Species-Specific Response to Climate Change: Evident through Retrospective Analysis Using Tree Ring Data

Climate Reconstruction Using Tree-Ring Data

Instrument records from the past 200 years support a scientific consensus that climate is changing Trenberth et al. (2007). What is less clear is how to interpret these changes in an historical context spanning many hundreds, or thousands, or tens of thousands of years. The statistical question is this: how do we quantify and model historical climate without having direct observations beyond th...

Selecting tree species for testing climate change migration hypotheses using forest inventory data

The lack of objective tree species lists hinders the assessment of climate change effects on tree species distributions. The goal of this studywas to develop and evaluate criteria for selecting tree species used in large-scale tree migration monitoring efforts. The results of this study indicate that tree migration conclusions are highly dependant on the species selected for examination. It was...

Relationships of climate change and tree ring of Betula ermanii

Based on the tree-ring growth characteristics of Erman’s birch (Betula ermanii charm.) and the relationships between it and climatic factors at elevation of 1950m, the sensitivity of tree lines in Changbai Mountain to climatic factors was assessed. The results indicated tree line forest in Changbai Mountain had an obvious sensitivity to climate factors. However, difference from other study sits...

A Model-Based Approach to Climate Reconstruction Using Tree-Ring Data

Quantifying long-term historical climate is fundamental to understanding recent climate change. Most instrumentally recorded climate data are only available for the past 200 years, so proxy observations from natural archives are often considered. We describe a model-based approach to reconstructing climate defined in terms of raw tree-ring measurement data that simultaneously accounts for noncl...

Principal Component Analysis of Crop Yield Response to Climate Change