Foliage area and architecture of plant canopies from sunfleck size distributions
作者： J.M. Chen , T.A. Black
DOI: 10.1016/0168-1923(92)90040-B
关键词:
摘要: Abstract A Poisson model is developed to describe sunfleck or gap size distributions beneath clumped plant canopies. This based on the assumption that foliage clumps are randomly distributed in space and elements within each clump. Using this model, clumping index, leaf area index ( L ), clump element clump, widths were successfully derived for two artificial canopies a thinned pruned Douglas-fir forest stand. It shown existing theories deriving from measurements of canopy fraction have limitations, use architectural information distribution can substantially improve technique indirectly measuring
eurekamag.com
harvard.edu
elsevier.com
utoronto.ca 参考文章(16)
Brian Wichmann, David Hill, None, Building a random-number generator BYTE archive. ,vol. 12, pp. 127- 128 ,(1987)
JB Miller, A formula for average foliage density Australian Journal of Botany. ,vol. 15, pp. 141- 144 ,(1967) , 10.1071/BT9670141
A.R.G. Lang, Application of some of Cauchy's theorems to estimation of surface areas of leaves, needles and branches of plants, and light transmittance Agricultural and Forest Meteorology. ,vol. 55, pp. 191- 212 ,(1991) , 10.1016/0168-1923(91)90062-U
J.M. Chen, T.A. Black, Measuring leaf area index of plant canopies with branch architecture Agricultural and Forest Meteorology. ,vol. 57, pp. 1- 12 ,(1991) , 10.1016/0168-1923(91)90074-Z
A Lang, Estimation of leaf area index from transmission of direct sunlight in discontinuous canopies Agricultural and Forest Meteorology. ,vol. 37, pp. 229- 243 ,(1986) , 10.1016/0168-1923(86)90033-X
J. M. Norman, E. E. Miller, C. B. Tanner, Light Intensity and Sunfleck-size Distributions in Plant Canopies1 Agronomy Journal. ,vol. 63, pp. 743- 748 ,(1971) , 10.2134/AGRONJ1971.00021962006300050026X
T. Nilson, A theoretical analysis of the frequency of gaps in plant stands Agricultural Meteorology. ,vol. 8, pp. 25- 38 ,(1971) , 10.1016/0002-1571(71)90092-6
H.H. Neumann, G. Den Hartog, R.H. Shaw, Leaf area measurements based on hemispheric photographs and leaf-litter collection in a deciduous forest during autumn leaf-fall Agricultural and Forest Meteorology. ,vol. 45, pp. 325- 345 ,(1989) , 10.1016/0168-1923(89)90052-X
E. E. Miller, J. M. Norman, A Sunfleck Theory for Plant Canopies I. Lengths of Sunlit Segments along a Transect1 Agronomy Journal. ,vol. 63, pp. 735- 738 ,(1971) , 10.2134/AGRONJ1971.00021962006300050024X
Jon M. Welles, Some indirect methods of estimating canopy structure Remote Sensing Reviews. ,vol. 5, pp. 31- 43 ,(1990) , 10.1080/02757259009532120