Transcript PPT - 3.82MB - Project : Agricultural Groundwater Use in

Adaptation to climate
change in Laos:
A review of activities conducted by the International
Water Management Institute (IWMI)
Guillaume Lacombe, Dalaphone Sihanath, Anousith Keophoxay,
Somphasith Douangsavanh, Paul Pavelic
Mobilizing Science for climate change, agriculture and food security: engaging
the media in Lao PDR, 29-30 Apr 2015, Vansana Hotel, Vientiane, Lao PDR
Floods and drought - manifestation of
water resources variability
TOO LITTLE…
…TOO MUCH
Water storage continuum
Source: McCartney and Smakhtin 2010
Livelihoods from agricultural dug wells in
Vientiane province
Rising well numbers in B. Ekxang
Incomes from watermelon farming
Season Number of
fruits sold
2014
5,000
2015
6,600
Expenditures
in million Kip
3.8
6
Revenue in
million Kip
35*
25
Profit gained in
million Kip
31.2
19
Projects: CCAFS flagship 1 (climate-smart agriculture
practices)
• 1.1: Integrated technologies and
practices
 To enhance capacity to adapt to CC
through the development of
technologies
• 1.3: Upscaling technologies
To promote and disseminate those
technologies from village to national
levels
Example: roof-top rainwater harvesting
• Storing rainwater for small-scale
irrigation in the context of:
• Increased rainfall variability (inter-seasonal
and inter-annual)
• Greater food demand (dry season)
• Increased scarcity and degraded quality of
alternative water resources
• A water-smart technology
• Limitation of GHG emissions,
• Integrative technology
Rooftop rainwater harvesting
• Successful in Thailand or Vietnam but still in its infancy in Laos
The Thai Rainwater Jar Programme
Northern Vietnam and Mekong Delta
Several constrains require optimal design:
• Several constrains
•
•
•
•
Poverty of populations, cost of infrastructures,
Lack of legislation, education, information,
Problems of contamination (roof, tank, mosquitos, bacteria)
Availability of materials
• Need to design technology based on goals and needs
• To map potential across Mekong Basin
• To determine optimal storage volume of the tank depending on:
• Cost, water demand, objectives of vegetable production
• To provide support/capacity building
Thank you for your attention…
Ban Phailom, Savannakhet Province
January 2015