For example, an activity created slowing the water Weir. One of the principles in the conservation of forests is to make water acidic or fai fai to slow down moisture, which means that the construction barrier across the small river upstream areas or areas with high slope so that water pressure can slow the flow the flow is slow and entrapped sediment to the water basin into the lower steps. The category of fai fai-slow slow water or moisture. Divided into 2 categories.1. fai fai slow streams or water moisture into the catchment dam, flows slowly and can be absorbed into the skin to moisturize, clay flooring;2. the dam traps silt soil The sand is the sand and sludge trap Weir to not flow down to the water below.The format of the Weir can be divided into 3. 1. a preliminary local or commonly known as "FAI maeo" as construction material exists naturally, like twigs. Flanked by rocks and logs in a variety of sizes on the Lam or the water trap sediments Groove. Slowing down the flow of water and add moisture to make it around the dam area. 2. form a somewhat permanent stone building with a stone tile wall of water. Construction area of the middle and bottom of the Lam or water will be able to trap sediments and Groove catchment in the dry season, have some.3. the construction of reinforced concrete is the most permanent operation in the end of the Lam or signs of water. It is possible to trap sediments and catchment in the dry season. Construction fee, depending on the size of the Lam, which should not exceed 4 meters wide.The benefits of slowing the water Weir 1. help catchment2. help reduce the severity of wildfire3. reduce the erosion of soil and reduce the severity of the water flow on the Lam.4. help the catchment sediment and materials flowing down to the water on the Lam.5. improve biodiversity6. animal housing and is used as a water source to the consumer.
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