diff options
Diffstat (limited to 'R')
| -rw-r--r-- | R/PEC_sw_drift.R | 50 | ||||
| -rw-r--r-- | R/PEC_sw_exposit.R | 8 |
2 files changed, 32 insertions, 26 deletions
diff --git a/R/PEC_sw_drift.R b/R/PEC_sw_drift.R index f503c74..7028101 100644 --- a/R/PEC_sw_drift.R +++ b/R/PEC_sw_drift.R @@ -21,7 +21,7 @@ #' either in the original form or integrated over the width of the water body, depending #' on the 'formula' argument. #' @param crop_group_JKI When using the 'JKI' drift data, one of the German names -#' as used in [drift_parameters_focus]. +#' as used in [drift_parameters_focus]. Will only be used if drift_data is 'JKI'. #' @param water_depth Depth of the water body in cm #' @param PEC_units Requested units for the calculated PEC. Only µg/L currently supported #' @param water_width Width of the water body in cm @@ -40,13 +40,13 @@ #' PEC_sw_drift(100, distances = c(1, 3, 5, 6, 10, 20, 50, 100), drift_data = "RF") #' #' # or consider aerial application -#' PEC_sw_drift(100, distances = c(1, 3, 5, 6, 10, 20, 50, 100), drift_data = "RF", -#' crop_group_focus = "aerial") +#' PEC_sw_drift(100, distances = c(1, 3, 5, 6, 10, 20, 50, 100), drift_data = "RF", +#' crop_group_RF = "aerial") #' #' # Using custom drift percentages is also supported #' PEC_sw_drift(100, drift_percentages = c(2.77, 0.95, 0.57, 0.48, 0.29, 0.15, 0.06, 0.03)) #' -#' # The influence of assuming a 45° angle of the sides of the waterbody and the width of the +#' # The influence of assuming a 45° angle of the sides of the waterbody and the width of the #' # waterbody can be illustrated #' PEC_sw_drift(100) #' PEC_sw_drift(100, drift_data = "RF") @@ -58,10 +58,10 @@ PEC_sw_drift <- function(rate, water_depth = as_units("30 cm"), drift_percentages = NULL, drift_data = c("JKI", "RF"), - crop_group_JKI = c("Ackerbau", + crop_group_JKI = c("Ackerbau", "Obstbau frueh", "Obstbau spaet", "Weinbau frueh", "Weinbau spaet", "Hopfenbau", "Flaechenkulturen > 900 l/ha", "Gleisanlagen"), - crop_group_focus = c("arable", "hops", "vines, late", "vines, early", + crop_group_RF = c("arable", "hops", "vines, late", "vines, early", "fruit, late", "fruit, early", "aerial"), distances = c(1, 5, 10, 20), formula = c("Rautmann", "FOCUS"), @@ -78,7 +78,13 @@ PEC_sw_drift <- function(rate, if (!inherits(water_depth, "units")) water_depth <- set_units(water_depth, "cm") drift_data <- match.arg(drift_data) crop_group_JKI <- match.arg(crop_group_JKI) - crop_group_focus <- match.arg(crop_group_focus) + crop_group_RF <- match.arg(crop_group_RF) + if (drift_data == "JKI" & crop_group_RF != "arable") { + stop("Specifying crop_group_RF only makes sense if 'RF' is used for 'drift_data'") + } + if (drift_data == "RF" & crop_group_JKI != "Ackerbau") { + stop("Specifying crop_group_JKI only makes sense if 'JKI' is used for 'drift_data'") + } formula <- match.arg(formula) if (side_angle < 0 | side_angle > 90) stop("The side anglemust be between 0 and 90 degrees") mean_water_width <- if (side_angle == 90) water_width # Mean water width over waterbody depth @@ -91,9 +97,9 @@ PEC_sw_drift <- function(rate, if (is.null(drift_percentages)) { drift_percentages <- switch(drift_data, JKI = pfm::drift_data_JKI[[applications]][dist_index, crop_group_JKI], - RF = drift_percentages_rautmann(distances, applications, + RF = drift_percentages_rautmann(distances, applications, formula = formula, - crop_group_focus, widths = as.numeric(set_units(water_width, "m"))) + crop_group_RF, widths = as.numeric(set_units(water_width, "m"))) ) names(drift_percentages) <- paste(dist_index, "m") } else { @@ -112,14 +118,14 @@ PEC_sw_drift <- function(rate, #' @param distances The distances in m for which to get PEC values #' @param widths The widths of the water bodies (only used in the FOCUS formula) #' @param applications Number of applications for selection of drift percentile -#' @param crop_group_focus One of the crop groups as used in [drift_parameters_focus] +#' @param crop_group_RF One of the crop groups as used in [drift_parameters_focus] #' @seealso [drift_parameters_focus], [PEC_sw_drift] #' @references FOCUS (2014) Generic guidance for Surface Water Scenarios (version 1.4). #' FOrum for the Co-ordination of pesticde fate models and their USe. #' <http://esdac.jrc.ec.europa.eu/public_path/projects_data/focus/sw/docs/Generic%20FOCUS_SWS_vc1.4.pdf> #' @export #' @examples -#' # Compare JKI data with Rautmann formula +#' # Compare JKI data with Rautmann and FOCUS formulas for arable crops (default) #' # One application on field crops, for 1 m, 3 m and 5 m distance #' drift_data_JKI[[1]][as.character(c(1, 3, 5)), "Ackerbau"] #' drift_percentages_rautmann(c(1, 3, 5)) @@ -127,31 +133,31 @@ PEC_sw_drift <- function(rate, #' #' # One application to early or late fruit crops #' drift_data_JKI[[1]][as.character(c(3, 5, 20, 50)), "Obstbau frueh"] -#' drift_percentages_rautmann(c(3, 5, 20, 50), crop_group = "fruit, early") -#' drift_percentages_rautmann(c(3, 5, 20, 50), crop_group = "fruit, early", +#' drift_percentages_rautmann(c(3, 5, 20, 50), crop_group_RF = "fruit, early") +#' drift_percentages_rautmann(c(3, 5, 20, 50), crop_group_RF = "fruit, early", #' formula = "FOCUS") #' drift_data_JKI[[1]][as.character(c(3, 5, 20, 50)), "Obstbau spaet"] -#' drift_percentages_rautmann(c(3, 5, 20, 50), crop_group = "fruit, late") -#' drift_percentages_rautmann(c(3, 5, 20, 50), crop_group = "fruit, late", +#' drift_percentages_rautmann(c(3, 5, 20, 50), crop_group_RF = "fruit, late") +#' drift_percentages_rautmann(c(3, 5, 20, 50), crop_group_RF = "fruit, late", #' formula = "FOCUS") -#' +#' #' # We get a continuum if the waterbody covers the hinge distance #' # (11.4 m for 1 early app to fruit) #' x <- seq(3, 30, by = 0.1) -#' d <- drift_percentages_rautmann(x, crop_group = "fruit, early", formula = "FOCUS") +#' d <- drift_percentages_rautmann(x, crop_group_RF = "fruit, early", formula = "FOCUS") #' plot(x, d, type = "l", -#' xlab = "Distance of near edge [m]", +#' xlab = "Distance of near edge [m]", #' ylab = "Mean drift percentage over waterbody width", #' main = "One application to fruit, early") #' abline(v = 11.4, lty = 2) -drift_percentages_rautmann <- function(distances, applications = 1, - crop_group_focus = c("arable", "hops", "vines, late", "vines, early", "fruit, late", +drift_percentages_rautmann <- function(distances, applications = 1, + crop_group_RF = c("arable", "hops", "vines, late", "vines, early", "fruit, late", "fruit, early", "aerial"), formula = c("Rautmann", "FOCUS"), widths = 1 ) { - cg <- match.arg(crop_group_focus) + cg <- match.arg(crop_group_RF) if (!applications %in% 1:8) stop("Only 1 to 8 applications are supported") formula <- match.arg(formula) @@ -172,7 +178,7 @@ drift_percentages_rautmann <- function(distances, applications = 1, ifelse(z2 < hinge, # farther edge closer than hinge distance A/(widths * (B + 1)) * (z2^(B + 1) - z1^(B + 1)), - ifelse(z1 < hinge, + ifelse(z1 < hinge, # hinge distance in waterbody (between z1 and z2) (A/(B + 1) * (H^(B + 1) - z1^(B + 1)) + C/(D + 1) * (z2^(D + 1) - H^(D + 1)))/widths, # z1 >= hinge, i.e. near edge farther than hinge distance diff --git a/R/PEC_sw_exposit.R b/R/PEC_sw_exposit.R index a47ca18..fe23284 100644 --- a/R/PEC_sw_exposit.R +++ b/R/PEC_sw_exposit.R @@ -159,10 +159,10 @@ PEC_sw_exposit_runoff <- function(rate, interception = 0, Koc, DT50 = set_units( #' @param dilution The dilution factor #' @return A list containing the following components #' \describe{ -#' \item{perc_runoff}{The runoff percentages for dissolved and bound substance} -#' \item{runoff}{A matrix containing dissolved and bound input for the different distances} -#' \item{PEC_sw_runoff}{A matrix containing PEC values for dissolved and bound substance -#' for the different distances. If the rate was given in g/ha, the PECsw are in microg/L.} +#' \item{perc_drainage_total}{Gesamtaustrag (total fraction of the residue drained)} +#' \item{perc_peak}{Stoßbelastung (fraction drained at event)} +#' \item{PEC_sw_drainage}{A matrix containing PEC values for the spring and autumn +#' scenarios. If the rate was given in g/ha, the PECsw are in microg/L.} #' } #' @export #' @source Excel 3.02 spreadsheet available from |