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Seasonal Effects on Litterfall in a Hong Kong Mixed Forest
Paul K. S. Lam and David Dudgeon
Journal of Tropical Ecology
Vol. 1, No. 1 (Feb., 1985), pp. 55-64
Published by: Cambridge University Press
Stable URL: http://www.jstor.org/stable/2559714
Page Count: 10
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An investigation of seasonal rates of litter production in a mixed forest, Hong Kong Island, was undertaken from October 1982 to January 1984. Total annual litterfall amounted to 1218.96 g m-2 yr-1, comprising 68.6% leaves, 18.9% woody material, and 12.5% fruits, seeds and insect frass. 398.70 g m-2 of litter was recorded immediately after a severe typhoon (9 September 1983). Rates of leaf-fall and organic debris production were correlated with prevailing temperature and rainfall. Leaf-fall peaked in January 1983, March to July 1983, and in September 1983 after the typhoon, while large amounts of insect faeces were collected in May and June. Woody litter production rates were correlated with temperature and rainfall recorded in previous months. Woody litterfall exhibited no obvious periodicity but was slightly increased during March and April. The seasonal distribution of litterfall is discussed in relation to climatic factors and habitat nutrient economy.
Journal of Tropical Ecology © 1985 Cambridge University Press