Simulating and modeling CO2 flux emitted from decomposed oil palm root cultivated at tropical peatland as affected by water content and residence time
Determining the oil palm dead roots contribution to total (Rt) and heterotrophic (Rh) respiration as a source of greenhouse gas/GHG emission in tropical peatland is urgently required, as well as predicting their magnitude to cope with difficulties of direct in-situ measurement. This study is designe...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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University of Brawijaya
2022-07-01
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| Series: | Journal of Degraded and Mining Lands Management |
| Subjects: | |
| Online Access: | https://jdmlm.ub.ac.id/index.php/jdmlm/article/view/1197 |
| _version_ | 1811327684568940544 |
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| author | Heru Bagus Pulunggono Syva Fitriana Desi Nadalia Moh Zulfajrin Lina Lathifah Nurazizah Husni Mubarok Nizam Tambusai Syaiful Anwar Supiandi Sabiham |
| author_facet | Heru Bagus Pulunggono Syva Fitriana Desi Nadalia Moh Zulfajrin Lina Lathifah Nurazizah Husni Mubarok Nizam Tambusai Syaiful Anwar Supiandi Sabiham |
| author_sort | Heru Bagus Pulunggono |
| collection | DOAJ |
| description | Determining the oil palm dead roots contribution to total (Rt) and heterotrophic (Rh) respiration as a source of greenhouse gas/GHG emission in tropical peatland is urgently required, as well as predicting their magnitude to cope with difficulties of direct in-situ measurement. This study is designed to simulate the CO2 flux emitted from oil palm dead roots/Rdr in tropical peatland as affected by water content/WC and residence time/RT. The dead oil palm roots were cleaned, treated with control/15, 100, 150, 300, and 450%WC, and then incubated for three months. CO2 flux measurement, C, N, and CN ratio determination were conducted every month. This study demonstrated the importance Rdr among other CO2 emission sources, ranging from 0.05-2.3 Mg CO2 ha-1 year-1 with an average of 0.7 Mg CO2 ha-1 year-1. Rdr contribution for literature Rt and Rh were around 0.3 to 1.3 and 0.9 to 3.5%, respectively. As a product of microbial respiration, Rdr was affected by WC and RT, supported by analysis of variance, linear mixed effect model/REML, and multivariate analysis. 100-150%WC resulting in significant and highest Rdr, whereas the increase (300-450%WC) or decrease (15%WC) would generate lower emission. Rdr culminated in the first month after incubation; meanwhile, it declined in the following months. This study also emphasized non-linear relationships between CO2 flux and other root properties, which can be modeled conveniently using non-linear approach, particularly using polynomial and artificial intelligence-based models. The simulation presented in this study served as an initial attempt to separate Rdr from Rh, as well as to predict CO2 flux with reasonable accuracy and interpretable methods. |
| first_indexed | 2024-04-13T15:12:27Z |
| format | Article |
| id | doaj.art-7f5d4403f2d548fb88bc8f95e9556bfa |
| institution | Directory Open Access Journal |
| issn | 2339-076X |
| language | English |
| last_indexed | 2024-04-13T15:12:27Z |
| publishDate | 2022-07-01 |
| publisher | University of Brawijaya |
| record_format | Article |
| series | Journal of Degraded and Mining Lands Management |
| spelling | doaj.art-7f5d4403f2d548fb88bc8f95e9556bfa2022-12-22T02:41:59ZengUniversity of BrawijayaJournal of Degraded and Mining Lands Management2339-076X2022-07-01943663367610.15243/jdmlm.2022.094.3663431Simulating and modeling CO2 flux emitted from decomposed oil palm root cultivated at tropical peatland as affected by water content and residence timeHeru Bagus Pulunggono0Syva Fitriana1Desi Nadalia2Moh Zulfajrin3Lina Lathifah Nurazizah4Husni Mubarok5Nizam Tambusai6Syaiful Anwar7Supiandi Sabiham8Department of Soil Science and Land Resource, Faculty of Agriculture, IPB UniversityGraduate Program of Soil Science and Land Resources Department, Faculty of Agriculture, IPB UniversityDepartment of Soil Science and Land Resource, Faculty of Agriculture, IPB UniversityGraduate Program of Soil Science and Land Resources Department, Faculty of Agriculture, IPB UniversityGraduate Program of Agronomy and Horticulture Department, Faculty of Agriculture, IPB University, 16680, West Java, IndonesiaAgronomy Research, Astra Agro Lestari Tbk, Jakarta, IndonesiaAgronomy Research, Astra Agro Lestari Tbk, Jakarta, IndonesiaDepartment of Soil Science and Land Resource, Faculty of Agriculture, IPB UniversityDepartment of Soil Science and Land Resource, Faculty of Agriculture, IPB UniversityDetermining the oil palm dead roots contribution to total (Rt) and heterotrophic (Rh) respiration as a source of greenhouse gas/GHG emission in tropical peatland is urgently required, as well as predicting their magnitude to cope with difficulties of direct in-situ measurement. This study is designed to simulate the CO2 flux emitted from oil palm dead roots/Rdr in tropical peatland as affected by water content/WC and residence time/RT. The dead oil palm roots were cleaned, treated with control/15, 100, 150, 300, and 450%WC, and then incubated for three months. CO2 flux measurement, C, N, and CN ratio determination were conducted every month. This study demonstrated the importance Rdr among other CO2 emission sources, ranging from 0.05-2.3 Mg CO2 ha-1 year-1 with an average of 0.7 Mg CO2 ha-1 year-1. Rdr contribution for literature Rt and Rh were around 0.3 to 1.3 and 0.9 to 3.5%, respectively. As a product of microbial respiration, Rdr was affected by WC and RT, supported by analysis of variance, linear mixed effect model/REML, and multivariate analysis. 100-150%WC resulting in significant and highest Rdr, whereas the increase (300-450%WC) or decrease (15%WC) would generate lower emission. Rdr culminated in the first month after incubation; meanwhile, it declined in the following months. This study also emphasized non-linear relationships between CO2 flux and other root properties, which can be modeled conveniently using non-linear approach, particularly using polynomial and artificial intelligence-based models. The simulation presented in this study served as an initial attempt to separate Rdr from Rh, as well as to predict CO2 flux with reasonable accuracy and interpretable methods.https://jdmlm.ub.ac.id/index.php/jdmlm/article/view/1197artificial intelligencedead rootgreenhouse gasincubation timerespiration |
| spellingShingle | Heru Bagus Pulunggono Syva Fitriana Desi Nadalia Moh Zulfajrin Lina Lathifah Nurazizah Husni Mubarok Nizam Tambusai Syaiful Anwar Supiandi Sabiham Simulating and modeling CO2 flux emitted from decomposed oil palm root cultivated at tropical peatland as affected by water content and residence time Journal of Degraded and Mining Lands Management artificial intelligence dead root greenhouse gas incubation time respiration |
| title | Simulating and modeling CO2 flux emitted from decomposed oil palm root cultivated at tropical peatland as affected by water content and residence time |
| title_full | Simulating and modeling CO2 flux emitted from decomposed oil palm root cultivated at tropical peatland as affected by water content and residence time |
| title_fullStr | Simulating and modeling CO2 flux emitted from decomposed oil palm root cultivated at tropical peatland as affected by water content and residence time |
| title_full_unstemmed | Simulating and modeling CO2 flux emitted from decomposed oil palm root cultivated at tropical peatland as affected by water content and residence time |
| title_short | Simulating and modeling CO2 flux emitted from decomposed oil palm root cultivated at tropical peatland as affected by water content and residence time |
| title_sort | simulating and modeling co2 flux emitted from decomposed oil palm root cultivated at tropical peatland as affected by water content and residence time |
| topic | artificial intelligence dead root greenhouse gas incubation time respiration |
| url | https://jdmlm.ub.ac.id/index.php/jdmlm/article/view/1197 |
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