326 REINERS 



64. I. S. Cornforth, Leaf-Fall in a Tropical Rain Forest, J. Appl. Ecol, 7: 603-608 (1970). 



65. T. Kira, H. Ogawa, K. Yoda, and K. Ogino, Comparative Ecological Studies on Three 

 Main Types of Forest Vegetation in Thailand. IV. Dry-Matter Production with Special 

 Reference to the Khao Chong Rain Forest, Nature Life Southeast Asia, 5: 149—174 

 (1967). 



66. H. T. Odum, Summary: An Emerging View of the Ecological System at El Verde, in A 

 Tropical Rain Forest, pp. 1-191 to 1-289, TID-24270, 1970. 



67. A. W. H. Damman, Effect of Vegetation Changes on the Fertility of a Newfoundland 

 Forest Site, Ecol. Monogr., 41: 253-270 (1971). 



68. S. B. Chapman, Nutrient Budgets for a Dry Heath Ecosystem in the South of England, J. 

 Ecol, 55: 677-689. 



69. S. B. Chapman, The Nutrient Content of the Soil and Root System of a Dry Heath 

 Ecosystem, J. Ecol, 58: 445-452 (1970). 



70. J. K. Egunjobi, Ecosystem Processes in a Stand of Ulex europaeus L., I. Dry-Matter 

 Production, Litterfall and Efficiency of Solar-Energy Utilization, J. Ecol, 59: 31-38 

 (1971). 



71. S. Old, Microclimates, Fire, and Plant Production in an Illinois Prairie, Ecol Monogr., 



39: 355-384(1969). 



72. R. T. Kuramoto and L. C. Bliss, Ecology of Subalpine Meadows in the Olympic 

 Mountains, Washington, Ecol. Monogr., 40: 317-347 (1970). 



73. P. L. Johnson and J.J. Kelley, Jr., Dynamics of Carbon Dioxide and Productivity in an 

 Artie Biosphere, Ecology, 51: 73-80 (1970). 



74. W. H. Rickard, Comparison of Annual Harvest Yields in an Arctic and a Semidesert 

 Plant Community, Ecology, 43: 770-771 (1962). 



75. R. M. Chew and A. E. Chew, The Primary Productivity of a Desert Shrub (Larrea 

 tridentata) Community, Ecol. Monogr., 35: 355—375 (1965). 



DISCUSSION BY ATTENDEES 



Livingstone: One cannot safely assume that the ratio of wood pulp to 

 lumber will be much higher in rich countries than in poor ones. The per capita 

 consumption of lumber goes up very rapidly with national wealth, although 

 there are some spectacular deviations from the general trend. Canada, for 

 example, uses more wood than its general standard of living would lead one to 

 expect. 



Richardson: As a comment tempering the suggestion that wood use 

 increases rapidly as a nation becomes richer, I would point out that wood is the 

 poor man's fuel, and as a nation becomes richer its wood consumption 

 diminishes. For a majority of the world's countries, the chief use for wood at 

 present is as fuel. 



