title: Effect of high sedimentation rates on surface sediment dynamics and mangrove growth in the Porong River, Indonesia.
abstract: Large quantities of mud from the LUSI (Lumpur Sidoarjo) volcano in northeastern Java have been channeled to the sea causing high rates of sediment delivery to the mouth of the Porong River, which has a cover of natural and planted mangroves. This study investigated how the high rates of sediment delivery affected vertical accretion, surface elevation change and the growth of Avicennia sp., the dominant mangrove species in the region. During our observations in 2010-2011 (4-5years after the initial volcanic eruption), very high rates of sedimentation in the forests at the mouth of the river gave rise to high vertical accretion of over 10cmy(-1). The high sedimentation rates not only resulted in reduced growth of Avicennia sp. mangrove trees at the two study sites at the Porong River mouth, but also gave rise to high soil surface elevation gains.
authors.affiliation: The School of Biological Sciences, The University of Queensland, St Lucia, QLD 4072, Australia; The Institute for Marine Research and Observation, The Agency for Marine and Fisheries Research, The Ministry of Marine Affairs and Fisheries, Perancak, Bali, Indonesia. Electronic address: frida.sidik@uqconnect.edu.au.
authors.forename: Frida
authors.initials: F
authors.lastname: Sidik
authors.affiliation: The School of Geography, Planning and Environmental Management, The University of Queensland, St Lucia, QLD 4072, Australia.
authors.forename: David
authors.initials: D
authors.lastname: Neil
authors.affiliation: The School of Biological Sciences, The University of Queensland, St Lucia, QLD 4072, Australia.
authors.forename: Catherine E
authors.initials: CE
authors.lastname: Lovelock
mesh_terms: D032407:Avicennia / Q000254:growth & development*; D065928:Forests; D019015:Geologic Sediments; D007214:Indonesia; D045483:Rivers; D014197:Trees
keywords: Avicennia sp.; Brantas River; LUSI mud volcano; Mangrove forests; Rod surface elevation tables; Sidoarjo