Results 51 to 60 of about 13,659 (213)

Drought Sensitivity of Slash Pine and Longleaf Pine Deduced by Tree Ring Analysis [PDF]

open access: yes, 2014
Annual tree rings give us the opportunity to investigate the adaptation of trees to climate and environmental changes over a long period of time. In particular, the physical characteristics of each ring (width and earlywood and late wood differentiation)
Madison, Conor
core   +1 more source

Retrospective Analysis of Wood Anatomical Traits Reveals a Recent Extension in Tree Cambial Activity in Two High-Elevation Conifers [PDF]

open access: yes, 2017
The study of xylogenesis or wood formation is a powerful, yet labor intensive monitoring approach to investigate intra-annual tree growth responses to environmental factors.
Angela L. Prendin   +5 more
core   +2 more sources

Assessing the Vulnerability of an Inuit Archaeological Site in a Changing Periglacial Environment: A Novel Multimethod Geophysical Approach in Arctic Geoarchaeology

open access: yesArchaeometry, EarlyView.
ABSTRACT With northern regions warming at twice the global rate, assessing the state of archaeological sites in these areas is critically important. In this study, we used a multimethod geophysical approach (ERT, GPR, and EMI) to characterize the current geocryological conditions of an Inuit archaeological site on South Aulatsivik Island (Labrador ...
Rachel Labrie   +5 more
wiley   +1 more source

Ecological evaluation of dominant roadside plants through APTI and API for sustainable green belt development in cosmopolitan city (Lahore) of Pakistan

open access: yesScientific Reports
Keeping in view the potential role of plants in pollution abatement, reclamation of urban forest cover and carbon sequestration, fifteen (15) plant species growing along 7 busiest roads in the city of Lahore were ecologically evaluated using analytical ...
Aneela Rasool   +11 more
doaj   +1 more source

Airborne Laser Scanning Cartography of On-Site Carbon Stocks as a Basis for the Silviculture of Pinus Halepensis Plantations

open access: yesRemote Sensing, 2018
Forest managers are interested in forest-monitoring strategies using low density Airborne Laser Scanning (ALS). However, little research has used ALS to estimate soil organic carbon (SOC) as a criterion for operational thinning.
Rafael Mª Navarro-Cerrillo   +4 more
doaj   +1 more source

A century of tree line changes in sub-Arctic Sweden shows local and regional variability and only a minor influence of 20th century climate warming [PDF]

open access: yes, 2011
Aim Models project that climate warming will cause the tree line to move to higher elevations in alpine areas and more northerly latitudes in Arctic environments.
Callaghan, Terry V   +5 more
core   +1 more source

Ring‐Width Dendrochronology, Isotopic Dendrochronology and Radiocarbon Dating of Timbers From the Spire Scaffold of Salisbury Cathedral, Wiltshire, England

open access: yesArchaeometry, EarlyView.
ABSTRACT Ten timbers from the spire scaffold of Salisbury Cathedral were dated using a combination of ring‐width dendrochronology, stable oxygen isotopic dendrochronology and radiocarbon dating. Seven timbers were coeval and assigned a combined empirical felling date range of 1352–1378, which was further refined to 1351–1359 (OxCal 95.4%).
Kutsi D. Akcicek   +5 more
wiley   +1 more source

Assessing spatial distribution and quantification of native trees in Saskatchewan’s prairie landscape using remote sensing techniques

open access: yesEuropean Journal of Remote Sensing
The importance of trees in non-forest landscapes has been the focus of only a few studies. However, these trees provide many important ecosystem services. In this study, we mapped and quantified these trees using Sentinel-2 (S2) and very high-resolution (
Elham Shafeian   +3 more
doaj   +1 more source

Assessment of the Carbon Stock in Pine Plantations in Southern Spain through ALS Data and K-Nearest Neighbor Algorithm Based Models

open access: yesGeosciences, 2019
Accurate estimation of forest biomass to enable the mapping of forest C stocks over large areas is of considerable interest nowadays. Airborne laser scanning (ALS) systems bring a new perspective to forest inventories and subsequent biomass estimation ...
Miguel A. Navarrete-Poyatos   +5 more
doaj   +1 more source

The assessment of present, past and future climatic variability in the americas from tree-line environments [PDF]

open access: yes, 2001
In this note we introduce one of 14 Collaborative Research Networks (CRN) funded by the Inter-American Institute for Global Change Research. It was established in 1999 and involves 15 principal investigators from 13 institutions in Canada, USA, Mexico ...
Boninsegna, Jose Armando   +1 more
core   +1 more source

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