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.

scholarly journals Estimation of biomass, carbon stocks and leaf litter decomposition rate in teak Tectona grandis Linn plantations in city forest of Hasanuddin University, Makassar

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Slamet Santosa ◽  
Muhamad Ruslan Umar ◽  
Dody Priosambodo ◽  
Rizki Amalia Puji Santosa
Keyword(s):  
Leaf Litter ◽  
Litter Decomposition ◽  
Decomposition Rate ◽  
Tectona Grandis ◽  
Carbon Stocks ◽  
Leaf Litter Decomposition ◽  
Average Height ◽  
Biomass Carbon ◽  
Litter Decomposition Rate ◽  
Teak Plantations

Teak Tectona grandis Linn is still used as the main product in the form of wood, while other products, especially environmental services have not received much attention. This study analyzed biomass, carbon stocks and decomposition rate of leaf litter in teak plantations in city forest of Hasanuudin University, Makassar. The individual biomass of teak plants is calculated using the allometric equation, Y=0.11x ρ x D2.62. Carbon stocks were analyzed using a formulation, C=0.47xB. The leaf litter decomposition rate is expressed as the ratio of the remaining litter dry weight, with the formulation, X= (A-B)/A. The number of teak plants in 5 sample plots were 239 trees with an average stem diameter of 20.6cm and an average height of 9.02m. Total biomass in 5 sample plots was 51,712.61g. Carbon stock in 5 sample plots was 24,304.92g. Decomposition rate average of leaf litter of 24.4g during 60 days incubation. The existence of teak plantations is able to reduce CO2 in the atmosphere by as much as 89,199.06gCO2 and resulting in a decomposition rate of teak leaf litter 0.4g per day

The effects of ZnO nanoparticles on leaf litter decomposition under natural sunlight

2019 ◽  
Vol 6 (4) ◽  
pp. 1180-1188 ◽  
Author(s):  
Jingjing Du ◽  
Yuyan Zhang ◽  
Mingxiang Qv ◽  
Ke Li ◽  
Xiaoyun Yin ◽  
...  
Keyword(s):  
Leaf Litter ◽  
Litter Decomposition ◽  
Zno Nanoparticles ◽  
Decomposition Rate ◽  
Leaf Litter Decomposition ◽  
Zno Nanoparticle ◽  
Nanoparticle Concentration ◽  
Microcosm Experiment ◽  
Natural Sunlight ◽  
Poplar Leaf

An indoor microcosm experiment showed that decomposition rate of poplar leaf litter was significantly and negatively related to ZnO nanoparticle concentration under natural sunlight.

The Influence of Silviculture Treatments on the Leaf Litter Decomposition Rate of Triploid Populus tomentoza

2014 ◽  
Vol 955-959 ◽  
pp. 3783-3794
Author(s):  
Yue Qin Song ◽  
Zong Qiang Xie
Keyword(s):  
Leaf Litter ◽  
Litter Decomposition ◽  
Decomposition Rate ◽  
Leaf Litter Decomposition ◽  
Nutrient Cycle ◽  
Forest Belt ◽  
Soil Productivity ◽  
Litter Decomposition Rate ◽  
Silvicultural Treatments ◽  
Tree Canopy Cover

Leaf litter decomposition is a fundamental mechanism for self-fertilization in forest ecosystems. Decomposition rate is an important factor in this process. Understanding how silvicultural treatments affect leaf litter decomposition rate can aid in plantation management. In order to reveal the effects of silvicultural treatments on litter decomposition in triploid Populus tomentoza pulp plantations, a litterbag technique was employed in a range of experimental conditions: with/without tree canopy cover (inter or intra forest belts), intercropping, and embedment in the soil. The results showed treatments had varying affects on leaf litter decomposition. The micro-environment created by the forest belt had no significant impact on leaf litter decomposition. The rate of decomposition of embedded leaf litter was significantly higher than litter on the soil surface, indicating that litter buried by tillage or hoeing would promote faster decomposition. Leaf litter decomposition was also enhanced by mixing with cotton (Gossypium sp.) leaf, showing that intercropping sped up the nutrient cycle in triploid P. tomentoza pulp plantations, thereby maintaining and improving soil productivity.

scholarly journals In-Stream Variability of Litter Breakdown and Consequences on Environmental Monitoring

Water ◽  
2021 ◽  
Vol 13 (16) ◽  
pp. 2246
Author(s):  
Gbenga Emmanuel Omoniyi ◽  
Benjamin Bergerot ◽  
Laura Pellan ◽  
Maëva Delmotte ◽  
Alain Crave ◽  
...  
Keyword(s):  
Leaf Litter ◽  
Litter Decomposition ◽  
Decomposition Rate ◽  
Anthropogenic Impacts ◽  
Local Scale ◽  
Leaf Litter Decomposition ◽  
Litter Breakdown ◽  
Microbial Decomposition ◽  
Mesh Bags ◽  
North Western

Energy derived from leaf litter decomposition fuels food webs in forested streams. However, the natural spatial variability of the decomposition rate of leaf litter and the relative contributions of its drivers are poorly known at the local scale. This study aims to determine the natural in-stream variability of leaf litter decomposition rates in successive riffles and to quantify the factors involved in this key ecosystem process at the local scale. Experiments were conducted on six successive riffles in nine streams in north-western France to monitor the decomposition rate in fine (microbial decomposition, kf) and coarse (total decomposition, kc) mesh bags. We recorded 30 ± 2% (mean ± S.E.) variation in kc among riffles and 43 ± 4% among streams. kf variability was 15 ± 1% among riffles and 20 ± 3% among streams. However, in-stream variability was higher than between-stream variability in four of the nine streams. Streambed roughness was negatively related to decomposition and was the most important factor for both total and microbial decomposition. Our study shows that the natural variability of the decomposition rate resulting from the local morphological conditions of habitats could be very important and should be taken into consideration in studies using leaf litter assays as a bio-indicator of anthropogenic impacts in streams.

scholarly journals Produksi Serasah Musiman pada Berbagai Spesies Mangrove di Pesisir Kabupaten Muna Barat, Sulawesi Tenggara

2020 ◽  
Vol 25 (3) ◽  
pp. 323-333
Author(s):  
Rahman Rahman ◽  
Yusli Wardiatno ◽  
Fredinan Yulianda ◽  
Iman Rusmana
Keyword(s):  
Leaf Litter ◽  
Mangrove Ecosystem ◽  
Litter Production ◽  
Bruguiera Gymnorrhiza ◽  
Rhizophora Stylosa ◽  
Rhizophora Apiculata ◽  
Sonneratia Alba ◽  
Wet Weight ◽  
Bruguiera Cylindrica ◽  
Leaf Litter Production

Mangrove litter production is important in the displacement of organic matter from mangrove vegetation to water such as in the coast of West Muna Regency. However, one factor influencing it is the frequency of rainfall. This research, therefore, aims to determine the influence of the frequency of rainfall in mangrove ecosystem by obtaining data through the fractional wet weight. The results showed that the biomass fraction with the largest amount were Rhizophora mucronata, Rhizophora apiculata, and Sonneratia alba with of 31.59; 31.07; and 30.96%, respectively, while the lowest was Rhizophora stylosa, Bruguiera cylindrica, and Bruguiera gymnorrhiza with of 30.07; 30.10; and 31.95%, respectively. The species with the largest leaf litter production was Bruguiera cylindrica, with of 1.72 g.m-2.day-1 which occurred in April and the lowest was Rhizophora apiculata, 0.24 g.m-2.day-1 in August. The species with the largest leaf litter production was Bruguiera cylindrica, 1.96 g.m-2.day-1 which occurred in May and the lowest was Sonneratia alba, 0.29 g.m-2.day-1 in August. In addition, the species with the largest fruit litter production was Rhizophora apiculata, 1.76 g.m-2.day-1 in April and the lowest was Sonneratia alba, 0.32 g.m-2.day-1 in September. The total litter production was 18,75 g.m-2.day-1 consisted of 6,69 g.m2.day-1 leaf litter, 6,54 g.m-2.day-1 branch litter, and 5,52 g.m-2.day-1 fruit litter. The higher the frequency of the rain, the greater the litter production.   Keywords: biomass fraction, seasonal litter production, West Muna Regency

scholarly journals Factors controlling <i>Carex brevicuspis</i> leaf litter decomposition and its contribution to surface soil organic carbon pool at different water levels

2021 ◽  
Vol 18 (1) ◽  
pp. 1-11
Author(s):  
Lianlian Zhu ◽  
Zhengmiao Deng ◽  
Yonghong Xie ◽  
Xu Li ◽  
Feng Li ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Water Level ◽  
Leaf Litter ◽  
Litter Decomposition ◽  
Decomposition Rate ◽  
Dry Weight ◽  
Water Levels ◽  
Carbon Pool ◽  
Litter Input

Abstract. Litter decomposition plays a vital role in wetland carbon cycling. However, the contribution of aboveground litter decomposition to the wetland soil organic carbon (SOC) pool has not yet been quantified. Here, we conducted a Carex brevicuspis leaf litter input experiment to clarify the intrinsic factors controlling litter decomposition and quantify its contribution to the SOC pool at different water levels. The Carex genus is ubiquitous in global freshwater wetlands. We sampled this plant leaf litter at −25, 0, and +25 cm relative to the soil surface over 280 d and analysed leaf litter decomposition and its contribution to the SOC pool. The percentage litter dry weight loss and the instantaneous litter dry weight decomposition rate were the highest at +25 cm water level (61.8 %, 0.01307 d−1), followed by the 0 cm water level (49.8 %, 0.00908 d−1), and the lowest at −25 cm water level (32.4 %, 0.00527 d−1). Significant amounts of litter carbon, nitrogen, and phosphorus were released at all three water levels. Litter input significantly increased the soil microbial biomass and fungal density but had nonsignificant impacts on soil bacteria, actinomycetes, and the fungal∕bacterial concentrations at all three water levels. Compared with litter removal, litter addition increased the SOC by 16.93 %, 9.44 %, and 2.51 % at the +25, 0, and −25 cm water levels, respectively. Hence, higher water levels facilitate the release of organic carbon from leaf litter into the soil via water leaching. In this way, they increase the soil carbon pool. At lower water levels, soil carbon is lost due to the slower litter decomposition rate and active microbial (actinomycete) respiration. Our results revealed that the water level in natural wetlands influenced litter decomposition mainly by leaching and microbial activity, by extension, and affected the wetland surface carbon pool.

scholarly journals Leaf-litter decomposition and nutrient dynamics of five selected tropical tree species

2020 ◽  
Vol 30 (1) ◽  
pp. 32-38
Author(s):  
S. Bhattarai ◽  
B. Bhatta
Keyword(s):  
Weight Loss ◽  
Leaf Litter ◽  
Litter Decomposition ◽  
Rate Constant ◽  
Decomposition Rate ◽  
Tree Species ◽  
Nutrient Dynamics ◽  
Decomposition Rate Constant ◽  
Tropical Tree Species ◽  
One Year

Leaf-litter decomposition in terrestrial ecosystems has a major role in recycling the nutrients to the soil. Nutrient dynamics is the way nutrients cycle in an ecosystem. The present study was conducted for five selected tropical tree species viz. Shorea robusta, Ficus hookeri, Mallotus philippensis, Artocarpus lakoocha and Dillenia pentagyna at Hetauda, Makawanpur. This paper aims to determine the litter decomposition rate-constant and nutrient mineralization pattern of the selected species. The litter-bag method was used to assess the decomposition and nutrient dynamics for one year. Both decomposition rate-constant and weight loss were highest for M. philippensis (% weight loss = 73.49; k = 0.33) and lowest for S. robusta (% weight loss = 54.01; k = 0.18). In general, weight remaining showed a strong negative correlation with N and P concentration but a slightly negative with K. However, the remaining weight of litter showed a strong positive correlation with C : N ratio, thus indicating a good predictor of mass loss and mineralization. The study showed that there was no net release of nitrogen during the one-year study period; however, the net P release was found to be highest for S. robusta followed by D. pentagyna and the net K release was highest in F. hookeri followed by A. lakoocha.

scholarly journals Dekomposisi Serasah dan Keanekaragaman Makrofauna Tanah pada Hutan Tanaman Industri Nyawai (Ficus variegate. Blume)

2017 ◽  
Vol 11 (2) ◽  
pp. 212
Author(s):  
Pranatasari Dyah Susanti ◽  
Wawan Halwany
Keyword(s):  
Litter Decomposition ◽  
Decomposition Rate ◽  
Quantitative Method ◽  
Soil Surface ◽  
Soil Sampling ◽  
Litter Production ◽  
Plantation Forest ◽  
Age Classes ◽  
Soil Macrofauna ◽  
Industrial Plantation

Penggunaan jenis-jenis tanaman cepat tumbuh diperlukan untuk memenuhi kebutuhan kayu. Meski demikian, informasi mengenai kesuburan tanah kerena penanaman jenis tersebut masih terbatas. Penelitian ini bertujuan mendapatkan data dan informasi mengenai produksi, laju dekomposisi serasah serta keragaman makrofauna tanah pada Hutan Tanaman Industri nyawai (Ficus variegate Blume) dengan tiga kelas umur yang berbeda. Penelitian ini menggunakan metode kuantitatif. Penentuan plot sampel dilakukan secara purposive dengan pertimbangan keterwakilan umur. Variabel yang diamati meliputi jumlah produksi serasah, laju dekomposisi serasah, serta makrofauna tanah menggunakan dua cara yaitu monolith atau pengambilan contoh tanah (PCT) untuk makrofauna tanah yang berada di dalam tanah, serta penggunaan perangkap sumuran (PSM) untuk makrofauna yang berada di permukaan tanah. Hasil penelitian menunjukkan pada tegakan umur 6 tahun memiliki laju dekomposisi serasah terbaik karena sebanyak 48,31% serasah terdekomposisi dengan laju 11%. Pada kelas umur ini keragaman makrofauna juga memiliki nilai tertinggi yaitu 1,08 meskipun masih berada dalam kategori rendah.Kata kunci: dekomposisi; kesuburan tanah; makrofauna; nyawai; serasah Litter Decomposition and Diversity of Soil Macrofauna on Industrial Plantation Forest of NyawaiAbstractThe use of fast-growing tree species is necessary to meet the demand of timber. However, the information with regard the fertility of the soil for planting of these species is still limited. This study aimed to obtain data and information on the litter production and its rate of decomposition as well as soil macrofauna diversity on Industrial Plantation Forest of nyawai (Ficus variegate. Blume) with three different age classes. This study used a quantitative method. Sample plots were determined purposively with consideration of the representation of age. The observed variables included the amount of production of litter, decomposition rate of litter, and soil macrofauna using two methods, i.e. monolith or soil sampling (PCT) for soil macrofauna underground the soil and trap wells (PSM) for macrofauna on soil surface. The results showed in the 6-year-old stands showed the best litter ecomposition rates, since 48.31% of litter was decomposed at a rate of 11%. At this age class, diversity of macrofauna also has the highest score as 1.08, although that value was still in the low category. 

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