Changes in organic compounds during leaf litter leaching: laboratory experiment on eight plant species of the Sudano-guinea Savannas of Ngaoundere, Cameroon

Adamou, Ibrahima; Biyanzi, P.; Halima, M.

doi:10.3832/ifor0450-0010027

Cited by 32 publications

(45 citation statements)

References 15 publications

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“…3, and Fig. 4) (Nykvist 1963, Taylor & Parkinson 1988, Saini 1989, Ibrahima et al 1995. Moreover, the higher rate of mass loss also emphasizes the potentiality of species to provide readily available organic and inor ganic compounds for microbiota (Wetzel 1995).…”

Section: Discussionmentioning

confidence: 98%

Nutrients (N, P and K) dynamics associated with the leaf litter of two agroforestry tree species of Bangladesh

Mahmood¹,

Limon²,

Rahman³

et al. 2009

iForest

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© iForest -Biogeosciences and Forestry IntroductionChemical fertilizer is now commonly used in agricultural practices, but it becomes ex pensive and farmers are reducing its use due to negative environmental impacts (Good et al. 2004). In addition, access to fertilizer in developing nations is limited (Sanchez 2002). It is an important task to gain a better understanding how agricultural practices can be designed with low input of fertilizer. Maintenance of soil productivity is a critical issue in a tropical agroecosystems. Agro forestry practice is an important component of it. Tropical farmers use this practice for their dependence on organic residues as low cost and readily available nutrients for soil fertility management (Nair 1989, Kwabiah et al. 2001. To this regard, agroforestry got special impetus in tropical agriculture.Farmers of the tropical region traditionally use variety of species composition in agro forestry practices. In Bangladesh, legumi nous tree species are traditionally used in different agroforestry practices. Presently, farmers prefer Eucalyptus camaldulensis and Swietenia macrophylla due to their commer cial values. Agroforestry being a people ori ented program, farmer's preference should be acknowledged, but the performance of these species is needed to be scientifically assessed with due attention in terms of nutri ent return efficiency for further promotion. However, nutrient return from a tree is influ enced by quantity, quality (nutrient composi tion) and rate of leaching and decomposition of plant litter (Senevirante et al. 1998, Kwa biah et al. 2001. Leaf litter is the main and quick source of nutrient return to the soil compared to other litter components (Tukey 1970, Wetzel & Manny 1972, Mason 1977, Dahm 1981, Park & Hyun 2003. The present study aimed to assess the pattern of nutrients leaching (N, P and K) from the leaf litter of E. camaldulensis and S. macro phylla in laboratory condition. Materials and Methods Leaf litter selection and leaching exper imentBulk of yellowish senescent leaves of E. camaldulensis and S. macrophylla were col lected during March 2007 (maximum leaf fall period). This period corresponds to dry season and no leaching was occurred from litter. Litter was air-dried at room tempera ture for one week. For each species, air-dried leaves were thoroughly mixed and weighted to two grams as an individual sample and thus a total of 42 samples were prepared. Each sample was placed at room temperature into individual beaker (500 ml) and 250 ml of distilled water was poured to each beaker and few drops of HgCl2 solution (50 mg l -1 - McLachlan 1971, Otsuki & Wetzel 1974 were added in each beaker to prevent fungal decay. Five samples were kept into an oven at 80°C until constant weight to get the airdry to oven-dry conversion weight. Sample collection and measurementsThree replicates of samples were collected at 0, 1, 2, 3, 4, 8, 12, 24, 36, 48, 72 and 96 hours of intervals and the collected samples were ringed by distilled water and ovendried at 80°C to const...

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Section: Discussionmentioning

confidence: 98%

Nutrients (N, P and K) dynamics associated with the leaf litter of two agroforestry tree species of Bangladesh

Mahmood¹,

Limon²,

Rahman³

et al. 2009

iForest

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“…Higher rate of decomposition of leaf litter was found during the first 30 days, followed by a gradual mass loss for the subsequent 150 days (Figure 2) which indicates two stages, that is, initial stage and advanced stage [26,35]. In the initial stage, relatively larger decrease in mass was observed due to leaching of readily soluble substances and nonlignified carbohydrates [36][37][38]. While in the advanced stage, the further decrease in mass loss may be attributed to the release of higher percentage of recalcitrant fractions like cellulose, lignin, and tannin of leaf litter [39].…”

Section: Mass Lossmentioning

confidence: 92%

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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“…A total of 90 samples were prepared of each species. Eighty five samples were placed into individual beaker (500 mL) and 200 mL of distilled water was added to each beaker and few drops of HgCl 2 solution (50 mg/L) were added to each beaker to prevent fungal decay (Ibrahima et al 2008;Mahmood et al 2009). The beakers were kept at room temperature and covered with polyethylene sheets; and the experiment was conducted for 192 hours.…”

Section: Methodsmentioning

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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Changes in organic compounds during leaf litter leaching: laboratory experiment on eight plant species of the Sudano-guinea Savannas of Ngaoundere, Cameroon

Cited by 32 publications

References 15 publications

Nutrients (N, P and K) dynamics associated with the leaf litter of two agroforestry tree species of Bangladesh

Nutrients (N, P and K) dynamics associated with the leaf litter of two agroforestry tree species of Bangladesh

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

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

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