Results 31 to 40 of about 628,378 (346)

A narrow window of summer temperatures associated with shrub growth in Arctic Alaska

open access: yesEnvironmental Research Letters, 2020
Warming in recent decades has triggered shrub expansion in Arctic and alpine tundra, which is transforming these temperature-limited ecosystems and altering carbon and nutrient cycles, fire regimes, permafrost stability, land-surface climate-feedbacks ...
Laia Andreu-Hayles   +6 more
doaj   +1 more source

The Ringing of Trees [PDF]

open access: yesBulletin of Miscellaneous Information (Royal Gardens, Kew), 1914
n ...
openaire   +1 more source

Vegetation Greening Driven by Warming and Humidification Trends in the Upper Reaches of the Irtysh River

open access: yesRemote Sensing
To effectively manage and conserve ecosystems, it is crucial to understand how vegetation changes over time and space and what drives these changes.
Honghua Cao   +6 more
doaj   +1 more source

Experimental reconstruction of monsoon drought variability for Australasia using tree rings and corals

open access: yesGeophysical Research Letters, 2008
An experimental reconstruction uses three well‐dated, annually‐resolved proxies from Australasia (0–40°S, 95–155°E) to provide large‐scale information on Sep–Jan Australasian monsoon variability based on the Palmer Drought Severity Index (PDSI) for 1787 ...
Rosanne D'Arrigo   +4 more
doaj   +1 more source

Comment on “Non-Mineralized Fossil Wood” by George E. Mustoe (Geosciences, 2018)

open access: yesGeosciences, 2018
We were pleased to see the summary article in Geosciences on fossil wood by George E. [...]
John A. Luczaj   +4 more
doaj   +1 more source

Comparing tree-ring based reconstructions of snowpack variability at different scales for the Navajo Nation

open access: yesClimate Services, 2021
Snowpack in the western U.S. is on the decline, largely attributed to increasing temperatures in the region. This is a critical issue for many Native American communities who disproportionately rely on local snow-fed water supplies.
Becky Brice   +4 more
doaj   +1 more source

Nonannual tree rings in a climate-sensitive Prioria copaifera chronology in the Atrato River, Colombia [PDF]

open access: yes, 2017
In temperate climates, tree growth dormancy usually ensures the annual nature of tree rings, but in tropical environments, determination of annual periodicity can be more complex.
Andreu-Hayles, Laia   +4 more
core   +1 more source

Spatial variability of historical fires across a red pine–oak landscape, Pennsylvania, USA

open access: yesEcosphere, 2019
Long‐term, ecosystem‐specific fire regime information improves natural community restoration and management by providing a basis for scientifically reasoned fire management prescriptions.
Joseph M. Marschall   +3 more
doaj   +1 more source

Tropical volcanoes synchronize eastern Canada with Northern Hemisphere millennial temperature variability

open access: yesNature Communications, 2022
A maximum latewood density based summer temperature reconstruction from eastern Canada shows recent warming is unprecedented over 1246 years, and tropical volcanism synchronizes regional and hemispheric summer temperatures at the multidecadal time scale.
Feng Wang   +5 more
doaj   +1 more source

Chemical Composition Characteristics and Source Contributions of Precipitation in Typical Cities on the North Slope of Tianshan Mountain in Xinjiang during 2010–2019

open access: yesAtmosphere, 2022
This work presents the results of a ten-year investigation (2010–2019) on the characteristics and sources of precipitation pollution in typical cities locating in the economic belt on the North Slope of Tianshan Mountain, Xinjiang. The water-soluble ions’
Yuting Zhong   +5 more
doaj   +1 more source

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