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Questions tagged [soil]

The tag has no usage guidance.

3
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0answers
30 views

Creating equidistant sampling points in polygon in QGIS 3.6.0?

I have figured out how to add random points inside polygon boundaries. Although this works well, nevertheless I need a few different things to happen for my application. What I would like to do is ...
0
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0answers
31 views

Digital Soil Map of the World [duplicate]

I have downloaded a digital soil map of the world from: https://worldmap.harvard.edu/data/geonode:DSMW_RdY It has lots of files in it with different endings (shp, sbx, xls etc.). I am using QGIS 3.4. ...
1
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1answer
43 views

How to Sample Locations from a Satellite Image

I am using the Near infrared and red bands from satellite images to research soil quality in southern Africa. The study site is about 20 km wide and 20 km long so almost square shape, and I am using 5 ...
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0answers
24 views

Using Soil Line to Assess Soil Fertility?

I am using a Soil Line model to research possible soil fertility in bare soil patches in southern Africa. I am using a function in R called BSL (Bare soil line) to create the soil line from some ...
2
votes
1answer
43 views

Calculating Area with GSSURGO vector data

I'm attempting to calculate acreage of the various "prime farmland" classifications in the GSSURGO dataset for the Omaha Reservation in Nebraska using QGIS but when I sum the total it's about 86 times ...
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0answers
40 views

Parameters for BSL Package in R

I am using the landsat BSL (Bare Soil Line) package from R https://rdrr.io/cran/landsat/man/BSL.html, and I am wondering why the code sample is using llimit 0.005 and not 0.01: BSL(band3, band4, ...
1
vote
1answer
88 views

Calculating Bare Soil Line using R?

I am using a package in R called BSL (Bare soil line), package is at https://rdrr.io/cran/landsat/man/BSL.html. I've used it successfully to run regression line for my soil study area but it is ...
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0answers
35 views

Seeking Soil Mapping data in Southern Africa?

I am researching soil quality in Zambia but I’ve been unable to find georeferenced soil datasets (e.g. soil samples) for my area of interest. Specifically, I want to get yearly soil sampling data in ...