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Seasonal effects on litterfall in a Hong Kong mixed forest

Published online by Cambridge University Press:  10 July 2009

Paul K. S. Lam  and
David Dudgeon
Paul K. S. Lam
Affiliation:
Department of Zoology, University of Hong Kong, Hong Kong
David Dudgeon
Affiliation:
Department of Zoology, University of Hong Kong, Hong Kong
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Abstract

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.

Keywords

Hong Konglitterfallphenologyseasonal effectssubtropical forest
Type
Research Article
Information
Journal of Tropical Ecology , Volume 1 , Issue 1 , February 1985 , pp. 55 - 64
Copyright
Copyright © Cambridge University Press 1985

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