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Controls on the net dissolved organic carbon production in tropical peat

SAINS TANAH - Journal of Soil Science and Agroclimatology · Vol. 17 No. 2 (2020) · hlm. 161–169

DOI
10.20961/stjssa.v17i2.45123
ISSN
2356-1424, 1412-3606
Terbit
2020-12-30
Penerbit
Universitas Sebelas Maret
Bahasa
en

Abstrak

Soil factors such as pH and the presence of polyvalent cations can influence the net production of dissolved organic carbon (DOC). This study aimed to determine the main factors that control net DOC production. The study was conducted at Buatan Village, Siak Indrapura Regency, Riau Province, Indonesia. Soil and water sampling were done every month for a year observation, from July 2018 to June 2019. Soil sampling was carried out to determine the concentration of C-organic acids, pH, N, P, K, Cu, and soil water content (SWC). Peat water sampling was carried out using modified pore water sampling to measure DOC concentration. Groundwater level (GWL) and soil temperature were also observed. Multiple regression analysis was performed to find out the soil and environmental factors controlling the net DOC production. The results showed that the net DOC production fluctuated with seasonal changes and soil pH was a significant controlling factor (P = 0.035) and positively correlated (P = 0.040) to the net DOC production. In addition, N-mineral, PO4, and Cu were positively correlated with net DOC production (P-value: 0.026; 0.033; and 0.028; respectively) while C-organic acids and SWC were negatively correlated (P-value: 0.033; and 0.020; respectively). There was no correlation between net DOC production with GWL, soil temperature, and K concentration. This finding confirmed that pH was the main factor controlling the net DOC production and reflects DOC contribution to the solution acidity.

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Sumber metadata: OAI-PMH (metadata jurnal) https://jurnal.uns.ac.id/tanah/oai, pertama di-harvest 10 Nov 2026, terakhir terlihat 10 Nov 2026.
Metadata asli (oai_dc) 
<oai_dc:dc xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/  http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
	<dc:title xml:lang="en">Controls on the net dissolved organic carbon production in tropical peat</dc:title>
	<dc:creator xml:lang="en">Nurzakiah, Siti</dc:creator>
	<dc:creator xml:lang="en">Sutandi, Atang</dc:creator>
	<dc:creator xml:lang="en">Sabiham, Supiandi</dc:creator>
	<dc:creator xml:lang="en">Djajakirana, Gunawan</dc:creator>
	<dc:creator xml:lang="en">Sudadi, Untung</dc:creator>
	<dc:subject xml:lang="en">Copper</dc:subject>
	<dc:subject xml:lang="en">C-organic acids</dc:subject>
	<dc:subject xml:lang="en">N and P nutrients</dc:subject>
	<dc:subject xml:lang="en">Soil pH</dc:subject>
	<dc:subject xml:lang="en">Soil water content</dc:subject>
	<dc:description xml:lang="en">Soil factors such as pH and the presence of polyvalent cations can influence the net production of dissolved organic carbon (DOC). This study aimed to determine the main factors that control net DOC production. The study was conducted at Buatan Village, Siak Indrapura Regency, Riau Province, Indonesia. Soil and water sampling were done every month for a year observation, from July 2018 to June 2019. Soil sampling was carried out to determine the concentration of C-organic acids, pH, N, P, K, Cu, and soil water content (SWC). Peat water sampling was carried out using modified pore water sampling to measure DOC concentration. Groundwater level (GWL) and soil temperature were also observed. Multiple regression analysis was performed to find out the soil and environmental factors controlling the net DOC production. The results showed that the net DOC production fluctuated with seasonal changes and soil pH was a significant controlling factor (P = 0.035) and positively correlated (P = 0.040) to the net DOC production. In addition, N-mineral, PO4, and Cu were positively correlated with net DOC production (P-value: 0.026; 0.033; and 0.028; respectively) while C-organic acids and SWC were negatively correlated (P-value: 0.033; and 0.020; respectively). There was no correlation between net DOC production with GWL, soil temperature, and K concentration. This finding confirmed that pH was the main factor controlling the net DOC production and reflects DOC contribution to the solution acidity.</dc:description>
	<dc:publisher xml:lang="en">Universitas Sebelas Maret</dc:publisher>
	<dc:date>2020-12-30</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:format>application/vnd.openxmlformats-officedocument.wordprocessingml.document</dc:format>
	<dc:identifier>https://jurnal.uns.ac.id/tanah/article/view/45123</dc:identifier>
	<dc:identifier>10.20961/stjssa.v17i2.45123</dc:identifier>
	<dc:source xml:lang="en">SAINS TANAH - Journal of Soil Science and Agroclimatology; Vol. 17 No. 2 (2020): December; 161-169</dc:source>
	<dc:source>2356-1424</dc:source>
	<dc:source>1412-3606</dc:source>
	<dc:source>10.20961/stjssa.v17i2</dc:source>
	<dc:language>en</dc:language>
	<dc:relation>https://jurnal.uns.ac.id/tanah/article/view/45123/29569</dc:relation>
	<dc:relation>https://jurnal.uns.ac.id/tanah/article/view/45123/55776</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2021 Siti Nurzakiah, Atang Sutandi, Supiandi Sabiham, Gunawan Djajakirana, Untung Sudadi</dc:rights>
</oai_dc:dc>