It is not entirely clear how the scale and physical heterogeneity of …