Progress in isotope analysis at ultra-trace level by AMS

W Kutschera - International Journal of Mass Spectrometry, 2005 - Elsevier
This paper attempts to convey a flavor of the progress in Accelerator Mass Spectrometry
(AMS) since its initiation in 1977. During this period, AMS evolved into the most powerful …

Seasonal dynamics and age of stemwood nonstructural carbohydrates in temperate forest trees

AD Richardson, MS Carbone, TF Keenan, CI Czimczik… - New Phytologist, 2013 - JSTOR
Nonstructural carbohydrate reserves support tree metabolism and growth when current
photosynthates are insufficient, offering resilience in times of stress. We monitored …

[图书][B] Radiocarbon dating: an archaeological perspective

RE Taylor, O Bar-Yosef - 2016 - taylorfrancis.com
This volume is a major revision and expansion of Taylor's seminal book Radiocarbon
Dating: An Archaeological Perspective. It covers the major advances and accomplishments …

Divergence of reproductive phenology under climate warming

RA Sherry, X Zhou, S Gu… - Proceedings of the …, 2007 - National Acad Sciences
Because the flowering and fruiting phenology of plants is sensitive to environmental cues
such as temperature and moisture, climate change is likely to alter community-level patterns …

Global reorganization of deep-sea circulation and carbon storage after the last ice age

PA Rafter, WR Gray, SKV Hines, A Burke, KM Costa… - Science …, 2022 - science.org
Using new and published marine fossil radiocarbon (14C/C) measurements, a tracer
uniquely sensitive to circulation and air-sea gas exchange, we establish several …

Modifying a sealed tube zinc reduction method for preparation of AMS graphite targets: Reducing background and attaining high precision

X Xu, SE Trumbore, S Zheng, JR Southon… - Nuclear Instruments and …, 2007 - Elsevier
The sealed tube zinc reduction method for converting CO2 to graphite for AMS 14C
measurements was originally developed for rapid production of graphite in biomedical tracer …

Potential carbon release from permafrost soils of Northeastern Siberia

K Dutta, EAG Schuur, JC Neff… - Global Change …, 2006 - Wiley Online Library
Permafrost soils are an important reservoir of carbon (C) in boreal and arctic ecosystems.
Rising global temperature is expected to enhance decomposition of organic matter frozen in …

Age, allocation and availability of nonstructural carbon in mature red maple trees

MS Carbone, CI Czimczik, TF Keenan… - New …, 2013 - Wiley Online Library
The allocation of nonstructural carbon (NSC) to growth, metabolism and storage remains
poorly understood, but is critical for the prediction of stress tolerance and mortality. We used …

The effects of permafrost thaw on soil hydrologic, thermal, and carbon dynamics in an Alaskan peatland

JA O'Donnell, MT Jorgenson, JW Harden, AD McGuire… - Ecosystems, 2012 - Springer
Recent warming at high-latitudes has accelerated permafrost thaw in northern peatlands,
and thaw can have profound effects on local hydrology and ecosystem carbon balance. To …

Seasonal and episodic moisture controls on plant and microbial contributions to soil respiration

MS Carbone, CJ Still, AR Ambrose, TE Dawson… - Oecologia, 2011 - Springer
Moisture inputs drive soil respiration (SR) dynamics in semi-arid and arid ecosystems.
However, determining the contributions of root and microbial respiration to SR, and their …