Standardization of a vessel and waterway classification in the Mekong River Basin

The "Standardize vessel and waterway classifications" is to update and harmonize different standards, rules, and regulations to uniform common standards for the development and liberalization of waterway transport on the Mekong River System. It involves analyzing technical and operational criteria for vessel classification and proposing standardized either one waterway classifications for the whole Mekong River Basin or two classifications for the upper and lower parts. It develops a proposal for waterway classification for each stretch of the Mekong River, its tributaries, and canals. In addition, a comprehensive set of regulations for vessel and waterway classification in the Mekong River Basin is prepared for implementation in the four MRC Member Countries.

Technical Report – Phase 1 of the Joint study on the Changing Patterns of Hydrological Conditions of the Lancang-Mekong River Basin and Adaptation Strategies

This is the 1st phase report of the Joint Study on the Changing Pattern of Hydrological Conditions of the Lancang-Mekong River Basin and Adaptation Strategies, conducted by the MRC and LMC Water Center. The report identifies two key factors that contribute to hydrological changes in the LMB. First are natural factors, including precipitation patterns, evaporation rates, soil properties and topography. Second are human activities, such as infrastructure development, water management, land cover and land-use changes. These two factors interact and influence the amount, timing and water distribution within the Basin.

Enhancing the MRC Land Use and Land Cover 2020 Mapping Products

This report summarizes the process starting from the background of the project, field data collection, and most importantly, the process of applying the Earth Observation technology via machine learning using the Google Earth Engine platform and the approach agreed by the expert group from the Member Countries to update the land cover and land use map of 2020 for the Lower Mekong Basin region.

Guidance for Improving Irrigation Systems to Address Climate Change and Food Security

This guidance gives a preliminary guidance for applicable irrigation techniques and technologies in the Lower Mekong Basin (LMB). This guidance was developed for the MRC Member Countries to use for mitigating impacts of climate change and natural disasters, addressing problems in irrigation sector, and improving irrigation systems in the LMB. This guidance also indicates the defects of irrigation techniques and technologies being utilized in the LMB and suggests where improvements could be made for better utilization.

The status and trends of riverine plastic pollution in the Lower Mekong River Basin

This report explains the status and trends of plastic waste pollution in the Lower Mekong River Basin from the perspectives of plastic pollution itself as well as the frameworks and capacity of each Member Country to address the issues of plastic pollution. The report estimates that in 2020, its four countries had produced about 8 million tons of plastic waste – of which, some 70% to 90% were plastic bottles, plastic bags and Styrofoam. Yet this debris does more than adversely affect the Mekong and its tributaries.

Joint Environmental Monitoring Programme at Two Mekong Mainstream Dams: The Don Sahong and Xayaburi Hydropower Projects

The report provides an overview of activities conducted and resulting recommendations from monitoring two mainstream dams: Don Sahong and Xayaburi hydropower projects. It summarizes the pilot monitoring results from the first pilot site report for each hydropower project and the Combined Annual Report in a way that illustrates how findings in hydrology, sediment, water quality, aquatic ecology, and fisheries can be interpreted together. Based on the findings, it provides some initial suggestions for mitigation and adaptive management of construction and operation of hydropower projects. It also concludes with recommendations for revisions to the guidelines and monitoring protocols that can then be incorporated into the JEM Programme document.

Mekong Low Flow and Drought Conditions in 2019–2021

Conditions in 2019–2021: Hydrological Conditions in the Lower Mekong River Basin (Technical Report)

This technical report unravels the underlying drivers of the extremely low flows and drought based on an analysis of the available data the MRC has collected. Based on the findings, it suggests potential measures to address and mitigate the impacts of the hydrological droughts and storage on the Basin’s people.

Annual Mekong Hydrology, Flood and Drought Report 2019: Drought in the Lower Mekong Basin

This paper reports on the condition of the Basin in 2019, including its hydrology/water flow, flood and drought. The year saw recorded unprecedented flow conditions in the Mekong mainstream and from tributaries. Erratic climatic fluctuations were also found, ranging from extreme dry to extreme wet within short periods of time. The report ends with key recommendations, looking forward.

2018 Lower Mekong Water Quality Monitoring Report

This reports on the results of the monitoring of water quality across 48 stations in the LMB. The report shows the water quality in the Mekong and Bassac Rivers was still of good quality with the slight improvement compared with 2016. There was only a small number of measurements of chemical oxygen demand (COD) and dissolved oxygen (DO) that violated the MRC Water Quality Guidelines for the Protection of Human Health (WQGH) and the MRC Water Quality Guidelines for the Protection of Aquatic Life (WQGA). Most exceedances were recorded in the Delta. Of a slight concern was the DO level at Chau Doc, which violated the WQGH for all sampling occasions causing water quality for the protection of human health to be downgraded from ‘good’ in 2017 to ‘moderate’ in 2018.