Results 11 to 20 of about 73,689 (266)

Reconstructed summertime (June–July) streamflow dating back to 1788 CE in the Kazakh Uplands as inferred from tree rings

Journal of Hydrology: Regional Studies, 2022
Study region: Ishim-Tobol River Basin, Northern Kazakhstan Study focus: In this study, an ensemble reconstruction of the June–July streamflow from the Ishim-Tobor River was carried out using random forest (RF), K-nearest neighbor (KNN) and multiple ...
Xiaoen Zhao, Ruibo Zhang, Feng Chen, Bagila Maisupova, Vitaliy Kirillov, Bulkair Mambetov, Shulong Yu, Qing He, Daniyar Dosmanbetov, Nurzhan Kelgenbayev   +9 more
doaj   +1 more source

Branch rings, thinned rings, tree enveloping rings [PDF]

Israel Journal of Mathematics, 2006
We develop the theory of ``branch algebras'', which are infinite-dimensional associative algebras that are isomorphic, up to taking subrings of finite codimension, to a matrix ring over themselves. The main examples come from groups acting on trees. In particular, for every field k we construct a k-algebra K which (1) is finitely generated and infinite-
openaire   +4 more sources

Critical temperatures controlling the phenology and radial growth of Pinus sylvestris var. Mongolica on the southern margin of a cold temperate coniferous forest

Ecological Indicators, 2021
Temperature plays a key role in phenology and growth of dominant tree species and hence in the structure and function of coniferous forests in cold temperate zones.
Junxia Li, Fangbo Song, Yuting Jin, Ruixin Yun, Zhenju Chen, Zhaoyang Lyu, Ying Zhao, Di Cui   +7 more
doaj   +1 more source

Seven centuries of reconstructed Brahmaputra River discharge demonstrate underestimated high discharge and flood hazard frequency

Nature Communications, 2020
This study investigates flood hazards of the Brahmaputra River, Bangladesh. Based on a tree ring reconstruction of seasonal river discharge, climate modelling, and historic documentation of flood events, the authors suggest flood hazard risk is ...
Mukund P. Rao, Edward R. Cook, Benjamin I. Cook, Rosanne D. D’Arrigo, Jonathan G. Palmer, Upmanu Lall, Connie A. Woodhouse, Brendan M. Buckley, Maria Uriarte, Daniel A. Bishop, Jun Jian, Peter J. Webster   +11 more
doaj   +1 more source

The annual rhythmic differentiation of Populus davidiana growth–climate response under a warming climate in The Greater Hinggan Mountains

Global Ecology and Conservation, 2021
The stability and balance of forest ecosystems have been seriously affected by climate change. Herein, we use dendrochronological methods to investigate the radial growth and climate response of pioneer tree species in the southern margin of cold ...
Ruixin Yun, Yuting Jin, Junxia Li, Zhenju Chen, Zhaoyang Lyu, Ying Zhao, Di Cui   +6 more
doaj   +1 more source

Optimal capacitated ring trees [PDF]

EURO Journal on Computational Optimization, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hill A., Voss S.
openaire   +4 more sources

Sampling bias overestimates climate change impacts on forest growth in the southwestern United States

Nature Communications, 2018
Sampling strategies may bias tree-ring datasets to not accurately represent the regional response to climate change. Here, Klesse et al. use a new representative dataset to show that the International Tree-Ring Data Bank in the U.S.
Stefan Klesse, R. Justin DeRose, Christopher H. Guiterman, Ann M. Lynch, Christopher D. O’Connor, John D. Shaw, Margaret E. K. Evans   +6 more
doaj   +1 more source

Annual streamflow of Jinghe River basin in northern slope of Tianshan Mountains recorded by tree-ring during 1615—2007

Shui kexue jinzhan, 2014
Tree-ring width from northern slopes of Tianshan Mountains is of great potential for hydroclimate reconstruction. Tree-ring width data of Picea schrenkiana from two sites which are located at Jinghe River basin were collected and developed into tree-ring
SHANG Huaming, YIN Zifeng, CHEN Zhijun, WEI Wenshou, YUAN Yujiang, CHEN Rongyi   +5 more
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Radial Growth Responses of Four Southeastern USA Pine Species to Summertime Precipitation Event Types and Intense Rainfall Events

Atmosphere, 2022
Previous dendroclimatic studies have examined the relationship between total precipitation amounts and tree radial growth in the southeastern USA, yet recent studies indicate that specific precipitation event types and rainfall intensities influence ...
Tyler J. Mitchell, Paul A. Knapp
doaj   +1 more source

Recent enhanced high-summer North Atlantic Jet variability emerges from three-century context

Nature Communications, 2018
Long-term records of jet stream variability are needed to place recent mid-latitude extreme weather events into a historical context. Here, using tree-ring records from Europe, the authors reconstruct variability in the latitudinal position of the high ...
V. Trouet, F. Babst, M. Meko
doaj   +1 more source