Abstract
Studies of nutrient cycling of tropical forests should differentiate between dynamic stages of the forest. We studied the nutrient concentration (N, P, K, Ca and Mg) and phytomass of aboveground (living and non living parts) and belowground compartments (soil) in four dynamic stages, namely Building (Bl and B2), and Mature (Ml and M2) stages, for a lowland rain forest. Nutrient concentrations in various compartments differed between the dynamic stages. Bark contains higher nutrient concentration than wood parts, both in stems and branches. Leaves contain higher nutrient concentration than wood parts, both in litterfall and litter. The concentration of K in throughfall is the highest, Ca and Mg perform similar value. Throughfall exhibits lower nutrient concentration than open area rain water. The nutrient concentration of 10-20 cm is higher than in the 0-10 cm soil depth. The phytomass values are highly variable among tree parts, diameter classes and dynamic stages. The phytomass is generally the highest in M2 and significantly different from Bl , Ml and B2. The phytomass of leaves in litterfall and litter is higher than wood parts. More litterfall and litter are accumulated in mature than building phases. Key words : nutrient / phytomass / dynamics / rain / forest
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Claims 10
Claim · model-written summary
Nutrient concentrations in compartments differed by forest dynamic stage.
Not reportedTaxon
Verbatim
e0“Nutrient concentrations in various compartments differed between the dynamic stages.”
t0“LOWLAND RAIN FOREST”
Claim · model-written summary
Bark had higher nutrient concentration than wood in stems and branches.
Not reportedTaxon
Verbatim
e0“Bark contains higher nutrient concentration than wood parts, both in stems and branches.”
t0“LOWLAND RAIN FOREST”
Claim · model-written summary
Leaves had higher nutrient concentration than wood in litterfall and litter.
Not reportedTaxon
Verbatim
e0“Leaves contain higher nutrient concentration than wood parts, both in litterfall and litter.”
t0“LOWLAND RAIN FOREST”
Claim · model-written summary
Potassium concentration in throughfall was highest.
Not reportedTaxon
Verbatim
e0“The concentration of K in throughfall is the highest, Ca and Mg perform similar value.”
t0“LOWLAND RAIN FOREST”
Claim · model-written summary
Calcium and magnesium in throughfall had similar values.
Not reportedTaxon
Verbatim
e0“The concentration of K in throughfall is the highest, Ca and Mg perform similar value.”
t0“LOWLAND RAIN FOREST”
Claim · model-written summary
Throughfall nutrient concentration was lower than open-area rain water.
Not reportedTaxon
Verbatim
e0“Throughfall exhibits lower nutrient concentration than open area rain water.”
t0“LOWLAND RAIN FOREST”
Claim · model-written summary
Forest phytomass varied among tree parts, diameter classes and stages.
Not reportedTaxon
Verbatim
e0“The phytomass values are highly variable among tree parts, diameter classes and dynamic stages.”
t0“LOWLAND RAIN FOREST”
Claim · model-written summary
Phytomass was generally highest in M2 and significantly different from other stages.
Not reportedTaxon
Verbatim
e0“The phytomass is generally the highest in M2 and significantly different from Bl , Ml and B2.”
t0“LOWLAND RAIN FOREST”
Claim · model-written summary
Leaf phytomass in litterfall and litter exceeded wood phytomass.
Not reportedTaxon
Verbatim
e0“The phytomass of leaves in litterfall and litter is higher than wood parts.”
t0“LOWLAND RAIN FOREST”
Claim · model-written summary
Mature phases accumulated more litterfall and litter than building phases.
Not reportedTaxon
Verbatim
e0“More litterfall and litter are accumulated in mature than building phases.”
t0“LOWLAND RAIN FOREST”