Comparing forest measurements from tree rings and a space-based index of vegetation activity in Siberia

Different methods have been developed for measuring carbon stocks and fluxes in the northern high latitudes, ranging from intensively measured small plots to space-based methods that use reflectance data to drive production efficiency models. The field of dendroecology has used samples of tree growth from radial increments to quantify long-term variability in ecosystem productivity, but these have very limited spatial domains. Since the cambium material in tree cores is itself a product of photosynthesis in the canopy, it would be ideal to link these two approaches. We examine the associations between the normalized differenced vegetation index (NDVI) and tree growth using 19 pairs of tree-ring widths (TRW) and maximum latewood density (MXD) across much of Siberia. We find consistent correlations between NDVI and both measures of tree growth and no systematic difference between MXD and TRW. At the regional level we note strong correspondence between the first principal component of tree growth and NDVI for MXD and TRW in a temperature-limited bioregion, indicating that canopy reflectance and cambial production are broadly linked. Using a network of 21 TRW chronologies from south of Lake Baikal, we find a similarly strong regional correspondence with NDVI in a markedly drier region. We show that tree growth is dominated by variation at decadal and multidecadal time periods, which the satellite record is incapable of recording given its relatively short record.

[1]  Edwin W. Pak,et al.  An extended AVHRR 8‐km NDVI dataset compatible with MODIS and SPOT vegetation NDVI data , 2005 .

[2]  Malcolm K. Hughes,et al.  Growth Dynamics of Conifer Tree Rings: Images of Past and Future Environments , 2006 .

[3]  Shamil Maksyutov,et al.  The Northern Eurasia Earth Science Partnership: An Example of Science Applied to Societal Needs , 2009 .

[4]  B. Poulter,et al.  500 years of regional forest growth variability and links to climatic extreme events in Europe , 2012 .

[5]  M. Hughes,et al.  Separating the climatic signal from tree-ring width and maximum latewood density records , 2006, Trees.

[6]  S. Goetz,et al.  High-latitude tree growth and satellite vegetation indices: Correlations and trends in Russia and Canada (1982–2008) , 2011 .

[7]  M. Hughes,et al.  The spatial variability of tree-ring growth in Siberian region during the last century , 2002 .

[8]  Andrew G. Bunn,et al.  A dendrochronology program library in R (dplR) , 2008 .

[9]  Heinrich Spiecker,et al.  Determination of forest growth trends in Komi Republic (northwestern Russia) : combination of tree-ring analysis and remote sensing data , 2006 .

[10]  Ranga B. Myneni,et al.  Temperature and vegetation seasonality diminishment over northern lands , 2013 .

[11]  Scott J. Goetz,et al.  A large-scale coherent signal of canopy status in maximum latewood density of tree rings at arctic treeline in North America , 2013 .

[12]  A. Thomson,et al.  Multi-Year Lags between Forest Browning and Soil Respiration at High Northern Latitudes , 2012, PloS one.

[13]  A H L L O Y D,et al.  A latitudinal gradient in tree growth response to climate warming in the Siberian taiga , 2010 .

[14]  S. Goetz,et al.  Carbon Accumulation Patterns During Post-Fire Succession in Cajander Larch (Larix cajanderi) Forests of Siberia , 2012, Ecosystems.

[15]  D. Frank,et al.  Complex climate controls on 20th century oak growth in Central-West Germany. , 2008, Tree physiology.

[16]  D. Schimel,et al.  Terrestrial ecosystems and the carbon cycle , 1995 .

[17]  E. Cook,et al.  Spatial Patterns of Tree-Growth Anomalies in the United States and Southeastern Canada , 1993 .

[18]  C. D. Keeling,et al.  Increased activity of northern vegetation inferred from atmospheric CO2 measurements , 1996, Nature.

[19]  S. Goetz,et al.  Tundra vegetation effects on pan-Arctic albedo Tundra vegetation effects on pan-Arctic albedo , 2011 .

[20]  P. Jones,et al.  Trees tell of past climates: But are they speaking less clearly today? , 1998 .

[21]  Logan T. Berner,et al.  A latitudinal gradient in tree growth response to climate warming in the Siberian taiga , 2011 .

[22]  R. Holmes.  Computer-Assisted Quality Control in Tree-Ring Dating and Measurement , 1983 .

[23]  S. Goetz,et al.  Tundra vegetation effects on pan-Arctic albedo , 2011 .

[24]  E. Cook,et al.  Tree-ring standardization and growth-trend estimation , 1990 .

[25]  Franco Biondi,et al.  COMPARING TREE‐RING CHRONOLOGIES AND REPEATED TIMBER INVENTORIES AS FOREST MONITORING TOOLS , 1999 .

[26]  J. Metsaranta,et al.  Using dendrochronology to obtain annual data for modelling stand development: a supplement to permanent sample plots , 2009 .

[27]  Steven D. Chandler.  Radioactive waste policy and legislation: 50 years on from the 1960 Act , 2011, Journal of radiological protection : official journal of the Society for Radiological Protection.

[28]  K. Briffa,et al.  Large-scale temperature inferences from tree rings: a review , 2004 .

[29]  S. Los,et al.  Correlation between maximum latewood density of annual tree rings and NDVI based estimates of forest productivity , 2000 .

[30]  C. Wirth,et al.  Reconciling Carbon-cycle Concepts, Terminology, and Methods , 2006, Ecosystems.

[31]  R. Macdonald,et al.  Sensitivity of the carbon cycle in the Arctic to climate change , 2009 .

[32]  L. Brubaker,et al.  Long‐Term Trends in Forest Net Primary Productivity: Cascade Mountains, Washington , 1989 .

[33]  E. Lévesque,et al.  Dynamics at the treeline: differential responses of Picea mariana and Larix laricina to climate change in eastern subarctic Québec , 2012 .

[34]  F. H. Schweingruber,et al.  Reduced sensitivity of recent tree-growth to temperature at high northern latitudes , 1998, Nature.

[35]  H. Fritts.  TREE-RING EVIDENCE FOR CLIMATIC CHANGES IN WESTERN NORTH AMERICA , 1964 .

[36]  A. Ditta.  How helpful is nanotechnology in agriculture? , 2012 .

[37]  Tommaso Anfodillo,et al.  Conifers in cold environments synchronize maximum growth rate of tree-ring formation with day length. , 2006, The New phytologist.

[38]  Ranga B. Myneni,et al.  The effect of growing season and summer greenness on northern forests , 2004 .

[39]  R. Houghton,et al.  Mapping Russian forest biomass with data from satellites and forest inventories , 2007 .

[40]  C. Tucker,et al.  Increased plant growth in the northern high latitudes from 1981 to 1991 , 1997, Nature.