AI SearchMethane emission potential from eutrophic small pond systems (Record no. 75358)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 04358nas a2200457 a 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818154927.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 230712s2023 th u m rtt 000 a eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b12408633 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no.EV-23-15 |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Thant Zin Aung |
| 245 10 - TITLE STATEMENT | |
| Title | Methane emission potential from eutrophic small pond systems |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Pathum Thani, Thailand : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 2023 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 75 leaves : |
| Other physical details | ill. |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. EV-23-15 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Environmental Engineering and Management |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M. Eng.) - Asian Institute of Technology, 2023 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Greenhouse gases (GHGs) serve a major role in maintaining our earth{u2019}s climate condition by controlling the balance between incoming and outgoing radiation. However, recent increase in GHGs concentration has caused disruption in the earth{u2019}s energy balance and resulted in various Climate Change events. Among different GHGs{u2019} sources, eutrophicated small ponds (under 0.001 km2) emit significant amounts of methane into the air although they cover small surface area of the earth. However, research on methane emissions from these ponds (both natural and artificial) has not been extensively conducted and the understanding of different methane emission dynamics and mechanisms are still limited. Therefore, this study fulfills the current research gap by studying different methane emissions from eutrophic small ponds under various conditions (i.e., passive and disturbance) together with different water parameters. In this study, natural pond and constructed pond were observed to emit 6.65 (1.54 {u2013} 16.99) mg/m2.hr and 4.21 (0 {u2013} 15.09) mg/m2.hr of total methane flux under passive condition and 7636 (3856 {u2013} 11838) mg/m2.hr and 197 (0 {u2013} 415) mg/m2.hr of total methane flux under disturbance condition respectively. In terms of yearly emissions, the natural pond releases 18.06 kg CH4/year while the constructed pond generate 35.44 kg CH4/year into the atmosphere. Significant differences between passive and disturbed methane fluxes were observed in both natural and artificial ponds, indicating the importance of disturbance to methane emissions. It was also observed that the natural pond tends to be a more serious methane hotspot under disturbance condition due to higher methane flux release derived by thicker sediment layer in natural pond. In addition, this study observed the importance of seasonal/ temporal variations effect (precipitation and atmospheric temperature) on methane emissions and the potential role of different external factors (i.e., pond{u2019}s location, its nearby environment, and activities) on pond{u2019}s resistance against the effect of seasonal/temporal variations. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Greenhouse gases |
| General subdivision | Environmental aspects |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Methane |
| General subdivision | Environmental aspects |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Cruz, Simon Guerrero, |
| Relator term | Chairperson |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Ekbordin Winijkul, |
| Relator term | Examination committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Xue, Wenchao, |
| Relator term | Examination committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Loom Nam Khong Pijai (Greater Mekong Subregion) Scholarships, |
| Relator term | Scholarship Donor |
| 810 2# - SERIES ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Asian Institute of Technology. |
| Title of a work | Thesis ; |
| Volume/sequential designation | no. EV-23-15 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B19397">http://203.159.5.9/ait-thesis/detail.php?q=B19397</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b12408633 |
| b | mnait |
| c | m |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 250131 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 0 |
| Cataloger's initials, CIN (RLIN) | 230712 |
| First date, FD (RLIN) | m |
| -- | a |
| -- | m |
| -- | 0 |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 67-Electronic Resource |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 40-Archives |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 20-AIT Publication |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : - |
| CREATED | CREATED : 2023-06-07 |
| RECORD Id | RECORD # : i13455217 |
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| Barcode | Barcode : 30050211013163 |
| CREATED | CREATED : 2023-10-08 |
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| Barcode | Barcode : 30050121064538 |
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| Barcode | Barcode : 30050121064504 |
| CREATED | CREATED : 2024-04-22 |
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| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Total checkouts | Full call number | Date last seen | Price effective from | Koha item type | Barcode | Copy number | Cost, normal purchase price |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 18/08/2026 | AIT Thesis no.EV-23-15 | 18/08/2026 | 18/08/2026 | 67-Electronic Resource | |||||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 18/08/2026 | AIT Thesis no.EV-23-15 | 18/08/2026 | 18/08/2026 | 40-Archives | 30050211013163 | 1 | |||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | AIT Thesis no.EV-23-15 | 18/08/2026 | 18/08/2026 | 20-AIT Publication | 30050121064538 | 1 | 50.00 | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | AIT Thesis no.EV-23-15 | 18/08/2026 | 18/08/2026 | 20-AIT Publication | 30050121064504 | 2 | 50.00 |