Peer-reviewed Journal, Data, Book/Technical chapter, and Proceedings

• Lai, C., S. Hin, P. Ket, J. Chaiwanon, A. Degré, V. Ann, 2026. Combined Effects of Biochar and Chemical Fertilizers on Rice Yield, Quality, and Nutrient Loss in Cambodian Soils Under Various Irrigation Methods. Journal of Soil Science and Plant Nutrition. In Press. 

• Sinh, S., Q. V. Pham, L. A. T. Le, R. Puga Freitas, A. Repellin, V. Ann, N. Bottinelli, P. Jouquet, 2025. Water levels more than earthworms impact rice growth and productivity. A greenhouse study. Agronomy, 15:1245. https://doi.org/10.3390/agronomy15051245

• Sao, S., S. Praise, M. Nishiyama, V. Ann, L. D. Phung, T. Watanabe, 2025. Response of bacterial communities and soil chemistry to flood durations and recovery phases. Environmental Science and Pollution Research, 32:9429–9442

• Muon, R., R. Zaiss, C. Lao, V. Ann, P. Jouquet, 2024. Utilisation of IGN historical aerial photographs and Google Earth for measuring the evolution of termite lenticular mound abundance in paddy fields in Cambodia. Soil Use and Management, 40:e13128 

• Lai, C., R. Muon, V. Touch, S. Hin, P. Podwojewski, P. Ket, P. Jouquet, A. Degré, V. Ann, 2024. Impact of biochar from rice husk on nutrient distribution and rice growth and yield: A soil column experiment. Journal of Soil Science and Plant Nutrition, 24:159–171 

• Ge, G., P. Mouquet, C. Révillion, D. Bouche, H. Kheang, V. Ann, V. Herbreteau, 2024. Sen2extract @ KHEOBS: Access Sentinel-2 indices time series within a few clicks. KHmer Earth OBServation (KHEOBS) Day 2024, Phnom Penh, Cambodia. https://ird.hal.science/ird-05138684v1.

• Yorngsok, C., M. Soy, S. Khim, V. Bousquet, V. Ann, V. Herbreteau, 2024. GeoCambodia: A web application to visualize Cambodia Then and Now. KHmer Earth OBServation (KHEOBS) Day 2024, Phnom Penh, Cambodia. https://ird.hal.science/ird-05138742v1.

• Sao, S., V. Ann, M. Nishiyama, S. Praise, T. Watanabe, 2023. Tracing the pathways by which flood duration impacts soil bacteria through soil properties and water-extractable dissolved organic matter: A soil column experiment. Science of the Total Environment, 902:166524  

• Muon, R., P. Ket, D. Sebag, H. Aroui, P. Podwojewski, V. Hervé, V. Ann, P. Jouquet, 2023. The importance of bioturbation by termites in Cambodian paddy fields varies with the amount of sand in soil. Geoderma Regional, 33:e00640 

• Muon, R., C. Lai, V. Hervé, R. Zaiss, F. Chassagne, E. Bureau-Point, S. Marchand, M. Audibert, J. Berger, F. Wieringa, A. Savoure, K. Sok, J.-D. Meunier, V. Ann, P. Jouquet, 2023. Perceptions and utilizations of termite mounds in Cambodia. Soil Use and Management, 1–13

• Heu, R., M.P. Wai, S. Siev, V. Chem, K. E. Eang, V. Ann, M. Ateia, C. Yoshimura, 2023. Dissolved Silicon in Lake-floodplain System: Dynamics and Role in Primary Production. Science of the Total Environment, 861:160696

• Teck, V., A. Poortinga, C. Riano, K. Dahal, R. M. B.  Legaspi, V. Ann, R. Chea, 2023. Land use and land cover change implications on agriculture and natural resource management of Koah Nheaek, Mondulkiri province, Cambodia. Remote Sensing Applications: Society and Environment, 29:100895

• Ann, V., A. M. Romaní, A. Butturini, 2022. Estimating the hydraulic conductivity in river unconsolidated sediments. A critical analysis of several grain-size empirical approaches. Serie Correlación Geológica, 38:15 - 25

• Ann, V., P. Ung, C. Peng, M. Fujii, Y. Tanji, K. Miyanaga, 2022. Bacterial communities: Their dynamics and interactions with physicochemical factors. In: Yoshimura, C., Khanal, R., Uk, S. (eds). Water and Life in Tonle Sap Lake. Springer, Singapore. pp 275–283. https://doi.org/10.1007/978-981-16-6632-2_27  

• Nakatani, K., K. Nasukawa, T. Kikuchi, M. Fujii, K. Miyanaga, Y. Tanji, V. Ann, 2022. Microcystin Production and Oxidative Stress. In: Yoshimura, C., Khanal, R., Uk, S. (eds). Water and Life in Tonle Sap Lake. Springer, Singapore. pp. 285-293. https://doi.org/10.1007/978-981-16-6632-2_28

• Lai, C., N. Ly, V. Touch, S. Hin, P. Podwojewski, P. Ket, P. Jouquet, A. Degré, V. Ann, 2022. Evaluating the Effect of Biochar on Nutrient Leaching and Rice Growth in Disturbed and Undisturbed Soil Columns. Biology and Life Sciences Forum, 16:5. https://doi.org/10.3390/IECHo2022-12497  

• Jouquet, P., A. Harit, C. Tiago, D. Donoso, H. F. da Cunha, D. Eldridge, C. Choosai, J-L. Janeau, J. van Thuyne, A. Maingan, O. P.  Pinzon Florian, O. Malam Issa, M. Labiadh, R. Muon, V. Ann, S. Cheik, S. Fall, S. Traoré, T. Chouvenc, T. Tran Minh, A. Auclerc, H. Huot, D. Sillam-Dussès, S. Dupont, 2021, "Dataset describing soil sheeting properties produced by termites sampled in 21 countries from 2015 to 2020," https://doi.org/10.23708/K4QOFS, DataSuds, V1, UNF:6:nc+mT0afNrDnA8oV7RveEQ== [fileUNF]

• Zaiss, R., R. Muon, V. Ann, P. Jouquet, 2022, "Orthomosaic of aerial photographs acquired by IGN in 1953, Stung Chrey Bak Catchment, Cambodia," https://doi.org/10.23708/HAYFVO, DataSuds, V1.

• Jouquet, P., A. Harit, V. Hervé, H. Roger, T. Carrijo, D. A. Donoso, D. Eldridge, H. Ferreira da Cunha, C. Choosai, J.-L. Janeau, J.-L. Maeght, Thuy Doan Thu, A. Briandon, M. Dahbi Skali, John van Thuyne, A. Mainga, Olga Patricia Pinzon Florian, Oumarou Malam Issa, P. Podwojewski, J.-L. Rajot, T. Henri-des-Tureaux, L. Smaili, M. Labiadh, H. Aroui Boukbida, R. Shanbhag, R. Muon, V. Ann, S. Cheik, S. Fall, S. Traoré, S. Dupont, T. Chouvenc, A. J. Mullins, S. Syaukani, R. Zaiss, Tran Minh Tien, J. Šobotník, A. Auclerc, R. Qiu, Y.-T. Tang, H. Huot, D. Sillam-Dussès, N. Bottinelli, 2022. Before being explained by their feeding and building strategies, termite's impact on soil sheeting properties is explained by their environment. Geoderma, 412: 115706

• Jouquet, P., R. Muon, C. Choosai, H. Aroui, N. Bottinelli, S. Cheik, A. Harit, J.-L. Janeau, P. Sisouvanh, P. Ket, B. Ty, V. Ann, 2021. Termites promote resource patchiness in Asia and constitute a model for achieving the sustainable development goals. In: FAO. Keep soil alive, protect soil biodiversity: Global Symposium on Soil Biodiversity 19–22 April 2021. Proceedings. Rome; pp. 365-369. https://doi.org/10.4060/cb7374en

• Jouquet, P., V. Ann, C. Choosai, 2021. Bioturbation and ecosystem services in agroecosystems. In: Atta-Krah K., Chotte J.-L., Gascuel C., Gitz V., Hainzelin E., Hubert B., Quintero M. and Sinclair F. (coord). Agroecological transformation for sustainable food systems: insight on France-CGIAR research. Les dossiers d'Agropolis International; 26, p. 128. [En], [Fr]

• Rumpel, C., V. Ann, H. Bahri, M. Calabi Floody, S. Cheik, T.T. Doan, A. Harit, J.L. Janeau, P. Jouquet, M.L. Mora, P. Podwojewski, T.T. Minh, Q.A. Ngo, P.L. Rossi, M. Sanaullah, 2020. Research for development in the 21st century. Geoderma, 378: 114558        

• Ung, P., R. Tan, V. Ann, C. Peng, M. Fujii, K. Miyanaga, Y. Tanji, 2020. Microbial risks due to pollution and degradation of water quality in Tonle Sap Lake. In: Binaya Raj Shivakoti and Pham Ngoc Bao (eds). Environmental Changes in Tonle Sap Lake and Its Floodplain: Status and Policy Recommendations. IGES, Tokyo Tech and ITC. Technical Report; pp. 51-64   

• Siev, S., V. Ann, T. Nakamura, H. Fujii, C. Yoshimura, 2020. Flood mapping under an extreme event in a large shallow lake influenced by flood pulse in Southeast Asia. E3S Web of Conferences, 148: 06004. 5-7 November 2019, Oral Presentation in the 6th ETMC in conjunction with the 12th AUN/SEED-Net (RC EnvE), Bali · Indonesia

• Ung, P., C. Peng, S. Yuk, R. Tan, V. Ann, K. Miyanaga, Y. Tanji, 2019. Dynamics of Bacterial Community in Tonle Sap Lake, a Large Tropical Flood-pulse System in Southeast Asia. Science of the Total Environment, 664: 414-423

• Ann, V., A. Freixa, A. Butturini, A. M. Romaní, 2019. Interplay between sediment properties and stream flow conditions influences surface sediment organic matter and microbial biomass in a Mediterranean river. Hydrobiologia, 828: 199-212 14-17 July 2017, Oral Presentation in the 1st EEPSB&R, Guilin · China

• Ung, P., C. Peng, S. Yuk, V. Ann, H. Mith, R. Tan, K. Miyanaga, Y. Tanji, 2018. Fate of Escherichia coli in dialysis device exposed into sewage influent and activated sludge. Journal of Water and Health, 16: 380-390

• Sinh, S., B. Yen, R. Muon, R. Puga Freitas, K. Sok, A. Repellin, V. Ann, N. Ly, N. Bottinelli, P. Jouquet. Agronomic and socio-economic assessments of the role of bioturbation in paddy fields. Submitted to Applied Soil Ecology, March 2026. 

• Sinh, S., S. Khan, R. Muon, A. Repellin, S. Loek, N. Ly, V. Ann, P. Ket, K. Sok, N. Bottinelli, P. Jouquet, R. Puga-Freitas. Integrating soil bioturbation and water‑saving irrigation in contrasting paddy soils: implications for rice physiology and productivity. Submitted to Plant and Soil, February 2026. 

• Sao, S., L. D. Phung, M. Nishiyama, S. Praise, K. Hamagami, K. Watanabe, V. Ann, T. Watanabe. Drivers of Dissolved Organic Matter and Bacterial Communities in Floodplain Soil Amid Repeated Floods. Submitted to Journal of Soil Science and Plant Nutrition, January 2026.

• Sinh, S., R. Puga Freitas, R. Muon, K. Sok, A. Repellin, V. Ann, B. Yen, N. Ly, N. Bottinelli, P. Jouquet. Exploring heterogeneity in paddy fields at catchment scale. Does termite bioturbation matter? Submitted to Agronomy for Sustainable Development, October 2025. 

Conference, Symposium, Joint Seminar, and Workshop

• Hostache, R., C. Alexandre, C. Heng, T. Catry, V. Herbreteau, V. Ann, C. Révillion, C. Delenne. "A fully automatic processing chain for the systematic monitoring of surface water using Copernicus Sentinel 1 satellite data: first results of the SCO-CASCADES project," Oral Presentation; the EGU General Assembly 2026, Vienna · Austria. 3-8 May 2026.

• Heng, C., T. Catry, V. Herbreteau, V. Ann, R. Hostache. "Long-term flood monitoring system using Synthetic Aperture Radar (SAR) imagery in tropical climate region: Cambodia as a test case," Oral Presentation; Cambodia GeoSpatial Day 2025, Phnom Penh · Cambodia. 18 November 2025.

• Sao, S., V. Ann, M. Nishiyama, S. Praise, T. Watanabe. “Linkages among Soil Property, Water-Extractable Organic Matter, and Bacterial Community under Different Flood Duration: A Soil Column Experiment,” Oral presentation; 9th IWA-ASPIRE Conference & Exhibition 2023 Kaohsiung · Taiwan. 22-26 October 2023. 

• Sao, S., V. Ann, S. Praise, M. Nishiyama, T. Watanabe. “Effect of Flood Duration on Quality of Water in Floodplain Soil: A Column Study,” Short Oral Presentation; The Water and Environment Technology Conference; This Conference was held online. 8-9 July 2023.

• Soy, M., S. Sath, R. Muon, S. Seang, K. Kret, V. Ann, P. Jouquet, R. Zaiss. "Use of historical aerial photographs for land use mapping in Stung Chrey Back catchment between 1952-1972," Poster Presentation; The 12th Scientific Day, Phnom Penh · Cambodia. June 8-9, 2023.

• Heng, S., C. Heng, V. Veth, V. Theng, D. Sang, V. Herbreteau, V. Ann. "Assessing the seasonal variability of water quality, human disturbance, and bioclimatic variables in the Lower Mekong Basin." Poster Presentation; The 12th Scientific Day, Phnom Penh · Cambodia. June 8-9, 2023.

• Ann, V, 2022. "Strengthening the Use of Earth Observation in Cambodia for Hydrological and Environmental Sustainability," Oral Presentation; Seminar on Sustainable Development: Sustainable City, Smart City, Phnom Penh· Cambodia. August 18, 2022. 

• Muon, R., C. Lai, E. Bureau-Point, F. Chassagne, F. Wieringa, J. Berger, K. Sok, M. Audibert, P. Podwojewski, S. Marchand, V. Ann, P. Jouquet. “Termite mounds in Cambodian paddy fields. Are they always kept for improving soil quality?” Short Oral Presentation; the EGU22 General Assembly, Vienna · Austria. 23-27 May 2022, EGU22-55, https://doi.org/10.5194/egusphere-egu22-55.

• Muon, R., H. Aoui Boukbida, J-L. Janeau, B. Ty, P. Ket, V. Ann, P. Jouquet. “Paddy fields as heterogeneous landscapes in Cambodia: termite mound distribution and impact on soil physical and chemical properties,” Oral Presentation; 6th Nereis Park International Conference Bioturbation Thematic School, Brittany· France. 23 - 28 August 2022.

• Jouquet, P., R. Muon, C. Choosai, H. Aroui, N. Bottinelli, S. Cheik, A. Harit, J.-L. Janeau, P. Sisouvanh, P. Ket, B. Ty, V. Ann. Termites promote resource patchiness in Asia and constitute a model for achieving the sustainable development goals. In: FAO. Keep soil alive, protect soil biodiversity: Global Symposium on Soil Biodiversity 19–22 April 2021. Proceedings. Rome; pp. 365-369.” Oral Presentation; Global Symposium on Soil Biodiversity - GSOBI21 held virtually.

• Khanal, R., Q. G. Pham, B. K. Mishra, R. Sith, S. Siev, V. Boonyaroj, V. Ann, V. Khov, J. Garcia-Hernandez. “Comparison of coral bleaching hotspot mapping in Southeast Asia (Thailand, Cambodia and Vietnam) based on sea surface temperature modelling by National Oceanic and Atmospheric Administration Coral Reef Watch before and during Covid-19 Pandemic,” Oral Presentation; The 13th AUN/SEED-Net Regional Conference on Chemical Engineering 2020 (RCChE-2020) jointly held with the 5th International Symposium on Conservation and Management of Tropical Lakes, held virtually from February 4-5, 2021.

• Phoeuk, S., P. Ung, B. Ty, V. Ann. “Microbial colonization distribution in a large tropical flood pulse ecosystem - Tonle Sape Lake, Cambodia.” Poster Presentation; The 4th International Symposium on Conservation and Management of Tropical Lakes, Phnom Penh · Cambodia. 16 – 18 September 2019.

• Ung, P., T. Chanto, S. Un, S. Kong, S. Sann, V. Ann, R. Tan, K. Miyanaga, Y. Tanji. “Status of biological water quality of main river connected to Tonle Sap lake.” Conference Paper; 17th World Lake Conference, 400-402. Lake Kasumigaura, Ibaraki· Japan. 14 - 20 October 2018.

• Miyanaga, K., P. Ung, C. Peng, S. Yuk, V. Ann, R. Tan, Y. Tanji. “Analyses of microbial consortia in water and sediment samples of Tonle Sap lake.” Conference Paper; 17th World Lake Conference, 1165-1167. Lake Kasumigaura, Ibaraki· Japan. 14 - 20 October 2018.

• Ann, V., P. Ung, S. Uk, S. Siev, D. Kodikara, S. Hul, R. Khanal, R. Tan, C. Peng, S. Yuk, S. Sann, K. Miyanaga, M. Fujii, C. Yoshimura, Y. Tanji. “Relationship between microbial communities and water quality in a large tropical lake.” Conference Paper; The 11th Regional Conference on Environmental Engineering 2018 jointly held with the 3rd International Symposium on Conservation and Management of Tropical Lakes, Phnom Penh· Cambodia. 27 - 28 September 2018.

• Ann, V., P. Ung, S. Uk, S. Siev, B. Ty, R. Tan, S. Hul, K. Miyanaga, M. Fujii, C. Yoshimura, Y. Tanji. “Microbial colonization distribution in a large tropical flood-pulse ecosystem - Tonle Sap Lake.” Oral Presentation; The 3rd Joint Seminar of SATREPS, Phnom Penh· Cambodia. 13 September 2018.

• Tanji, Y., C. Yoshimura, K. Miyanaga, M. Fujii, V. Ann, K. Nasukawa. “Spatial distribution of Cyanotoxin concentration in Tonle Sap Lake.” Oral Presentation; The 2nd Joint Seminar of SATREPS, Phnom Penh· Cambodia. 5 March 2018.

• Ung, P., C. Peng, S. Yuk, V. Phoeurn, V. Ann, H. Mith, R. Tan, K. Miyanaga, Y. Tanji. “Primary Study on Microbial Consortia in the Tonle Sap Lake Water.” Conference Paper; The 2nd International Symposium on Conservation and Management of Tropical Lakes, Siem Reap· Cambodia. 24 - 26 August 2017.

• Ann, V., S. Hul, P. Ung. “Factors determining phytoplankton biomass along the Tonle Sap River.” Oral Presentation; The 1st Joint Seminar of SATREPS, Phnom Penh · Cambodia. 20 - 21 March 2017.

• Ann, V., P. Ung. “Fate of Staphylococcus aureus in wastewater treatment plant.” Oral Presentation; Joint Workshop in the Training Course of SATREPS, Tokyo· Japan. 30 November 2016.

• Fujii, M., H. Matsumae, C. Yoshimura, Y. Tanji, K. Miyanaga, V. Ann. “Cyanobacterial toxin production in freshwater lakes and its relation with water and environmental parameters.” Oral Presentation; The 1st Symposium on Tonle Sap Water Environment, Phnom Penh· Cambodia. 26 - 27 August 2016.

• Ann, V., A. Freixa, A. Butturini, A. M. Romaní. “How do sediment physical characteristics affect microbial biomass in a Mediterranean river?” Poster Presentation; The 2015 ASLO Aquatic Sciences Meeting, Granada· Spain. 22 - 27 February 2015.

• Hul, S., S. In, V. Ann, V. Leng, Z. Suif, C. Yoshimura. “Concerns of Mekong River and Tonle Sap water source quality of Phnom Penh Water Supply Authority, Cambodia.” Oral Presentation; Seminar of the JSPS Mega Delta Project, Cantho· Vietnam. 15 - 17 August 2013.

• Ann, V., A. Freixa, A. Guarch, E. Ejarque, A. Butturini, A. M. Romaní. “Microbial processes across the dry-wet hyporheic boundary in a Mediterranean river.” Poster Presentation; The 8th Symposium for European Freshwater Sciences, Münster· Germany. 1 - 5 July 2013.

• Ann, V. “Hydrological modeling of Pursat sub-basin in Cambodia by using SWAT model.” Poster Presentation; The 3rd International Symposium on Sustainable Development in the Mekong River Basin, Khon Kaen · Thailand. 11 - 12 September 2008.