Check dam is the name of project works about engineering, traditional Miao is a slow water weir weir semi permanent type of weir type pigs. Using materials readily available locally, such as twigs, stones.Water or small flow down and locked in the area long enough to areas around will absorb to use. A restoration of degraded forest area forest development is enough to cause the moisture completely anew.To a high level enough to pull the water used in the canal in the dry season. The project works this is a trial project, Huai Hong khrai.)Chiang Mai and successful so as to other projects later
.In order to maintain the moisture of forest and water retention, the project was implemented. Weir slow water in upstream. 2 lines and to build understanding and correct. For project Fai slow water that we set up it was.In order to reduce the impact on the ecosystem, in the long run.
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