Nutrient leaching from leaf litter of emergent macrophyte (<i>Zizania latifolia</i>) and the effects of water temperature on the leaching process

Park, Sang-Kyu; Cho, Kang-Hyun

doi:10.1080/12265071.2003.9647718

Cited by 49 publications

(37 citation statements)

References 20 publications

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“…Several factors affected the leaching rates, including the experimental procedures (e.g. oven-dry, mesh size of litter bag), abrasion, and chemical composition of the detritus (Park and Cho, 2003). The period of leaching varied from the first 24 hours up to 15 days (Brum and Esteves, 2001;Albariño and Balseiro, 2002;Schlickeisen et al, 2003).…”

Section: Discussionmentioning

confidence: 99%

The fate of Eichhornia azurea (Sw.) Kunth. detritus within a tropical reservoir

Santino¹,

Bianchini²,

Okawa³

2010

Acta

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Aim: This study is aimed at comparing the kinetics of decomposition of Eichhornia azurea and discussing the fate of its detritus; Methods: The samples of aquatic macrophytes and water were collected in the Piraju Reservoir (São Paulo State, Brazil). The plant material was oven-dried and triturated and for each experimental condition (aerobic and anaerobic), 72 mineralization chambers were prepared with plant fragments and reservoir water. On sampling days the particulate and dissolved organic matter were quantified (on carbon basis POC and DOC, respectively); Results: The decomposition of E. azurea is more efficient under aerobic conditions, being 2.2 times faster than for the anaerobic process, according to the amount of mineralized carbon. For the decay of leaves, stems and roots of E. azurea the aerobic processes were 1.22-fold faster. It is assumed that the fractions responsible for the high oxygen consumption have reduced periods of half-time, and therefore do not accumulate in the ecosystems. Owing to the biomass of E. azurea in the Piraju Reservoir, the aerobic decay of E. azurea can promote moderate depletion in the dissolved oxygen budget. With the rate of the mineralization of refractory materials (≡ half-time varying from 385 to 462 days), the fibrous debris of this plant, i.e. refractory fractions, associated with the appropriate conditions of pH and oxi-reduction potential, can contribute to the gas production and storage of particulate organic matter in sediments.Keywords: decomposition, aquatic macrophytes, kinetic model, mineralization, Piraju Reservoir.Resumo: Objetivo: Nesse estudo foram comparadas as cinéticas de decomposição de Eichhornia azurea e discutidos os destinos de seus detritos; Métodos: As amostras de plantas e de água foram coletadas no reservatório de Piraju (Estado de São Paulo, Brasil). As plantas foram secas e trituradas; para cada condição experimental (meio aeróbio e anaeróbio) foram preparadas 72 câmaras de mineralização com fragmentos de planta e água do reservatório. Nos dias de coleta as frações particuladas e dissolvidas de matéria orgânica foram quantificadas (em base de carbono: carbono orgânico particulado (COP) e dissolvido (COD), respectivamente); Resultados: Com base no carbono mineralizado, os resultados indicaram que a decomposição de E. azurea foi mais eficiente em meio aeróbio (2,2 vezes mais rápido) que em anaerobiose. Para a decomposição das folhas, talos e raízes os processos aeróbios foram 1,22 vezes mais rápidos. Verificou-se que as frações responsáveis pelos consumos elevados de oxigênio possuem tempos de meia vida reduzidos e, desse modo, não se acumulam no reservatório. Devido à biomassa de E. azurea no reservatório de Piraju os processos aeróbios de decomposição dessa espécie podem promover depleções moderadas no balanço de oxigênio dissolvido. Devido à magnitude dos coeficientes de degradação (meia-vida: de 385 a 462 dias), associados com as condições predominantes de pH e potencial de oxi-redução, as frações refratárias dos detritos (fibras...

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Section: Discussionmentioning

confidence: 99%

The fate of Eichhornia azurea (Sw.) Kunth. detritus within a tropical reservoir

Santino¹,

Bianchini²,

Okawa³

2010

Acta

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“…leaching and decomposition of litter (Marschner 1995;Kimmins 2004;Mahmood et al 2009;Hossain et al 2011) which also improves the soil quality (Ngoran et al 2006;Mahmood et al 2009;Mahmood et al 2010;Traidiati et al 2011). Leaf litter is the main and quick source of organic matter and nutrient to the soil compared to other parts of litter which is available through the process of decomposition (Mason 1977;Park and Cho 2003;Hossain et al 2011). The amount of nutrient addition varies from species to species (Marschner 1995;Jones 1998;Hasanuzzaman et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Nutrient Leaching from Leaf Litter of Cropland Agroforest Tree Species of Bangladesh

Hasanuzzaman¹,

Hossain²

2014

Journal of Forest and Environmental Science

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Leaf litter is the main and quick source of organic matter and nutrient to the soil compared to other parts of litter.This study focused on the nutrients (N, P and K) leaching from leaf litter of Melia azadirachta, Azadirachta indica, Eucalyptus camaldulensis, Swietenia macrophylla, Mangifera indica, Zizyphus jujuba, Litchi chinensis, Albizia saman, Artocarpus heterophyllus, Acacia auriculiformis, Dalbergia sissoo and Khaya anthotheca as the common cropland agroforest tree species of Bangladesh. About (9 to 35) % of initial mass was lost, while Electric Conductivity (EC) and TDS (Total Dissolved Solid) of leaching water increased to (573 to 3,247) μS/cm and (401 to 2,307) mg/l respectively after 192 hours of leaching process. Mass loss (%) of leaf litter, EC and TDS of leaching water showed significant (ANOVA, p＜0.05) curvilinear relationship with leaching time. Initial concentration of NH4, PO4 and K in leaching water was found to increase significantly (p＜0.05) up to 48/72 hours and then remained almost constant at later stages (48/72 to 192 hours). Mass loss of leaves; EC, TDS, NH4, PO4 and K in leaching water was varied also significantly (ANOVA, p＜0.05) among the studied tree species. All the tree species showed similar pattern of nutrients (K＞N＞P) release during the leaching process. The highest NH4 (4,097 ppm) and potassium (8,904 ppm) concentration was found for M. azadirachta while the highest PO4 (1,331 ppm) concentration was found for E. camaldulensis in the leaching water. Among the studied tree species, M. azadirachta, A. indica, D. sissoo, E. camaldulensis and Z. jujuba was selected as the best tree species with respect to nutrient leaching.

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“…Litter improves soil quality through adding the organic matter and nutrients to the soil [15][16][17]. Leaf litter is the main and fastest source of organic matter and nutrient to the soil compared to other litter types [6,18,19]. The nutrients in litter were added to the soil through microbial decomposition and physical leaching of soluble components followed by microbial oxidation of refractory components [18,[20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Leaf Litter Decomposition and Nutrient Dynamics Associated with Common Horticultural Cropland Agroforest Tree Species of Bangladesh

Hasanuzzaman

Hossain

2014

International Journal of Forestry Research

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Mangifera indica, Zizyphus jujuba, Litchi chinensis, andArtocarpus heterophyllus are the most common cropland agroforest horticultural tree species of Bangladesh. This study focused on leaf litter decomposition and nutrient (N, P, and K) dynamics during the decomposition process. This experiment was conducted for 180 days by using litter bag technique during dry and wet seasons. Mass loss was the highest (49% and 57%) for A. heterophyllus and the lowest (25%) was found for L. chinensis. The highest initial rates (0.75% and 2.35%/day) of decomposition were observed for Z. jujuba and the lowest (0.50% and 0.79%/day) for L. chinensis. The highest decay constant was observed for A. heterophyllus (2.14 and 2.34) and the lowest (0.88 and 0.94) for L. chinensis. Leaf litter of all the studied species showed a similar pattern (K > N > P) of nutrient release during the decomposition process. Zizyphus jujuba showed comparatively higher return of N, P, and K than others. However, a significant (P < 0.05) higher amount of mass loss, rate of decomposition, decay constant, and amount of nutrient return from leaf litter were observed during the wet season.

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Nutrient leaching from leaf litter of emergent macrophyte (Zizania latifolia) and the effects of water temperature on the leaching process

Cited by 49 publications

References 20 publications

The fate of Eichhornia azurea (Sw.) Kunth. detritus within a tropical reservoir

The fate of Eichhornia azurea (Sw.) Kunth. detritus within a tropical reservoir

Nutrient Leaching from Leaf Litter of Cropland Agroforest Tree Species of Bangladesh

Leaf Litter Decomposition and Nutrient Dynamics Associated with Common Horticultural Cropland Agroforest Tree Species of Bangladesh

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