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Waste Management & Research, Vol. 10, No. 5, 423-434 (1992)
DOI: 10.1177/0734242X9201000505

Factors Related To the Diversity and Distribution of Soil Fauna On Gin Drinkers' Bay Landfill, Hong Kong

M.H. Wong

Department of Biology, The Hong Kong Baptist College, Kowloon, Hong Kong

K.C. Cheung

Department of Biology, The Hong Kong Baptist College, Kowloon, Hong Kong

C.Y. Lan

Institute of Environmental Studies, Zhong Shen University, Kwangchau, China

The major potential problems from a landfill are biogas and leachate generated from the wastes deposited. These factors can also exert harmful effects on the growth of vegetation and influence the diversity and distribution of soil animals, either directly or indirectly. This paper describes investigations undertaken at the completed Gin Drinkers' Bay landfill, Hong Kong. The absence of plant cover at the site limited the occurrence of some common soil animals such has Diplopoda, Hemiptera, Isopoda and Isoptera. This was possibly due to the shortage of plants as shelter and the lack of organic matter as food. One area (site H), with a high level of landfill gas in the soil zone, had a lower diversity of soil animals than another area (site L) with a lower level of landfill gas. Some edaphic factors such as moisture content and concentrations of K, Na and Mg in the "contaminated" site H may also have resulted in lower numbers of species and individuals.

Key Words: Soil fauna • sanitary landfill • vegetation • landfill gas • soil properties • Hong Kong.


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