搜索结果: 1-13 共查到“tree ring”相关记录13条 . 查询时间(0.125 秒)
Drought impacts on tree carbon sequestration and water use - evidence from intra-annual tree-ring characteristics
carbon sequestration extreme drought intrinsic water-use efficiency physiological drought point dendrometer quantitative wood anatomys table carbon isotopes xylogenesis
2023/11/20
The impact of climate extremes on forest ecosystems is poorly understood but important for predicting carbon and water cycle feedbacks to climate. Some knowledge gaps still remain regarding how drough...
Uncertainties in tree-ring-based climate reconstructions probed
Uncertainties tree-ring-based climate reconstructions
2016/2/22
Current approaches to reconstructing past climate by using tree-ring data need to be improved on so that they can better take uncertainty into account, new University of Otago-led suggests.Tree growth...
Tree-ring cellulose d18O variability in pine and oak and its potential to reconstruct precipitation and relative humidity in central Japan
tree-ring cellulose d18O pine oak precipitation relative humidity central Japan
2017/4/10
Oxygen isotope ratios (d18O) of tree-ring cellulose in pine (Pinus densiflora) and oak (Quercus serrate and Quercus
variabilis) growing in central Japan from 1970 to 2011 share a common inter-annual ...
Detrending ability of several regression equations in tree-ring research: a case study based on tree-ring data of Norway spruce (Picea abies [L.])
radial increment growth functions empirical fitting tree-ring indices dendroclimatology
2015/3/27
The aim of this study was to investigate tree-ring width variability and to distinguish groups of trees with similar growth trends in order to study tree growth responses to various stand and site con...
Variation of the tree ring micro-hardness demonstrated on spruce wood
wood tree ring micro-hardness penetration strength
2015/2/2
Micro-hardness was used for the study of wood structure (Norway spruce) in the line perpendicular to tree rings (radial surface). The steel indentor 0.25 mm in diameter with flat head was used for thi...
Tree ring-based February–April temperature reconstruction for Changbai Mountain in Northeast China and its implication for East Asian winter monsoon
February–April temperature Northeast China Changbai Mountain winter monsoon
2009/12/3
Long-term climatic records are scarce in the northeast Asia for understanding the behavior of the East Asian Winter Monsoon. Here we describe a 250-year February–April temperature reconstruction (TCBM...
Main Patterns of Variability in Beech Tree-Ring Chronologies from Different Sites in Slovenia and Their Relation to Climate
beech Fagus sylvatica Slovenia dendrochronology tree-rings local chronologies climate
2009/11/27
Fourteen local tree-ring chronologies of beech (Fagus sylvatica L.) from different sites in Slovenia, elevations 300-1,415 m a.s.l., were constructed. Basic
statistics of the chronologies (raw, stand...
THE INFLUENCE OF CLIMATE ON TREE-RING MAXIMUM LATEWOOD DENSITY IN NORWAY SPRUCE (Picea abies (L.) Karst.) AT TWO SITES IN SLOVENIA
Norway spruce (Picea abies (L.) Karst.) climate maximum latewood density MXD densitometry
2009/11/27
Norway spruce (Picea abies (L.) Karst.) is frequently the object of dendrochronological research owing to its distribution, wood structure and longevity. The Norway spruce chronologies published in Sl...
Tree-Ring:一种结构化的应用层组播模型
应用层组播 对等网 组通信
2009/8/3
在分析现有应用层组播协议基础上，提出Tree-Ring模型，该模型构建于Pastry之上，采用Pastry的路由与定位机制，构造一个树与环相结合的覆盖网络。实验显示，模型中70%以上的节点出度为1，80%以上的节点的相对延迟比控制在2.7以内。结果表明，Tree-Ring能有效地平衡节点负载，满足大规模网络中大内容传播的需要。
Present State and Prospects of Research on Tree-ring Analysis in Japan
tree ring dendrochronology dendroclimatology standardization function environmentology
2009/3/6
In this paper, I have introduced the current status and outlook for the field of tree ring analysis research in Japan, including dendrochronology, dendroclimatology and environmentology. There was a ...
Tree-ring based reconstruction of the seasonal timing, major events and origin of rockfall on a case-study slope in the Swiss Alps
the seasonal timing major events origin of rockfall the Swiss Alps
2009/12/30
The intra-annual position of callus tissue and of tangential rows of traumatic resin ducts was determined in order to reconstruct the seasonality of past rockfall events. Results indicate strong intra...
Tree-ring analysis in natural hazards research – an overview
Tree-ring analysis natural hazards research
2009/12/30
The understanding of geomorphic processes and knowledge of past events are important tasks for the assessment of natural hazards. Tree rings have on varied occasions proved to be a reliable tool for t...
How unusual was late 20th century El Niño-Southern Oscillation (ENSO)? Assessing evidence from tree-ring, coral, ice-core and documentary palaeoarchives, A.D. 1525-2002
late 20th century El Niñ o-Southern Oscillation tree-ring, coral, ice-core and documentary palaeoarchives
2010/1/25
Multiple proxy records (tree-ring, coral, ice and documentary) were examined to isolate ENSO signals associated with both phases of the phenomenon for the period A.D. 1525-2002. To avoid making large-...