การศึกษาสภาวะการไหลซึมของน้ำลงสู่ลา

Study on the State of the slope down to the ooze water because vetiver's influence by comparing the route at tlaksa of soil (Soil-Water Characteristic Curve), and a water absorption coefficient function (Hydraulic Conductivity Function) between the three samples of soil contamination, for example, divided into clay or sand (Clayey Sands, SC) classification according to the Unified system, Soil Classification System (USGS) alone, 80 percent of which Crusher standard (Standard Proctor) with examples of the soil planting vetiver grass varieties in Surat Thani. By root ratio per side area (Root Side Area Ratio) of the example 1 and 2 is equal to 7.54 percent to 6.79 respectively, and the ratio of plant roots (Root Area Ratio) of the example 1 and 2 is equal to 0.35 with a 0.61 percent, respectively. Find the percentage moisture complex volume (Volumetric Water Content) of the ground Crusher plant vetiver grass, for example, that 1 and 2 vs. dirt Crusher only 3 percent difference, and 1, respectively. Best value of absorbed water in the soil is clay Crusher plant vetiver grass, for example, that 1 and 2 relative to the Earth, a different surface grinders and 1.16 only 1.53, respectively.

To study the percolation of water into the slope due to the influence of vetiver. By comparing the identity of the soil (Soil-Water Characteristic Curve) and the coefficient of permeability function (Hydraulic Conductivity Function) between the three samples. There is a sandy clay (Clayey Sands, SC) by the Unified Soil Classification System (USGS) alone compacted to 80 percent Standard (Standard Proctor) to the soil, such as planting grass species. Surat The ratio of root space per side (Side Root Area Ratio) of Example 1 and 2 were 6.79 and 7.54 percent, respectively, and the ratio of plant roots (Root Area Ratio) of Example 1 and 2 were 0.35 and 0.61 percent, respectively. The percentage of moisture, volume (Volumetric Water Content) of compacted soil cultivation Examples 1 and 2 against soil compaction alone are 1 and 3 percent, respectively, the permeability of water in the soil, soil compaction. Compression vetiver Examples 1 and 2 compared to a conventional soil are 1.16 and 1.53 times, respectively.

Study on the conditions of water seepage to the market because of the influence of vetiver. By comparing the line identity of soil (Soil-Water Characteristic Curve) and the function of permeability coefficient (Hydraulic Conductivity. Function) between the three examples.(Clayey, SandsSC) by Unified system Soil Classification System (USGS) only at the 80 percent compaction standard (Standard. Proctor) with soil samples such that planting vetiver grass species in Surat Thani. The ratio of root to the lateral (Side Root Area Ratio).And the 2 was 6.79 with 7.54 percent, respectively, and ratio of plant roots (Root Area Ratio) of the sample and 1 2 was 0.35 with 0.61 respectively, it was found that the percentage of moisture volume (Volumetric Water Content) of dirt on a piece of planting vetiver grass samples and 1 2 compared to light a piece only. And different 1 3%, respectively.1 2 compared with the surface soil and the ordinary, different 1.And 16 1.53 times, respectively.