- sandy soil, at least 1: 5
- sandy soil. At least 1: 4
- clay, at least 1: 2
2) phase the
.Maintenance groundcover. To be effective in the prevention of soil erosion and sedimentation into the river, 3.1.9.4
Environmental impact monitoring measures 1)
. Construction stageNo measures to monitor the impact
2) phase the
no measures monitoring effect
3.2. Biological resources 3.2.1
3.2.1.1 aquatic ecology environment at present.Survey of phytoplankton, zooplankton, benthic species water and fish, the 6 station agent during the rainy season and winter found
.Phytoplankton survey during the rainy season, cold and drought, it was found that the phytoplankton in each station exist between 2-7 2-8 type, and 15-22 respectively. Index of diversity of phytoplankton are found between, and 0.30-1.91 0.34-2.49 1.40-2.57 respectively evaluate water resources mainly have a variety of phytoplankton three seasons in the low to moderate
.Zooplankton, from exploration during the rainy season, cold and drought, it was found that the zooplankton in each สถานีมีอยู่ between, and 2-8 6-16 3-9 species respectively. The species diversity index of zooplankton are found between, and 0.69-1.33 0.82-2.27 0.60-2.00 respectively evaluate water resources mainly have a variety of zooplankton in three seasons. In the low to moderate
.Benthic animals from the survey during the rainy season, cold and drought, it was found that the benthic animals exist between each station, and 9-19 8-18 7-13 species respectively. The species diversity index of benthos were between, and 1.58-2.42 1.09-2.47 1.46-2.24 respectively evaluate whether water is mainly a variety of benthic level in three seasons
plants survey of water during the rainy season. Cold and drought, it was found that the water plants in each station, there are between 5-13And 4-11 3-15 species respectively, which mainly marginal plants found floating plants, plant and the underwater plants show พ้นน้ำอ are, by the 3 season found the plants to have problems on water resources and water distribution system is sensitive, giant And water hyacinth in many stations
.
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