Ecosystem-based flood and drought management in river basins

    Solution ID
    Description of solution
    Summary (Challenges; Objectives)

    Technical and capacity development measures are applied in watersheds threatened by climate change. Relevant professionals are supported in vulnerability assessments. Inclusion of population is ensured through the involvement in stakeholder platforms. Innovative EbA approaches like the “living weir” approach are based on local knowledge and initiatives and are implemented for demonstration purposes. Innovative technical methods, such as drones, were used to evaluate and monitor the project area before, during and after the activities. This approach recently received the International Drone Pioneer Award 2017 for visionary drone applications with global impact. Based on the experiences, EbA approaches are fed into the national level and education format. Challenges:<ul><li>Increasing floods and droughts cause damage and water scarcity.</li><li>Land use activities in river basins (rice, rubber, sugar cane) support land degradation causing soil and river bank erosion, sedimentation of grey infrastructure, increased risk of landslides, loss of biodiversity and water retention capacity.</li><li>Local water management institutions lack technical capacity and concepts to address such extreme events.</li><li>The population faces economic losses due to crop failure and loss of production in the fisheries sector. They are lacking water availability during dry season and face damages to their homes and fields in the rainy season.</li><li>Policy conflicts between different sectors and the absence of formal rules for urban planning are exacerbating the challenges.</li></ul>

    Technical characteristics

    It concerns 3 rivers basins

    Success factors / lessons learnt

    1) Environmental- Damages from floods and droughts to local communities, economy and ecology are reduced.- Sediments and nutrients are kept in agricultural relevant areas.- Water quality is improved.- Decentral and new habitats function as valuable biodiversity conservation areas, especially during dry season. 2) Social- Communities are more resilient to flashfloods during the rainy season. - The water from floods, which is retained in the landscape, increases water storage for consumption and irrigation during the dry season.- More water can be provided to more people and/or for more irrigated land.- between 780 more people in year and up to 15.000 more people in year 25.- 1,500 people have been reached directly and 4,500 indirectly by awareness raising and training, 530 officers have been trained in economic evaluation of EbA options. 3) Policies- DWR and RID as the main warer organizations are prioritizing EbA solutions in their policies and plans with an DWR investment of 535,000 EUR and RID investment of 20 million EUR.- The current government the National Council of Peace and Order announced upstream forest rehabilitation projects (about 7.520 ha) and soil erosion prevention projects (Vetiver grass will be planted on 1.080 km2)- Forest rehabilitation and vetiver grass planting will absorb up to 84.000 tons of CO2 per year.

    Limiting factors / lessons learnt

    - Different data, discharge, evaporation, humidity, temperature, etc., is owned by different institutions. Some of them do not share their data as they consider it a loss of power. This needs to be considered as early as possible. The project used drones for collect additional data on the river discharge.- Datasets were partly incomplete. The missing information does not allow to analyze and quantify certain effects, therefore the results of the assessments still include uncertainties.- Being seen as a local wisdom, these measures have the full support from the local community and are financed and implemented by local stakeholders. This has gained them a lot of attention and interests from Thai government institutions.- However, there is a lack of scientific backup. This leads to construction without proper planning and without coordination with the local water management institutions. In the past newly constructed weirs were built in wrong locations at the wrong time, underestimating the river flow during an early flood season , which caused damage or even destruction of the incomplete structures- Raising awareness on physical and socioeconomic impacts of climate change has increased the acceptance of EbA measures by local stakeholders. However, further knowledge is needed to erase belief on false effects of EbA measures and to convey to stakeholders in which locations EbA measures are feasible.- The river basin committees (RBCs) in different river basins were at very different stages at the beginning of the project. Some were fully established, which allowed easier communication with the local population as well as cooperation between local stakeholders, public sector and academia. Other RBCs had not held their first meeting when the projectstarted. Here local stakeholders took strong ownership over their water recourses, which allowed the project to progress while the RBC was still in the process of being established.- Tangible examples and good practices on EbA measures help relevant stakeholders to get a better understanding on EbA concepts and its benefits.- At the same time, EbA measures cannot simple be copied to other river basins and relevant people need to be made aware of the need for river basin-specific vulnerability assessments.- International institutions/ experts need to be aware about the knowledge management as well as learning structures of the local institutions and be willing to adapt their own approach accordingly. 

    Location Latitude
    16.4391000000
    Location Longitude
    102.8290000000
    Comment on location

    Khon Kaen Province de Khon Kaen Thailand | Huai Sai Bat River Basin in Khon Kaen Province, Tha Di and Lam Pha Chi River Basins in Nakhon Si Thammarat Province

    Keywords
    Ecosystem (s) impacted
    Rivers
    Hazard(s) concerned
    Droughts
    Other challenges
    Biodiversity
    Exposition
    Exposed assets
    Agriculture
    Is there population exposed?
    I don’t know
    Activity
    Are there jobs created in the nature-based sector?
    Don't know
    Are there new employments in tourism sector, sport activities or recreational activites ?
    No
    Are there new activities in the tourism sector , sport activities or recreational activites?
    No
    Are there new/traditional activities that increased?
    I don't know
    International classification
    Sustainable development goals addressed
    SDG6 – Clean Water and Sanitation
    Sendai Frameword priorities addressed
    Priority 2. Strengthening disaster risk governance to manage disaster risk
    Actors
    Who are the beneficiaries of the action
    The rural population
    Contact person
    Suthira Thonqkoa (Walailak University)
    Organizations involved in the implementation of the action

    Walailak UniversityKhon   Kaen UniversityDeutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbHSydro ConsultDepartment of Water Resources(DWR) of the Ministry of Natural  Resources  and  Environment  of  Thailand

    Temporal aspects
    Design life time of the action
    Don’t know
    Implementation time of the action
    Less than 2 years
    Financial aspects
    Comment

    185 000€ average for one river basin.

    Others
    Participatory process
    Yes
    Is it possible to transpose this action in a different context?
    Yes, it is easily transposable
    Risk reduction
    Feasibility
    Environment
    Society
    Economy
    185000.00