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10.1093/aob/mct310 http://scihub22266oqcxt.onion/10.1093/aob/mct310 C4156115!4156115 !24431344     free     free     free Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\24431344 .jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117       Ann+Bot 2014 ; 114 (4 ): 689-94 Nephropedia Template TP {{tp|p=24431344 |t=2014. Quantitative characterization of clumping in Scots pine crowns |pdf=|usr=}}{{24431344 }} gab.com Text Quantitative characterization of clumping in Scots pine crowns JO: Ann Bot http://www.kidney.de/pget.php?&tw=1&pmid=24431344 #FOAvip BACKGROUND AND AIMS: Proper characterization of the clumped structure of forests is needed for calculation of the absorbed radiation and photosynthetic production by a canopy. This study examined the dependency of crown-level clumping on tree size and growth conditions in Scots pine (Pinus sylvestris), and determined the ability of statistical canopy radiation models to quantify the degree of self-shading within crowns as a result of the clumping effect. METHODS: Twelve 3-D Scots pine trees were generated using an application of the LIGNUM model, and the crown-level clumping as quantified by the crown silhouette to total needle area ratio (STAR(crown)) was calculated. The results were compared with those produced by the stochastic approach of modelling tree crowns as geometric shapes filled with a random medium. KEY RESULTS: Crown clumping was independent of tree height, needle area and growth conditions. The results supported the capability of the stochastic approach in characterizing clumping in crowns given that the outer shell of the tree crown is well represented. CONCLUSIONS: Variation in the whole-stand clumping index is induced by differences in the spatial pattern of trees as a function of, for example, stand age rather than by changes in the degree of self-shading within individual crowns as they grow bigger. Twit Text FOAVip Quantitative characterization of clumping in Scots pine crowns ????Ann Bot http://www.kidney.de/pget.php?&tw=1&pmid=24431344 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=24431344 #FOAvip English Wikipedia <ref>{{Cite pmid|24431344 }}</ref> Quantitative characterization of clumping in Scots pine crowns #MMPMID24431344 Stenberg P ; Mõttus M ; Rautiainen M ; Sievänen R Ann Bot 2014[Sep]; 114 (4 ): 689-94 PMID24431344 show ga BACKGROUND AND AIMS: Proper characterization of the clumped structure of forests is needed for calculation of the absorbed radiation and photosynthetic production by a canopy. This study examined the dependency of crown-level clumping on tree size and growth conditions in Scots pine (Pinus sylvestris), and determined the ability of statistical canopy radiation models to quantify the degree of self-shading within crowns as a result of the clumping effect. METHODS: Twelve 3-D Scots pine trees were generated using an application of the LIGNUM model, and the crown-level clumping as quantified by the crown silhouette to total needle area ratio (STAR(crown)) was calculated. The results were compared with those produced by the stochastic approach of modelling tree crowns as geometric shapes filled with a random medium. KEY RESULTS: Crown clumping was independent of tree height, needle area and growth conditions. The results supported the capability of the stochastic approach in characterizing clumping in crowns given that the outer shell of the tree crown is well represented. CONCLUSIONS: Variation in the whole-stand clumping index is induced by differences in the spatial pattern of trees as a function of, for example, stand age rather than by changes in the degree of self-shading within individual crowns as they grow bigger. |*Models, Biological [MESH] |Biomass [MESH] |Photosynthesis/radiation effects [MESH] |Pinus sylvestris/*anatomy & histology/growth & development/radiation effects [MESH] |Plant Leaves/*anatomy & histology/growth & development/radiation effects [MESH]Quantitative characterization of clumping in Scots pine crowns (epmc).pdf DeepDyve Pubget Overpricing