SOIL EROSION EXCERCISE

... protection soil from erosion in Vietnam 2.4 Rainfall Interpolation Monthly rainfall maps are interpolated from 30-year averaging rainfall data of 158 weather stations relative evenly distributed in Vietnam ... (Renard et al., 1997) [13] In this study, to define required forest areas for soil erosion protection, average soil loss per unit areas was spatially predic...

Ngày tải lên: 28/03/2014, 15:20

... watersheds in Vietnam; and to determine peak discharge of these watersheds by the predictors of initial flow, rainfall, and rain intensity c) to identify the roles of forest cover on soil erosion ... (3) to analyze the relationship between watershed factors and runoff indices; and (4) to separately inspect rainfall dynamics and runoff relationships in...

Ngày tải lên: 03/04/2014, 12:22

... _ : CRITERIA OF ACCEPTANCE FOR CONSTANT RATE OF STRAIN CONSOLIDATION TEST FOR COHESIVE SOIL LAM CHEE SIANG A thesis submitted in fulfilment of the requirements for the award of the degree of Master ... Example of Loading and Unloading Stage for Standard Oedometer Test 20 2.3 Constant Rate of Strain Consolidation Test Constant rate of...

Ngày tải lên: 22/03/2013, 15:01

... sides of 1V: 3H (Figure 1) The construction of the embankment is divided into stages with each stage of five-month consolidation Figure Embankment dam Model and five staged construction (not ... purposes of FE-analyses are the determination of stresses including pore pressures, of stress/strain distribution, and the prediction of deformation and settlement Safey fac...

Ngày tải lên: 01/04/2013, 22:44

... Show the design that is sketched above Task Explain what would you have to in order to add a third ecosystem, e.g High Mountains (eagle, alpine ibex, rhododendron) How about the changes required ... simulations, the fungus (mushrooms)? Exercise Task Give descriptions of specialization interfaces of the EcosystemSimulation framework, that is, write sufficient ‘manual’ for the specialization a...

Ngày tải lên: 20/06/2013, 20:04

Ngày tải lên: 01/07/2013, 01:26

... suspended solids (SS) by Standard Method for the Examination of Water and Wastewater (1995), COD by potassium dichromate method, NH4-N by Nessler method, NO2-N by diazotization method, NO3-N and ... water was discharged from houses In spite of such fluctuation of BOD in river water, the BOD concentration of treated water was very small in all the MSL system...

Ngày tải lên: 05/09/2013, 08:40

... In Groundwater Of Bangladesh Field experience and available data shows that both soil and under groundwater of a vast area of Bangladesh has been threatened with arsenic contamination affecting ... Preliminary Results of Groundwater investigation in Arsenic affected areas in Bangladesh A Report Prepared by RGAG Japan RGAG(1999) Arsenic contamination of...

Ngày tải lên: 05/09/2013, 08:40

... decrease of penetration capacity and purification efficiency during continuous use of the facility was investigated The facility consisted of two tanks In one of the tanks, continuous use of the facility ... Journal of Water and Environment Technology, Vol.3, No.2, 2005 In this study, purification of storm water runoff from road surface using a soil penetrat...

Ngày tải lên: 05/09/2013, 09:08

... predicting salts transport in fields in China The objective of this study was to examine the change in hydraulic conductivity that occurs as a result of adding the gypsum, and to examine the transport ... the beginning of leaching, decreased after a peak, and then increased and decreased again This behavior indicates that the initial leaching is like Na+ leachi...

Ngày tải lên: 05/09/2013, 09:38

... investigate the effect of Ca and Mg addition on the leaching behavior of As from highly contaminated paddy field soil under different concentrations of Ca and Mg addition, pH conditions and anaerobic ... Other Conditions 0.9 Effect of P and 100 and 2.0 pH adjusted to 3.0, 5.0, 7.0, 9.0 and 11.0 pH 7.0 Leaching in anaerobic incubation and 100 0.9 Eff...

Ngày tải lên: 05/09/2013, 10:15