scholarly journals Litter Production, Decomposition, and Nutrient Release in Subalpine Forest Communities of the Northwest Himalaya

2014 ◽  
Vol 2014 ◽  
pp. 1-13 ◽  
Author(s):  
Vinod K. Bisht ◽  
Bhagwati P. Nautiyal ◽  
Chandra P. Kuniyal ◽  
P. Prasad ◽  
Rakesh C. Sundriyal
Keyword(s):  
Leaf Litter ◽  
Litter Decomposition ◽  
Air Temperature ◽  
Rainy Season ◽  
Nutrient Release ◽  
Forest Community ◽  
Subalpine Forest ◽  
Litter Production ◽  
North West ◽  
Fresh Litter

Production, decomposition, and release of nutrients from leaf and nonleaf litter were investigated in four subalpine forests of North-West Himalaya, India. Total annual litter fall in four communities varied from 2950.00 to 4040.00 kg ha−1 and was found significant (CD0.05 = 118.2). Decomposition of leaf litter varied from 1.82–3.5% during autumn-winter to 36.14–45.51 during summer rainy season in all stands and percent of mass loss was significantly varied in stands (CD6.00). Similarly, decomposition in nonleaf litter was varied from 0.3–1.1% during autumn-winter to 19.59–30.05% during summer rainy season and was significantly varied irrespective of seasons. However, percent decomposition of leaf litter and the values of decay constant (k) were at par in all stands. Total standing state of nutrients in fresh litter as well as release of total nitrogen (N), phosphorus (P), and potassium (K) in due course of decomposition (12 months) was also varying significantly. The rate of nonleaf litter decomposition was significantly positively correlated with air temperature (r=0.63–0.74 in all communities). The significant correlation (r=0.85) was observed only in Rhododendron-Sorbus forest community (PRS). Study indicates that the air temperature is a major determinant for nonleaf litter decomposition in this region.

scholarly journals Litter-Fall Production, Decomposition and Elemental (Ca, K, Mn, Fe, Zn and Co) Cycling in Deciduous Sal (Shorea Robusta) Forest in Bangladesh

2021 ◽  
Author(s):  
Razia Sultana ◽  
ASM Saifullah ◽  
Rahat Khan Khan ◽  
Mir Talas Mahammad Diganta
Keyword(s):  
Leaf Litter ◽  
Plant Species ◽  
Deciduous Forest ◽  
Pearson Correlation ◽  
Nutrient Release ◽  
Tectona Grandis ◽  
Sampling Period ◽  
Litter Production ◽  
Shorea Robusta ◽  
Terminalia Bellirica

Abstract The litters in the forest floor are the principal contributor for regulating the cycling of necessary elements, primary productivity and maintain soil fertility within the forest ecosystems. Therefore, this study was conducted in a deciduous forest of Bangladesh to ascertain the leaf-litter production and decomposition along with elemental dynamics (K, Ca, Mn, Fe, Co and Zn). Leaf-litter samples from five deciduous plant species and soil samples were collected from the Madhupur Sal Forest for about six months (July-December) in 2018. Production of leaf-litter during the dry season (December) was found in an order of Shorea robusta>Dipterocarpus indicus>Terminalia bellirica>Tectona grandis>Grewia microcos. The decomposition rates were higher for the long sampling period (90 days) followed by the intermediate (60 days)> short(30 days) sampling period. The nutrient release pattern from the leaf-litter was similar (Ca>K>Mn>Fe>Zn>Co) for all plant species except for Terminalia bellirica and Tectona grandis. The Pearson correlation coefficients showed a significant relationship between K and Fe (r=0.54; p<0.05), Ca and Co (r=0.59; p<0.01), Fe and Co (r=0.97; p<0.05) in leaf-litters. Analysis of variance (ANOVA) revealed significant variation in the litter production, decomposition and nutrient content (except Zn; p>0.05) among the different plant species (p<0.05). There revealed a significant dynamic of necessary elements from soil to trees and vice-versa.

Pengaruh Kerapatan Berbeda Terhadap Produksi Dan Laju Dekomposisi Serasah Mangrove Xylocarpus granatum Koenig, 1784 (Meliaceae:Rosids) dan Rhizophora apiculate Blume,1827 (Rhizophoraceae: Rosids) di Perairan Pulau Bintan

2021 ◽  
Vol 10 (2) ◽  
pp. 233-242
Author(s):  
Muslimin Muslimin ◽  
Susiana Susiana ◽  
Aditya Hikmat Nugraha
Keyword(s):  
Data Collection ◽  
Leaf Litter ◽  
Litter Decomposition ◽  
Decomposition Rate ◽  
Good Condition ◽  
Litter Production ◽  
Total Density ◽  
Rhizophora Apiculata ◽  
A Value ◽  
Xylocarpus Granatum

Penelitian mengenai Produksi dan Laju Dekomposisi Serasah Mangrove Xylocarpus granatum dan Rhizophora apiculata di Perairan Busung dan Tanjung Unggat Pulau Bintan. Tujuan penelitian ini adalah untuk membandingkan produksi dan laju dekomposisi serasah mangrove Xylocarpus granatum dan Rhizophora apiculata di perairan Busung dan Tanjung Unggat, Pulau Bintan. Penelitian ini di laksanakan pada bulan Februari – Mei 2020 mengenai produksi dan laju dekomposisi serasah mangrove X. granatum dan R. apiculata di perairan Busung dan Tanjung Unggat Pulau Bintan. Penelitian ini bertujuan membandingkan produksi dan laju dekomposisi serasah mangrove X. granatum dan  R. apiculata. Penelitian ini dilakukan dengan penentuan lokasi, kemudian persiapan alat dan bahan dan dilanjutkan dengan pengambilan data kerapatan mangrove dan pengambilan data serasah serta laju dekomposisi. Hasil penelitian ditemukan 2 jenis mangrove di 2 stasiun yaitu X. granatum dan R. apiculata. Kerapatan total di Desa Busung berjumlah 2267 pohon/ha tergolong sangat padat dan masih dalam kondisi baik sedangkan kerapatan total di Tanjung Unggat berjumlah 1200 pohon/ha tergolong sedang dan masih dalam kondisi baik. Produksi serasah tertinggi yaitu terjadi pada Stasiun Busung yaitu R. apiculata 1.47 g/m2/hari dan X. ganatum 0.83 g/m2/hari dengan kerapatan yang padat dan untuk hasil terendah terjadi pada stasiun Tanjung Unggat yaitu R. apiculata 1.09 g/m2/hari dan X. granatum 0.65 g/m2/hari dengan kerapatan sedang. Laju dekomposisi serasah daun spesies X. granatum menunjukkan nilai 0.0192 dan Laju dekomposisi serasah daun spesies R. apiculata menunjukkan nilai 0.0203. Laju dekomposisi sersah daun terjadi penurunan yang sangat signifikan pada hari ke 14 yaitu dengan kisaran 0.04 – 0.06 gr/hr. Sedangkan pada hari ke-14 sampai hari ke-28 relatif  konstan, dengan kisaran 0.01 – 0.03 gr/hr. Research on the Production and Decomposition Rate of Xylocarpus granatum and Rhizophora apiculata Mangrove Litter in Busung and Tanjung Unggat Waters, Bintan Island. The purpose of this study was to compare the production and decomposition rate of mangrove litter from Xylocarpus granatum and Rhizophora apiculata in the waters of Busung and Tanjung Unggat, Bintan Island. This research was conducted in February - May 2020 regarding the production and decomposition rate of mangrove litter X. granatum and R. apiculata in the waters of Busung and Tanjung Unggat Bintan Island. This study aims to compare the production and decomposition rate of mangrove litter X. granatum and R. apiculata. This research was conducted by determining the location, then preparing the tools and materials, followed by collecting data on mangrove density and data collection of litter and decomposition rate. The results found 2 types of mangroves at 2 stations, namely X. granatum and R. apiculata. The total density in Busung Village was 2267 trees / ha which was classified as very dense and still in good condition, while the total density in Tanjung Unggat was 1200 trees / ha which was classified as moderate and still in good condition. The highest litter production occurred at Busung Station, namely R. apiculata 1.47 g/M2/day and X. granatum 0.83 g/m2 /day with a dense density and for the lowest yield occurred at Tanjung Unggat station, namely R. apiculata 1.09 g/m2/day and X. granatum 0.65 g/m2/day with moderate density. The leaf litter decomposition rate of species X. granatum showed a value of 0.0192 and the rate of decomposition of leaf litter of species R. apiculata showed a value of 0.0203. The decomposition rate of leaf litter decreased significantly on day 14, in the range of 0.04 - 0.06 gr/day. Meanwhile, on day 14 to day 28 it is relatively constant, with a range of 0.01 - 0.03 g/day.

In situ leaf litter production, decomposition and nutrient release of dry Afromontane trees

2019 ◽  
Vol 83 (3) ◽  
pp. 176-190 ◽  
Author(s):  
Emiru Birhane ◽  
Tekleab Desalegn ◽  
Fassil Kebede ◽  
Kidane Giday ◽  
Hadgu Hishe ◽  
...  
Keyword(s):  
Leaf Litter ◽  
Nutrient Release ◽  
Litter Production ◽  
Leaf Litter Production

scholarly journals Leaf litter decomposition rates increase with rising mean annual temperature in Hawaiian tropical montane wet forests

2014 ◽  
Author(s):  
Lori D Bothwell ◽  
Paul C Selmants ◽  
Christian P Giardina ◽  
Creighton M. Litton
Keyword(s):  
Leaf Litter ◽  
Litter Decomposition ◽  
Forest Ecosystems ◽  
Net Primary Productivity ◽  
Nutrient Release ◽  
Leaf Litter Decomposition ◽  
Mean Annual Temperature ◽  
Decomposition Rates ◽  
Litter Decay ◽  
Wet Forests

Decomposing litter in forest ecosystems supplies nutrients to plants, carbon to heterotrophic soil microorganisms and is a large source of CO2 to the atmosphere. Despite its essential role in carbon and nutrient cycling, the temperature sensitivity of leaf litter decay in tropical forest ecosystems remains poorly resolved, especially in tropical montane wet forests where the warming trend may be amplified compared to tropical wet forests at lower elevations. We quantified leaf litter decomposition rates along a highly constrained 5.2 °C mean annual temperature (MAT) gradient in tropical montane wet forests on the Island of Hawaii. Dominant vegetation, substrate type and age, soil moisture, and disturbance history are all nearly constant across this gradient, allowing us to isolate the effect of rising MAT on leaf litter decomposition and nutrient release. Leaf litter decomposition rates were a positive linear function of MAT, causing the residence time of leaf litter on the forest floor to decline by ~31 days for each 1 °C increase in MAT. Our estimate of the Q10 temperature coefficient for leaf litter decomposition was 2.17, within the commonly reported range for heterotrophic organic matter decomposition (1.5 – 2.5) across a broad range of ecosystems. The percentage of leaf litter nitrogen (N) remaining after six months declined linearly with increasing MAT from ~ 88% of initial N at the coolest site to ~74% at the warmest site. The lack of net N immobilization during all three litter collection periods at all MAT plots indicates that N was not limiting to leaf litter decomposition, regardless of temperature. These results suggest that leaf litter decay in tropical montane wet forests may be more sensitive to rising MAT than in tropical lowland wet forests, and that increased rates of N release from decomposing litter could delay or prevent progressive N limitation to net primary productivity with climate warming.

scholarly journals Nutrient Release Dynamics Associated with Native and Invasive Leaf Litter Decomposition: A Mesocosm Experiment

Water ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2350
Author(s):  
Thendo Mutshekwa ◽  
Ross N. Cuthbert ◽  
Ryan J. Wasserman ◽  
Florence M. Murungweni ◽  
Tatenda Dalu
Keyword(s):  
Leaf Litter ◽  
Litter Decomposition ◽  
Plant Species ◽  
Nutrient Release ◽  
Leaf Litter Decomposition ◽  
Nutrient Concentrations ◽  
Native Plant ◽  
Nutrient Inputs ◽  
Study Results ◽  
Over Time

Leaf litter contributes to the functioning of aquatic ecosystems through allochthonous inputs of carbon, nitrogen, and other elements. Here, we examine leaf litter nutrient inputs and decomposition associated with four plant species using a mesocosm approach. Native sycamore fig Ficus sycomorus L., and silver cluster–leaf Terminalia sericea Burch. ex DC. decomposition dynamics were compared to invasive tickberry Lantana camara L. and guava Psidium guajava L., whereby phosphate, nitrate, nitrite, silicate, and ammonium releases were quantified over time. Leaf inputs significantly reduced pH, with reductions most marked by invasive L. camara. Conductivity was heightened by all leaf input treatments, except native T. sericea. Leaf inputs significantly affected all nutrient levels monitored in the water over time, except for silicate. In particular, leaf litter from invasive L. camara drove significantly increased nutrient concentrations compared to other native plant species, whilst effects of invasive P. guajava were less statistically clear. The end weights of the leaf litter demonstrated decomposition differences among the species types, following a decreasing order of P. guajava > T. sericea > F. sycomorus > L. camara, further suggesting high organic inputs from invasive L. camara. The study results highlight that differential leaf litter decomposition rates of four plant species can play a significant role in nutrient release, in turn altering aquatic ecosystem productivity. However, these effects likely depend on species-specific differences, rather than between invasive–native species generally. Shifting terrestrial plant communities may alter aquatic community composition, but specific effects are likely associated with leaf traits.

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