ISSN:
1573-5036
Keywords:
Humid tropics
;
Krasnozem
;
Pinus massoniana
;
Plant indicator
;
Red yellow podzol
;
Soil acidity
;
Soil fertility
;
South China
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary Consisting ofPinus massoniana, Rhodomyrtus tomentosa, Baeckea frutescens andDicranopteris linearis, thePinus scrub community is widespread and representative of the vegetation in Hong Kong. Three areas, with soils derived separately from granite, sedimentary and volcanic rocks but of the same pine community were selected for the present study. Soil samples were collected and analysed for pH, texture, organic carbon, total nitrogen, cation exchange capacity, and exchangeable K, Na, Ca, Mg, Fe, Mn, Al and H. Plant samples were also collected for the analysis of K, Na, Ca, Mg, Mn, Al, Fe and SiO2. While variations in chemical and physical properties exist among the soils of different geology, they are invariably acidic with high exchangeable Al and H ions whereas the base saturation is exceedingly low. Intra- and inter-species variations in chemical composition are equally notable. While K, Mg and Ca are the dominant elements of uptake and accumulation, the fernD. linearis also stands out as a strong accumulator of SiO2, Al and to some extent, Mn and Fe.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02205853
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