Soils of rainforests Characterization and major constraints of dominant forest soils in the humid tropics

Kauffman, S.; Sombroek, W.G.; Mantel, S.

doi:10.1007/978-3-662-03649-5_1

Cited by 41 publications

(22 citation statements)

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“…The TOC and TN contents and the C/N ratios are also similar for both soils (Tables 3 and 4), and are comparable to values measured in pristine forest soils in the East Kalimantan Province, Indonesia (Fujii et al, 2009), humid tropical primary forest soils in Sumatra (van Noordwijk et al, 1997), and ferralitic soils under tropical rainforest originate from different countries around the world like Brazil, Indonesia, Zaire, … (Kauffman et al, 1998). Several inferences can be made from these results:…”

Section: Production and Evolution Of Som In Volcanic Tropical Soilssupporting

confidence: 76%

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Sources of dissolved organic carbon in small volcanic mountainous tropical rivers, examples from Guadeloupe (French West Indies)

et al. 2016

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Section: Production and Evolution Of Som In Volcanic Tropical Soilssupporting

confidence: 76%

“…-The low C/N ratios of the two Guadeloupean soils indicate a high degree of decomposition (Kauffman et al, 1998). …”

Section: Production and Evolution Of Som In Volcanic Tropical Soilsmentioning

confidence: 99%

Sources of dissolved organic carbon in small volcanic mountainous tropical rivers, examples from Guadeloupe (French West Indies)

et al. 2016

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“…There are six major forest soil groups in humid tropics, but on landforms suitable for short rotation tree crops, the majority of the soils are classified as Acrisols, Ferralsols, or Podzols in the World Reference Base for Soil Resources (Kauffman et al 1998). The major soil groups available for plantation forestry are characterised by low amounts of weatherable minerals, low cation exchange capacity, low to very low base saturation, and high levels of exchangeable aluminum (Lal 1997;Gonçalves et al 1997).…”

Section: Soil and Biophysical Constraintsmentioning

confidence: 99%

“…The Acrisols and Ferralsols are well or moderately well drained, and usage for perennial crops may be severely limited by low available water during part of the year. Organic carbon contents range from 1% to 2% in the surface 20 cm and 0.5% at 100 cm (Kauffman et al 1998). The most critical accumulations of organic matter are in the litter layer which is crucial for maintaining nutrient supply, water retention, and structural stability.…”

Section: Soil and Biophysical Constraintsmentioning

confidence: 99%

Site management and productivity in tropical forest plantations

Tiarks¹,

Nambiar²,

Cossalter³

1998

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“…The occurrence of EPF in soil is influenced by soil physico-chemical properties such as pH, organic matter, carbon/nitrogen ratio and cropping systems (Asensio et al, 2003;Quesada-Moraga et al, 2007;Oddsdóttir et al, 2010). Organic carbon and nitrogen are two important components to measure soil fertility and microbial activity (Kauffman et al, 1998).…”

Section: Introductionmentioning

confidence: 99%

The Occurrence of Entomopathogenic Fungi on Mineral and Peat Soils in Peninsular Malaysia

Kin¹,

Azmi²,

Kamarudin³

et al. 2017

American Journal of Agricultural and Biological Sciences

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The aims of this study are to isolate and identify Entomopathogenic Fungi (EPF) from mineral and peat soils in relation with the soil physico-chemical parameters. The mineral soil was sampled from the MPOB Research Station Hulu Paka in Terengganu, whereas peat soil was sampled from the MPOB Research Station Teluk Intan in Perak. Isolation of these fungi was carried out using a selective medium. Morphological characteristics of fungi were studied by observing the mycelium and conidia grown on agar plates using a light microscope. Soil physico-chemical parameters such as pH, water content, carbon and nitrogen content were also determined. Two species of EPF isolated from both types of soils were identified as Isaria amoenerosea and Metarhizium anisopliae. On potato dextrose agar, the colony of I. amoenerosea was pink in colour and slow growing with floccose mycelium which producing conidiophores with 3 to 4 phialides. The conidia were subglobose or irregular shapes between 2.0-3.0 µm long × 1.7-2.0 µm wide. The colony of M. anisopliae was whitish yellow and turned to dark green when matured; slow growing with floccose mycelium. The conidia were cylindrical with the dimension ranging from 6.0-7.0 µm long × 2.0-2.8 µm wide. The result shows that the occurrence of I. amoenerosea was more dominant than M. anisopliae. In mineral soil, out of 30 samples, I. amoenerosea was isolated from 25 soil samples (83%), while the M. anisopliae was only found in 15 samples (50%). In peat soil, out of 36 samples collected, 26 samples (72%) were found with I. amoenerosea, while the fungus M. anisopliae was isolated from eight samples (22%). In this study, the occurrence of EPF on mineral soil was higher than from peat soil, which was possibly due to low water content, high soil temperature and low C/N ratio.

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Soils of rainforests Characterization and major constraints of dominant forest soils in the humid tropics

Cited by 41 publications

References 1 publication

Sources of dissolved organic carbon in small volcanic mountainous tropical rivers, examples from Guadeloupe (French West Indies)

Sources of dissolved organic carbon in small volcanic mountainous tropical rivers, examples from Guadeloupe (French West Indies)

Site management and productivity in tropical forest plantations

The Occurrence of Entomopathogenic Fungi on Mineral and Peat Soils in Peninsular Malaysia

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