Age-Dependent Changes in Environmental Influences on Tree Growth and Their Implications for Forest Responses to Climate Change

摘要: Dendrochronology has long used tree-rings to better understand ­climate-tree-growth relationships within a site or across region, with tree age often considered contribute unwanted noise the signal in question. Here I demonstrate that strong climate-tree-growth exist sites, on global scale, and these changes are correlated variation average net primary productivity. The age-specific tree-ring data analyses here show sensitivity of growth environmental variability predictably age. Young trees were found be particularly sensitive each factors investigated. These results discussed context climate change established morphology physiological function size. argue explicitly treating forest can yield tangible improvements projection terrestrial carbon sink responses by increasing accuracy which non-forest ecosystem boundaries projected.