ISOTOPIC CHARACTERIZATION OF ORGANIC MATERIALS LEACHED FROM LEAVES IN WATER OF MUNDARING WEIR DAM

ABSTRACT This study examined the organic constituents aquatically leached from leaf components of two tree species (wandoo eucalyptus and pinus radiate). In particular this study aimed to assess the stable isotope composition behaviour of dissolved organic carbon (DOC) from the residue leaves after...

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Main Author: Perpustakaan UGM, i-lib
Format: Article
Published: [Yogyakarta] : Universitas Gadjah Mada 2009
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author Perpustakaan UGM, i-lib
author_facet Perpustakaan UGM, i-lib
author_sort Perpustakaan UGM, i-lib
collection UGM
description ABSTRACT This study examined the organic constituents aquatically leached from leaf components of two tree species (wandoo eucalyptus and pinus radiate). In particular this study aimed to assess the stable isotope composition behaviour of dissolved organic carbon (DOC) from the residue leaves after leaching over five months. The changes in the stable carbon and nitrogen isotope compositions of the leached leaves materials were investigated using an elemental analyzer-isotope ratio mass spectrometry (EA-irMS). The stable isotope compositions were found to vary according to microbially-mediatedalteration and decomposition. The average 813Ccontent of the raw plant elements was consistent with the 813C values of te"estrial plants. using a C3 photosynthetic pathway. The isotope compositions of leached materials of wandoo eucalyptus fresh leaf were continually depleted in 813Cover the leaching period of three months. These variations co"elated well with its DOC profile. Changes in 813Cvalues may also relate to the differential leaching of the macromolecularprecursors of the original material. Lignin, for example, has a typically low 813Cand probably contributed to the decrease of 813Cin residue of the plant materials. Keywords: isotope composition,leached materials, C3 plant
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spelling oai:generic.eprints.org:280582014-06-18T00:24:27Z https://repository.ugm.ac.id/28058/ ISOTOPIC CHARACTERIZATION OF ORGANIC MATERIALS LEACHED FROM LEAVES IN WATER OF MUNDARING WEIR DAM Perpustakaan UGM, i-lib Jurnal i-lib UGM ABSTRACT This study examined the organic constituents aquatically leached from leaf components of two tree species (wandoo eucalyptus and pinus radiate). In particular this study aimed to assess the stable isotope composition behaviour of dissolved organic carbon (DOC) from the residue leaves after leaching over five months. The changes in the stable carbon and nitrogen isotope compositions of the leached leaves materials were investigated using an elemental analyzer-isotope ratio mass spectrometry (EA-irMS). The stable isotope compositions were found to vary according to microbially-mediatedalteration and decomposition. The average 813Ccontent of the raw plant elements was consistent with the 813C values of te"estrial plants. using a C3 photosynthetic pathway. The isotope compositions of leached materials of wandoo eucalyptus fresh leaf were continually depleted in 813Cover the leaching period of three months. These variations co"elated well with its DOC profile. Changes in 813Cvalues may also relate to the differential leaching of the macromolecularprecursors of the original material. Lignin, for example, has a typically low 813Cand probably contributed to the decrease of 813Cin residue of the plant materials. Keywords: isotope composition,leached materials, C3 plant [Yogyakarta] : Universitas Gadjah Mada 2009 Article NonPeerReviewed Perpustakaan UGM, i-lib (2009) ISOTOPIC CHARACTERIZATION OF ORGANIC MATERIALS LEACHED FROM LEAVES IN WATER OF MUNDARING WEIR DAM. Jurnal i-lib UGM. http://i-lib.ugm.ac.id/jurnal/download.php?dataId=11121
spellingShingle Jurnal i-lib UGM
Perpustakaan UGM, i-lib
ISOTOPIC CHARACTERIZATION OF ORGANIC MATERIALS LEACHED FROM LEAVES IN WATER OF MUNDARING WEIR DAM
title ISOTOPIC CHARACTERIZATION OF ORGANIC MATERIALS LEACHED FROM LEAVES IN WATER OF MUNDARING WEIR DAM
title_full ISOTOPIC CHARACTERIZATION OF ORGANIC MATERIALS LEACHED FROM LEAVES IN WATER OF MUNDARING WEIR DAM
title_fullStr ISOTOPIC CHARACTERIZATION OF ORGANIC MATERIALS LEACHED FROM LEAVES IN WATER OF MUNDARING WEIR DAM
title_full_unstemmed ISOTOPIC CHARACTERIZATION OF ORGANIC MATERIALS LEACHED FROM LEAVES IN WATER OF MUNDARING WEIR DAM
title_short ISOTOPIC CHARACTERIZATION OF ORGANIC MATERIALS LEACHED FROM LEAVES IN WATER OF MUNDARING WEIR DAM
title_sort isotopic characterization of organic materials leached from leaves in water of mundaring weir dam
topic Jurnal i-lib UGM
work_keys_str_mv AT perpustakaanugmilib isotopiccharacterizationoforganicmaterialsleachedfromleavesinwaterofmundaringweirdam