HUSCAP logo Hokkaido Univ. logo

Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Agriculture / Faculty of Agriculture >
Peer-reviewed Journal Articles, etc >

Variation in Soil Properties Regulate Greenhouse Gas Fluxes and Global Warming Potential in Three Land Use Types on Tropical Peat

This item is licensed under:Creative Commons Attribution 4.0 International

Files in This Item:
atmosphere-09-00465.pdf976.74 kBPDFView/Open
Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/73072

Title: Variation in Soil Properties Regulate Greenhouse Gas Fluxes and Global Warming Potential in Three Land Use Types on Tropical Peat
Authors: Ishikura, Kiwamu Browse this author
Darung, Untung Browse this author
Inoue, Takashi Browse this author
Hatano, Ryusuke Browse this author →KAKEN DB
Keywords: greenhouse gas emission
tropical peatland
global warming potential
land use
Issue Date: Nov-2018
Publisher: MDPI
Journal Title: Atmosphere
Volume: 9
Issue: 12
Start Page: 465
Publisher DOI: 10.3390/atmos9120465
Abstract: This study investigated spatial factors controlling CO2, CH4, and N2O fluxes and compared global warming potential (GWP) among undrained forest (UDF), drained forest (DF), and drained burned land (DBL) on tropical peatland in Central Kalimantan, Indonesia. Sampling was performed once within two weeks in the beginning of dry season. CO2 flux was significantly promoted by lowering soil moisture and pH. The result suggests that oxidative peat decomposition was enhanced in drier position, and the decomposition acidify the peat soils. CH4 flux was significantly promoted by a rise in groundwater level, suggesting that methanogenesis was enhanced under anaerobic condition. N2O flux was promoted by increasing soil nitrate content in DF, suggesting that denitrification was promoted by substrate availability. On the other hand, N2O flux was promoted by lower soil C:N ratio and higher soil pH in DBL and UDF. CO2 flux was the highest in DF (241 mg C m(-2) h(-1)) and was the lowest in DBL (94 mg C m(-2) h(-1)), whereas CH4 flux was the highest in DBL (0.91 mg C m(-2) h(-1)) and was the lowest in DF (0.01 mg C m(-2) h(-1)), respectively. N2O flux was not significantly different among land uses. CO2 flux relatively contributed to 91-100% of GWP. In conclusion, it is necessary to decrease CO2 flux to mitigate GWP through a rise in groundwater level and soil moisture in the region.
Rights: © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
http://creativecommons.org/licenses/by/4.0/
Type: article
URI: http://hdl.handle.net/2115/73072
Appears in Collections:農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 波多野 隆介

Export metadata:

OAI-PMH ( junii2 , jpcoar_1.0 )

MathJax is now OFF:


 

 - Hokkaido University