Results 31 to 40 of about 26,492 (206)

Beyond habitat boundaries: Organic matter cycling requires a system‐wide approach for accurate blue carbon accounting

open access: yesLimnology and Oceanography, Volume 67, Issue S2, Page S6-S18, November 2022., 2022
Abstract As coastal ecosystems become widely recognized for their capacity to sequester carbon (blue carbon), standard accounting methodologies for the generation of carbon credits are being developed. To ensure the applicability of these standards across blue carbon ecosystems, we investigated organic carbon provenance and burial in salt marshes and ...
Johannes Renke Krause   +7 more
wiley   +1 more source

CONTEXTOS MORTUORIOS EN LA CUENCA DEL RÍO RAMADILLAS (PRE-CORDILLERA DE LA REGIÓN DE ATACAMA, CHILE): DATACIONES Y ANÁLISIS DE ISÓTOPOS ESTABLES

open access: yesChungara - Revista de Antropología Chilena, 2021
Se presentan los resultados de las dataciones radiocarbónicas y los análisis de isótopos estables de C, N y O de siete individuos, cuatro infantes y tres adultos, recuperados de contextos mortuorios prehispánicos de la precordillera de la Región de ...
P. Díaz   +3 more
semanticscholar   +1 more source

Water use partitioning of native and non‐native tree species in riparian ecosystems under contrasting climatic conditions

open access: yesFunctional Ecology, Volume 36, Issue 10, Page 2480-2492, October 2022., 2022
Read the free Plain Language Summary for this article on the Journal blog. Abstract One of the suggested mechanisms behind the success of non‐native plants in recipient ecosystems is competition avoidance with natives by means of different resource‐use strategies, such as deeper water uptake under dry conditions.
Elena Granda   +3 more
wiley   +1 more source

Estudos de crustáceos decápodes com isótopos estáveis: Análise bibliométrica entre 2010 e 2020

open access: yesConjecturas, 2021
Este trabalho tem como objetivo apresentar análise bibliométrica sobre a utilização de isótopos estáveis em estudos com decápodes na última década (2010-2020).
Keltony de Aquino Ferreira   +2 more
semanticscholar   +1 more source

Dual‐isotope approach for assessing agricultural management effects on nutrient dynamics: Proof of concept

open access: yesAgrosystems, Geosciences &Environment, Volume 5, Issue 4, 2022., 2022
Abstract Quantifying the impact of long‐term agricultural management on nutrient fate and transport is critical for developing sustainable management solutions. In this study, the utility of a dual‐isotope approach, combining soil δ15N with analysis of δ18O of phosphate (δ18Op), was assessed at the Riesel Watershed in the Texas Blackland Prairies.
Janae Bos   +3 more
wiley   +1 more source

O que os isótopos de estrôncio nos ensinam sobre as águas subterrâneas

open access: yesDerbyana, 2021
As razões entre os isótopos de estrôncio (87Sr/86Sr) constituem excelentes traçadores de processos hidrogeoquímicos. Isso se deve a sua característica conservativa, ou seja, não serão fracionados por processos geológicos superficiais, como, por exemplo ...
Carolina Stager Quaggio   +2 more
semanticscholar   +1 more source

Land‐use legacies influence tree water‐use efficiency and nitrogen availability in recently established European forests

open access: yesFunctional Ecology, Volume 35, Issue 6, Page 1325-1340, June 2021., 2021
A free Plain Language Summary can be found within the Supporting Information of this article. Abstract Forest regrowth following farmland (agriculture and pasture) abandonment has been positively associated with a number of processes including the regulation of hydrological cycling, the enhancement of soil functioning and an increase in forest ...
Rossella Guerrieri   +7 more
wiley   +1 more source

Uso dos isótopos 15N e 18O em nitrato e a sua importância em estudos de contaminação de aquíferos urbanos na América Latina

open access: yesDerbyana, 2021
Este trabalho analisa o estado atual do conhecimento sobre o uso de isótopos estáveis (15N e 18O) na identificação de fontes de nitrato e os processos que controlam o transporte e transformação das espécies nitrogenadas em aquíferos situados em áreas ...
C. Varnier   +3 more
semanticscholar   +1 more source

Contribuição dos isótopos naturais de urânio no estudo da movimentação das águas subterrâneas

open access: yesDerbyana, 2021
O urânio é um elemento litófilo, concentrando-se preferencialmente nas rochas ígneas ácidas ao invés das básicas/ultrabásicas. Sua abundância crustal média corresponde a 2,5 μg/g, possuindo dois isótopos primários, o 238U (~99,3%) e o 235U (~0,7 ...
L. H. Mancini, D. Bonotto
semanticscholar   +1 more source

La agricultura prehispánica en el nordeste argentino analizada a través de los isótopos estables

open access: yes, 2020
Through the analysis of the isotopic values of the diets (d13Ccollagen, d13Capatite, d13C and d15N), and discriminant functions based on them, the impact of agricultural practices in different archaeological units of the northeast of Argentina is ...
Daniel M. Loponte
semanticscholar   +1 more source

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