Decomposition rate of Rhizopora stylosa litter in Tanjung Rejo Village, Deli Serdang Regency, North Sumatera Province

International Conference on Agriculture, Environment, and Food Security

农业科学;生态环境科学

Rambey, R.^1 ; Delvian^1 ; Sianturi, S.D.^2

Department of Forestry, Faculty of Forestry, Universitas Sumatera Utara, Jl. Tri Dharma Ujung No.1, Medan, North Sumatera

20155, Indonesia^1

Faculty of Forestry, Universitas Sumatera Utara, Indonesia^2

关键词: Aspergillus sp;    Decomposers;    Decomposition rate;    Fusarium sp;    Litter decomposition;    Observation Period;    Penicillium sp;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/122/1/012058/pdf
DOI  :  10.1088/1755-1315/122/1/012058

来源: IOP

【 摘 要 】

Research on the decomposition rate of Rhizopora stylosa litter in Tanjung Rejo village, Deli Serdang Regency, North Sumatera Province was conducted from September 2016 to May 2017. The objectives of this research were (1) to measure the decomposition rate of Rhizophora stylosa litter and (2) to determine the type of functional fungi in decomposition of litter. R. stylosa litter decomposition is characterized by a reduction in litter weight per observation period. Decomposition rate tended to increase every week, which was from 0.238 in the seventh day and reached 0.302 on the fiftysixthth day. The decomposition rate of R. stylosa litter of leaf was high with the value of k per day > 0,01 caused by macrobentos and fungi, and also the decomposition of R. stylosa litter conducted in the pond area which is classified far from the coast. Therefore, to enable the high population of fungi which affect the decomposition rate of the litter. The types of fungi decomposers were: Aspergillus sp.-1, Aspergillus sp.-2, Aspergillus sp.-3, Rhizophus sp.-1., Rhizophus sp.-2, Penicillium sp., Syncephalastrum sp. and Fusarium sp.