Results 101 to 110 of about 61,211 (288)

Impacts of reindeer grazing on phosphorus sorption and nutrient availability in a tundra site

open access: yesOikos, EarlyView.
Reindeer Rangifer tarandus, a large circumpolar herbivore, can influence whether nitrogen (N) or phosphorus (P) is the primary limiting nutrient in tundra plant communities. Specifically, findings from a site in northern Scandinavia suggest that under conditions where reindeer grazing stimulates inorganic N availability, grazing may drive ecosystems ...
Jerzy Szejgis   +5 more
wiley   +1 more source

Application of geochemical modelling and multiple regression analysis to reassess groundwater evolution in Kaduna Basin, NW Nigeria

open access: yesDiscover Water
Geochemical modelling (GM) and multiple regression analysis (MRA) are applied to reassess the evolution of groundwater to understand and estimate groundwater's quality and chemical changes.
Saadu Umar Wali   +5 more
doaj   +1 more source

Chemical elements in our environment [PDF]

open access: yes, 2010
Humans are intimately linked to the Earth’s surface environment; we are fundamentally dependent on it, yet we are responsible for many aspects of environmental change.
Scheib, Cathy
core  

Past, present and future of local crop evolution

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Promoting agrobiodiversity is a promising strategy for mitigating the negative effects of climate change on global food security. We highlight the central role evolutionary processes play in harnessing the potential of local crops by integrating genomics, archaeology, ethnobotany and traditional ecological knowledge (TEK).
Nataly Allasi Canales   +6 more
wiley   +1 more source

Tephra data from varved lakes of the Last Glacial–Interglacial Transition: towards a global inventory and better chronologies on the Varved Sediments Database (VARDA) [PDF]

open access: yesEarth System Science Data
The Varved Sediments Database (VARDA) was launched in 2020 and aimed to establish a community database for annually resolved chronological archives with their associated high-resolution proxy records.
A. Beckett   +10 more
doaj   +1 more source

Soil uranium, soil gas radon and indoor radon empirical relationships in the UK and other European countries [PDF]

open access: yes, 2010
Least squares (LS) regression analysis is used to develop empirical relationships between uranium in the ground, radon in soil and radon in dwellings to assist in the development of a geogenic radon potential map for Europe.
Appleton, J.D., Miles, J.C.H.
core  

Using Fine Sediment Monitoring to Quantify Sand Loading Over Time

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT Riverine sand loading can lead to geomorphic change, impacting river processes like lateral migration and vertical aggradation or degradation. Yet many sediment monitoring programs track only fine sediment measurable as total suspended solids (TSS). Here, we assess the ability for TSS data to be used to determine sand loading.
Andrew P. Kasun, Karen B. Gran
wiley   +1 more source

Tephrochronology: principles, functioning, application [PDF]

open access: yes, 2011
Tephrochronology is a unique method for linking and dating geological, palaeoecological, palaeoclimatic or archaeological sequences or events. The method relies firstly and fundamentally on stratigraphy and the law of superposition, which apply in any ...
Lowe, David J.
core   +1 more source

Tectonic significance of changes in post-subduction Pliocene-Quaternary magmatism in the south east part of the Carpathian-Pannonian Region [PDF]

open access: yes, 2010
The south-eastern part of the Carpathian–Pannonian region records the cessation of convergence between the European platform/Moesia and the Tisza–Dacia microplate.
Alexandru Szakács   +112 more
core   +2 more sources

Strategies for Assessing Post‐Wildfire Geomorphic Resilience in Semiarid Rivers

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT We review and summarize diverse components of a catchment that can be monitored after wildfire to assess the geomorphic resilience of the river corridor in semiarid regions. We distinguish upland portions of river catchments from river corridors.
Ellen Wohl   +8 more
wiley   +1 more source

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