| dc.description.abstract | The mangrove litter which has been decomposed contributes organic
matter as food source for many species of fish and other organisms in the
mangrove ecosystem. This study aims to determine the effect of salinity on the
rate of leaf litter decomposition A. marina and to know the nutrient content of
carbon (C), nitrogen (N) and phosphorus (P) in the A. marina litter leaf which
been released during the decomposition time. This research was done at
Hamparan Perak base Deli Serdang sub-district of North Sumatera Province
during February until Mei 2017. The results of the study of leaf litter A. marina at
0-10 ppt salinity level more quickly decomposes. The average weight of the rest
of the leaf litter A. marina which decompose at a rate of 0-10 ppt salinity, 10-20
ppt and 20-30 ppt yaitu 1,46 grams, 5,86 grams, dan 6,53 grams.The rate of leaf
litter decomposition A. marina at a rate of 0-10 ppt salinity, 10-20 ppt and 20-30
ppt was 0,54, 0,49, dan 0,48. Carbon levels of nutrients in the leaf litter A. marina
ppt salinity level 0-10, 10-20 ppt and 20-30 ppt was 18,61%, 18,97%, dan
12,41%. Levels of nutrients nitrogen in leaf litter A. marina ppt salinity level 0-
10 ppt, 10-20 ppt and 20-30 ppt was 1,51%, 1,68%, dan 1,68% . As well as the
levels of the nutrient phosphorus leaf litter A. marina on ppt salinity level 0-10
ppt, 10-20 ppt and 20-30 ppt was 0,58%, 0,52%, dan 0,51% respectively | en_US |
