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diff --git a/docs/reference/perc_runoff_reduction_exposit.md b/docs/reference/perc_runoff_reduction_exposit.md new file mode 100644 index 0000000..7757223 --- /dev/null +++ b/docs/reference/perc_runoff_reduction_exposit.md @@ -0,0 +1,67 @@ +# Runoff reduction percentages as used in Exposit + +A table of the runoff reduction percentages used in Exposit 3 for +different vegetated buffer widths + +## Usage + +``` r +perc_runoff_reduction_exposit +``` + +## Format + +A named list of data frames with reduction percentage values for the +dissolved fraction and the fraction bound to eroding particles, with +vegetated buffer widths as row names. The names of the list items are +the Exposit versions from which the values were taken. + +- dissolved: + + The reduction percentage for the dissolved phase + +- bound: + + The reduction percentage for the particulate phase + +## Source + +Excel 3.02 spreadsheet available from +<https://www.bvl.bund.de/SharedDocs/Downloads/04_Pflanzenschutzmittel/zul_umwelt_exposit.html> + +Agroscope version 3.01a with additional runoff factors for 3 m and 6 m +buffer zones received from Muris Korkaric (not published). The variant +3.01a2 was introduced for consistency with previous calculations +performed by Agroscope for a 3 m buffer zone. + +## Examples + +``` r +print(perc_runoff_reduction_exposit) +#> $`3.02` +#> dissolved bound +#> No buffer 0 0 +#> 5 m 40 40 +#> 10 m 60 85 +#> 20 m 80 95 +#> +#> $`3.01a` +#> dissolved bound +#> No buffer 0 0 +#> 3 m 25 30 +#> 5 m 40 40 +#> 6 m 45 55 +#> 10 m 60 85 +#> 20 m 80 95 +#> +#> $`3.01a2` +#> dissolved bound +#> No buffer 0 0 +#> 3 m 25 25 +#> +#> $`2.0` +#> dissolved bound +#> No buffer 0.0 0.0 +#> 20 m 97.5 97.5 +#> +``` |