Table 1. Comparison of Kenyir Reservoir CH₄ and CO₂ emissions with global Reservoirs.

References	Region	Reservoir	Country	Latitude	Age during measurement year	Surface area km2	Diffusive flux CH4 mmol m−2 d−1	Diffusive flux CO2 mmol m−2 d−1	C emission Gg C yr−1
Huttunen et al. (2004)	Temperate	Reservoir Lokka	Finland	68°N	28	216-417	0.33–7.4	11–73	123
Huttunen et al. (2004)	Temperate	Reservoir Porttipahta	Finland	68°N	25	34–214	0.16–0.3	20–52	83.7
Roehm & Tremblay (2006)	Temperate	La Grande-2	Canada	54°N	26	2815	0–0.16	15 (1–148)	845.6
Roehm & Tremblay (2006)	Temperate	La Grande-3	Canada	54°N	21	2,536	9–34	325.9
Martinez-Cruz et al. (2020)	Temperate	Lake Dagow	Germany	53°N		0.24	2.3	6	0.02
Martinez-Cruz et al. (2020)	Temperate	Lake Stechlin	Germany	53°N	55	4.25	0.09	−5.5	−0.4
Brothers, Prairie & delGiorgio (2012)	Temperate	Eastmain-1	Canada	52°N	2	603	1.4	13.6
Descloux et al. (2017)	Temperate	Eguzon Reservoir	France	47°N	85	2.7	0.03–5.6		0.02
Demarty et al. (2009)	Temperate	Rivière-des-Prairies	Canada	46°N	79	42.3	0–0.4	15 (-5–213)	10.2
Samiotis et al. (2018)	Temperate	Polyfytos Reservoir	Greece	40°N	4	21.9	0–6.7	4.1–45.1	6.9
Samiotis et al. (2018)	Temperate	Ilarion Dam	Greece	40°N	42	74	0–11.6	1.1–41	25.6
Beaulieu et al. (2020)	Subtropical	Acton Lake	USA	40°N	59	2.4	9.3–18.3		0.2
McClure et al. (2018)	Subtropical	Falling Creek Reservoir	USA	38°N	117	0.119	0.7	−4.6–135	0.1
Bevelhimer et al. (2016)	Subtropical	Watts Bar Lake	USA	36°N	70	176	0.5	62.7	177.8
Bevelhimer et al. (2016)	Subtropical	Guntersville Lake	USA	36°N	73	279	1.3	40.8	185.0
Bevelhimer et al. (2016)	Subtropical	Fontana Lake	USA	36°N	68	43	0.4	22.6	15.7
Bevelhimer et al. (2016)	Subtropical	Hartwell Lake	USA	35°N	50	226	1.4	26.5	98.1
Bevelhimer et al. (2016)	Subtropical	Lake Allatoona	USA	34°N	63	49	11.7	54.8	46.5
Liu et al. (2016)	Subtropical	Ross Barnett Reservoir	USA	33°N	45	134		26.8	57.6
Chen et al. (2011)	Subtropical	Three Gorges Reservoir	China	31°N	5	1,080	0.34 ± 0.3	76 ± 10.8 (76–213)	1327.6
Xing et al. (2005)	Subtropical	Lake Donghu	China	31°N		19.03	1.5 ± 1.2	7.6 ± 3.6	2.5
Chanudet et al. (2011)	Tropical	Nam Ngum	Laos	19°N	39	350	0.1–0.6	−21.2 to −2.7	112.0
Deshmukh (2013)	Tropical	Nam Theun 2 Reservoir	Laos	18°N	3	450	0–157	68 ± 51	500.8
Chanudet et al. (2011)	Tropical	Nam Leuk	Laos	18°N	11	13	0.8–12	−11–38	6.6
Prasad et al. (2013)	Tropical	Dowleiswaram dam	India	17°N	24	70		10–473	47.2
Guérin et al. (2006)	Tropical	Petit-Saut Reservoir	France	5°N	9	365	4.6 ± 4.9 (0.1–7.7)	119 ± 98 (102–133)	708
Soued & Prairie (2020)	Tropical	Batang Ai Reservoir	Malaysia	1°N	33	68.4	0.03–3.7	−31–80	8.7
Guérin et al. (2006)	Tropical	Balbina	Brazil	2°S	16	2,360	2.1 ± 3 (0.31–21)	76 ± 46	2913
Paranaíba et al. (2021)	Tropical	Curuá-Una	Brazil	3°S	40	72	0.08–7	3.4–1612	107
Dos Santos et al. (2006)	Tropical	Tucurui	Brazil	4°S	9	2,430	0.002–180	10.4–3243	7606
Almeida et al. (2016)	Tropical	Ecological Station of Serido	Brazil	7°S	70	0.2	11.8 ± 4.1	0.04
Macklin et al. (2018)	Tropical	Palasari Reservoir	Indonesia	8°S	27	1	372	3.5
Guérin et al. (2006)	Tropical	Samuel	Brazil	9°S	17	559	5.0 ± 5.9	976 ± 1213	8,780
Teodoru et al. (2015)	Tropical	Cahora Bassa	Africa	16°S	39	2,675	0.08	−8.1	−347
Teodoru et al. (2015)	Tropical	Itezhi Tezhi	Africa	16°S	35	365	1.6	16.7	101
Paranaíba et al. (2021)	Tropical	Furnas Dam	Brazil	21°S	54	1,342	0.001–21.5	−36–90	117
Paranaíba et al. (2021)	Tropical	Funil Reservoir	Brazil	21°S	13	40	0.0002–2.1	−0.05–1.7	0.1
Paranaíba et al. (2021)	Tropical	Chapéu D’Úvas	Brazil	22°S	23	12	0.02–19	−26–32	1.3
This study	Tropical	Kenyir Reservoir	Malaysia	5°N	31	369	0.02–12.5	5.6–143.8	451.9