Can I use RUSLE to assess soil erosion rates of hills of Nepal? If yes, how can I calculate the values for LS factor?

More Devraj Chalise's questions See All

Probit model in a cross sectional dataset?

Is it possible to use probit model in a pooled cross sectional dataset? While there are literature around application of the probit model in panel data, I wonder if there are specific examples of...

31 December 2020 6,607 6 View

Whats the name of this fruit?

13 October 2016 9,076 63 View

Is there any book for step to step data analysis for SPSS beginners ?

Many students frequently ask this questions. Students from under developed country have some difficulty to purchase the expensive book. Do you have any idea about the free access of such a book so...

28 December 2014 6,460 14 View

What are the best markers for mouse anti inflammatory/regulatory/M2c macrophages ?

For FACS analysis.

06 February 2014 3,572 3 View

Why journals use fake Digital Object Identifier (DOI) in the published article ?

I have recently encountered Fake DOI used in the published article? Is there any legal action author can do for it?

01 January 1970 7,453 10 View

What happens if your same article publishes in two journals in spite of authors awareness about ethical issues?

Dear Researcher, Recently I am in stress as my same article published in both Journals. 1. the First journal denied publishing it without paying publication charges. Then I emailed them...

01 January 1970 4,610 4 View

Isolates of Hymenoscyphus fraxineus?

Dear Dr. Cai, my name is Simone Prospero and I work in the team of Phytopathology at the Swiss Federal Institute for Forest Snow and Landscape Research (WSL;...

01 March 2021 1,133 1 View

How to eliminate Steady state error from Reinforcement learning genetic algorithm code?

The following code (see 1st 2 images attached) is used to produce PID controller values that are designed to control the system (G). The code finds the PID controller values (noted as k) by using...

28 February 2021 6,560 14 View

LEDs on Vis Light photo degradation of MB water sol via N doped TiO2 in a mini flume?

Good day to all, I have no experience with light emitting diodes. I am building a glass mini flume to demonstrate the photo degradation of Methylene Blue in water running over self cleaning...

26 February 2021 4,026 5 View

CGA 300 Regulator for CO2 cylinder?

Has anyone ever tried to deliver CO2 with a CGA 300 regulator? I know that a CGA 320 regulator is standard for CO2. The issue is that I currently do not have any free CGA 320 regulators. I also...

25 February 2021 3,292 3 View

How to interpolate from a time-series database ?

Hi, I am having trouble with a problem, in the field of Optimal Control and the generation of optimal time-series. Let's consider a system, whose dynamics are represented by dx/dt =...

24 February 2021 9,105 2 View

Is this the write procedure for acid digestion of soil for heavy metal analysis using AAS?

How to do acid digestion of soil sample with 3:1 aquaregia in an open vessel?

23 February 2021 3,053 7 View

Must a control group to be in the same semester that a experimental group for a study in education?

Hi everyone, I'm researching about mobile learning in higher education. Due to the small number of the students in the semesters, I cannot have a experimental and control group together. I'm...

22 February 2021 3,653 11 View

How to constrain genetic algorithm input u?

My real system (buck converter) can only take an input of 0 to 1 (duty ratio) and I need to constrain the system so the controller action keeps within this bounds. How can I do this? The code for...

22 February 2021 2,125 3 View

How to build fouling and erosion simulation model for Aero Engine compressor and turbine rotor in Simulink / Matlab?

22 February 2021 3,697 1 View

Are there packages (R or Python) for simple models (bucket?) to assess soil water content?

Hi everyone. I am researching droguht effects on soil water drought. I am looking for already implemented functions in R or Python to estimate soil water content from precipitation,...

21 February 2021 2,084 1 View

Paulo Eduardo Cardoso

Why not?

There are some adaptations to mountainous sub-watersheds

http://www.sciencedirect.com/science/article/pii/S1674987111001034

https://link.springer.com/article/10.1007/s10661-007-9894-9

Considering that L-S factor will specifically account for slope length and steepness and that you have a detailed DEM, why not applying the RUSLE equation and contrast the results with available field data?

All the best.

http://topsoil.nserl.purdue.edu/nserlweb-old/isco99/pdf/ISCOdisc/SustainingTheGlobalFarm/P042-BY%20Liu.pdf

http://www.saga-gis.org/saga_tool_doc/2.1.3/ta_hydrology_22.html

Article Slope Gradient Effects on Soil Loss for Steep Slopes

Devraj Chalise

Thanks Paulo for your answer. RUSLE has been widely used in assessing erosion of watersheds, no doubt in that. I am focusing on rain induced soil erosion in Nepal hills during monsoon and not watching erosion in watershed.

We generally calculate LS by following method

1. Calculating Flow Direction from clipped watershed DEM layer using Flow Direction tool

2. Calculating Flow Accumulation with Flow Accumulation tool using flow direction data as the input raster

3. Calculate slope of watershed in degrees using Slope tool using clipped watershed DEM as the input layer

4. Copying and pasting the LS-factor formula into Raster Calculator

My concern, here is, can we determine flow direction and flow accumulation in hilly slopes (where rain induced erosion is the main source of degradation)?????

Some additional readings from GRASS and SAGA. Your problem may be also related to landslide/debris flow models.

https://grass.osgeo.org/grass73/manuals/r.watershed.html

https://grass.osgeo.org/grass64/manuals/r.flow.html

https://grass.osgeo.org/grass72/manuals/addons/r.landscape.evol.html

http://www.saga-gis.org/saga_tool_doc/2.2.4/ta_hydrology_0.html

Thanks Paulo for the documents link.

Velibor Spalevic

IntErO software (2011)

www.agricultforest.ac.me/Spalevic/IntErO

Examples: