Acidification of tropical forest soils derived from serpentine and sedimentary rocks in East Kalimantan, Indonesia

Fujii, Kazumichi; Hartono, Arief; Funakawa, Shinya; Uemura, Mari; Sukartiningsih,; Kosaki, Takashi

doi:10.1016/j.geoderma.2010.09.027

Cited by 29 publications

(21 citation statements)

References 40 publications

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“…In the present work, the soils were extremely acidic (pH 3.6-4.5) in all forest fragments, caused by high aluminum saturation and low basic cations, as typically observed in different tropical forests (Stevens et al 2009, Fujii et al 2011, Whittinghill & Hobbie 2012. However, the forest soils near the industrial complex (Paulínia and Americana) were more acidic (pH = 3.6-3.9) than those located farther apart from industries near rural or urban sources (pH = 4.0-4.5), indicating that acidic deposition increases near the industrial area.…”

Section: Discussionsupporting

confidence: 58%

Soil chemical and physical status in semideciduous Atlantic Forest fragments affected by atmospheric deposition in central-eastern São Paulo State, Brazil

Lopes¹,

Santos²,

Camargo³

et al. 2015

iForest

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© iForest -Biogeosciences and Forestry IntroductionThe Brazilian Atlantic biome is recognized as one of the hotspots for the conservation of biodiversity (Forzza et al. 2012), though it is severely affected by diverse human interferences, particularly in the State of São Paulo, southeastern Brazil (Domingos et al. 2003). The semideciduous Atlantic Forest is highly fragmented in central-eastern São Paulo because of the expansion of agriculture and urban and industrial growth (Nalon et al. 2008). Besides the reduction of forest cover, human activities bring about a variety of pollutants from combustion of fuels, waste disposal, long-term sewage sludge and fertilizer application and other sources, which may be toxic to the plant community and modify the chemical status of soil, depending on its original chemical and physical conditions (Nriagu 1990, Sharpley 1995, Schaaf et al. 2004, Pouyat et al. 2008, Lucas et al. 2011. Soil nutrients are among the main factors that regulate plant growth and play an important role in the sustainable use of soils; however, their excess due to pollution from human sources may damage the soils and affect the soil-plant relationships. Air pollution may also disrupt other nutrient cycling processes in natural ecosystems, such as the decomposition of litter (Cotrufo et al. 1995).Most anthropogenic pollutants deposited in forest ecosystems accumulate in the soil surface layers (Ruan et al. 2008), where pollutants are typically immobilized for long periods (Hawkins et al. 1995, Verstraeten et al. 2012. However, these accumulations are considered a "chemical time bomb" (Kabala & Szerszen 2002, Hovmand et al. 2008, because pollutants will eventually be leached into waterways (Miller & Friedland 1994).Increased deposition of sulfur and nitrogen compounds (SO2, NOx and NH3) in natural communities induces soil acidification (Falkengren-Grerup & Tyler 1993, Akselsson et al. 2013, Gao et al. 2013. Soil acidification depletes the basic nutrient cations, causes a decrease of pH, lowers the quality of humus, and accelerates the mobilization of aluminum (Boruvka et al. 2005, Miller & Watmough 2009). The depletion of basic cations from the forest floor alters the mineral nutrition of trees, modifies tree growth patterns (Klumpp et al. 2002, Högberg et al. 2006, Sebesta et al. 2011) and affects the distribution of roots (Joslin & Wolfe 1992). As a consequence, biodiversity, vegetation productivity and dynamics of the soil carbon pool are affected (Binkley et al. 2000).Altogether, such negative effects contribute to the forest decline observed in the Atlantic Rain Forest on the coastal mountain range named Serra do Mar (region of Cubatão, São Paulo State, Brazil). This forest is affected by air pollution from an industrial complex that caused destabilization of the land surface, disturbance of soil processes and landslides (Leitão Filho et al. 1993, Mayer et al. 2000a, 2000b. Furthermore, the large metropolitan regions of the São Paulo State (SE Brazil) are responsible for the intense fragmentation of...

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Section: Discussionsupporting

confidence: 58%

Soil chemical and physical status in semideciduous Atlantic Forest fragments affected by atmospheric deposition in central-eastern São Paulo State, Brazil

Lopes¹,

Santos²,

Camargo³

et al. 2015

iForest

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“…The cation demands of plants in tropical forests are generally greater than in temperate forests due to the greater primary productivity in tropical forests (Fujii et al 2010). Excess cation uptake by tropical plants therefore leads to high rates of soil acidification in tropical forests (Fujii 2014).…”

Section: àmentioning

confidence: 99%

“…The chelating organic acids (e.g., citric acid) released by microorganisms (and/or reducing condition) contributes to the destruction of clays, leaching of Al and Fe from upper soil horizons, and their accumulation (illuviation) in the subsoil. This is the process that leads to the development of podzols (Spodosols in Soil Taxonomy) under temperate conif- Data sources include four sites of acidic soil (pH 4.0-5.3) and two sites of less acidic soil (pH 5.6-6.3) (Fujii et al 2010(Fujii et al , 2011. Soil depth to 30 cm was counted erous forests, but weak podzolization is also involved in the formation of Ultisols in tropical forests (Do Nascimento et al 2004.…”

Section: àmentioning

confidence: 99%

Plant–soil interactions maintain biodiversity and functions of tropical forest ecosystems

Fujii

Shibata

Kitajima

et al. 2017

Ecological Research

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117

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Tropical forests are characterized by high biodiversity and aboveground biomass growing on strongly weathered soils. However, the distribution of plant species and soils are highly variable even within a tropical region. This paper reviews existing and novel knowledge on soil genesis, plant and microbial physiology, and biogeochemistry. Typically, forests in Southeast Asia are dominated by dipterocarps growing on acidic Ultisols from relatively young parent material. In the Neotropics and Africa, forests contain abundant legume trees growing on Oxisols developed in the older parent materials on stable continental shields. In Southeast Asia, the removal of base cations from the surface soil due to leaching and uptake by dipterocarp trees result in intensive acidification and accumulation of exchangeable Al 3+ , which is toxic to most plants. Nutrient mining by ectomycorrhizal fungi and efficient allocation within tree organs can supply phosphorus (P) for reproduction (e.g., mast fruiting) even on P-limited soils. In the Neotropics and Africa, nitrogen (N) fixation by legume trees can ameliorate N or P limitation but excess N can promote acidification through nitrification. Biological weathering [e.g., plant silicon (Si) cycling] and leaching can lead to loss of Si from soil. The resulting accumulation of Al and Fe oxides in Oxisols that can reduce P solubility through sorption and lead to limitation of P relative to N. Thus, geographical variation in geology and plant species drives patterns of soil weathering and niche differentiation at the global scale in tropical forests.

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“…The soils are classified as Andisols (NG), Spodosols (TG) and Inceptisols (KT) (Soil Survey Staff 2006). The features of these sites and their soil properties are described in detail in Fujii et al (2010) and Fujii et al (2011).…”

Section: Site Descriptionmentioning

confidence: 99%

“…The soil pH varied from 4.0 to 6.3 for tropical soils and 3.8 to 4.6 for temperate soils, depending on parent materials and climates (Fujii et al 2008(Fujii et al , 2011. The microbial biomass-C varied from 29 AE 3 mg C kg À1 (mean AE SE) at BB to 259 AE 12 mg C kg À1 at RP.…”

Section: Physicochemical Properties Of Soilsmentioning

confidence: 99%

Biodegradation kinetics of monosaccharides and their contribution to basal respiration in tropical forest soils

Hayakawa

Fujii

Funakawa

et al. 2011

Soil Science and Plant Nutrition

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Low molecular weight (LMW) organic compounds in soil solution are easily biodegradable and could fuel respiration by soil microorganisms. Our main aim was to study the mineralization kinetics of monosaccharides using 14 C-radiolabelled glucose. Based on these data and the soil solution concentrations of monosaccharides, we evaluated the contribution of monosaccharides to basal respiration for a variety of tropical forest soils. Further, the factors controlling the mineralization kinetics of monosaccharides were examined by comparing tropical and temperate forest soils. Monosaccharides comprised on average 5.2 to 47.7% of dissolved organic carbon in soil solution. Their kinetic parameters (V max and K M ), which were described by a single MichaelisMenten equation, varied widely from 11 to 152 nmol g À1 h À1 and 198 to 1294 mmol L À1 for tropical soils, and from 182 to 400 nmol g À1 h À1 and 1277 to 3150 mmol L À1 for temperate soils, respectively. The values of V max increased with increasing microbial biomass-C in tropical and temperate soils, while the K M values had no correlations with soil biological or physicochemical properties. The positive correlation between V max values and microbial biomass-C indicates that microbial biomass-C is an essential factor to regulate the V max values in tropical and temperate forest soils. The biodegradation kinetics of monosaccharides indicate that the microbial capacity of monosaccharide mineralization far exceeds its rate at soil solution concentration. Monosaccharides in soil solution are rapidly mineralized, and their mean residence times in this study were very short (0.4-1.9 h) in tropical forests. The rates of monosaccharide mineralization at actual soil solution concentrations made up 22-118% of basal respiration. Probably because of the rapid and continuous production and consumption of monosaccharides, monosaccharide mineralization is shown to be a dominant fraction of basal respiration in tropical forest soils, as well as in temperate and boreal forest soils.

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Acidification of tropical forest soils derived from serpentine and sedimentary rocks in East Kalimantan, Indonesia

Cited by 29 publications

References 40 publications

Soil chemical and physical status in semideciduous Atlantic Forest fragments affected by atmospheric deposition in central-eastern São Paulo State, Brazil

Soil chemical and physical status in semideciduous Atlantic Forest fragments affected by atmospheric deposition in central-eastern São Paulo State, Brazil

Plant–soil interactions maintain biodiversity and functions of tropical forest ecosystems

Biodegradation kinetics of monosaccharides and their contribution to basal respiration in tropical forest soils

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