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" American wet-climate trees give a similar record but with their maxima 1 to 3 years in advance of the solar maxima. It is possible to identify living trees giving this remarkable record and to ascertain the exact conditions under which they grow. "Practically... "
Journal of the American Statistical Association - Página 108
por American Statistical Association - 1924
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Plant Indicators: The Relation of Plant Communities to Process and Practice

Frederic Edward Clements - 1920 - 608 páginas
...living trees giving this remarkable record and to ascertain the exact conditions under which they grow. "Practically all the groups of trees investigated...region increases or the time of a tree record extends farther back ; this suggests the possibility of determining the climatic and vegetational reaction...
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Plant Indicators: The Relation of Plant Communities to Process and Practice

Frederic Edward Clements - 1920 - 590 páginas
...trees giving this remarkable record and to ascertain the exact conditions under which they grow. " Practically all the groups of trees investigated show...as the area of homogeneous region increases or the tune of a tree record extends farther back; this suggests the possibility of determining the climatic...
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Agricultural Gazette of Canada, Volumen7

Canada. Department of Agriculture - 1920 - 1074 páginas
...living trees giving this remarkable record and to ascertain the exact conditions under which they grow. Practically all the groups of trees investigated show...cycle becomes more certain and accurate as the area of homogenous region increases or the time of a tree record extends farther back; this suggests the possibility...
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Plant Indicators: The Relation of Plant Communities to Process and Practice

Frederic Edward Clements - 1920 - 606 páginas
...trees giving this remarkable record and to ascertain the exact conditions under which they grow. " Practically all the groups of trees investigated show...the solar cycle becomes more certain and accurate qs the area of homogeneous region increases or the time of a tree record extends farther back; this...
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Experiment Station Record, Volumen42

United States. Office of Experiment Stations - 1921 - 1172 páginas
...living trees giving this remarkable record аЫ to ascertain the exact conditions under which they grow. Practically all the groups of trees investigated show the sunspot cycle or Its multiples; the sohr cycle becomes more certain and accurate as the area of homogeneous regios Increases or the time...
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The Quarterly Journal of Economics, Volumen36

Charles Franklin Dunbar, Frank William Taussig, Abbott Payson Usher, Alvin Harvey Hansen, William Leonard Crum, Edward Chamberlin, Arthur Eli Monroe - 1922 - 774 páginas
...summary is the sun-spot cycle of 11.4 years. On page 85 he says : 4 We shall find that the sun spot cycle plays an important part in rainfall. And in...Practically all the groups of trees investigated show the sun spot cycle or its multiples; the solar cycle becomes more certain and accurate as the area of homogeneous...
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Plant Succession and Indicators: A Definitive Edition of Plant Succession ...

Frederic Edward Clements - 1928 - 570 páginas
...living trees giving this remarkable record and to ascertain the exact conditions under which they grow. "Practically all the groups of trees investigated...region increases or the time of a tree record extends farther back ; this suggests the possibility of determining the climatic and vegetational reaction...
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