Thresholds can have an effect on the value of water quality improvements to water users.

## $Nclass
## [1] "All"
## 
## $tt2
## [1] "0.04"
## 
## $tt1
## [1] "1"
## 
## $do.plot
## [1] "TRUE"
## 
## $save.plots
## [1] "TRUE"

Break-even prices

The analysis here shows how adding values from improved water quality due to growing perennial feedstocks can decrease the break-even price for the feedstock biomass. In the first graph(s) we show quantiles for SWAT-derived HRUs (crops, subbasins etc.) that have associated values to water drinkers (avoided cost of treatment) and recreational users of water bodies (e.g., swimmers and waders).

Quantiles

## [1] "Plotting to C:/Users/zij/Dropbox (ORNL)/MyProjects/Bioenergy/EcoServices-Valuation/Plots/drink.cost1.per.ha-valueP.0.04/BEPquantiles.png"

Ranking of biomass supply based on break-even price

The second analysis here takes the quantity of supply that is represented by each SWAT unit into account in the ranking.

Supply curves

## [1] "Plotting to C:/Users/zij/Dropbox (ORNL)/MyProjects/Bioenergy/EcoServices-Valuation/Plots/drink.cost1.per.ha-valueP.0.04/BEPSupplycdf.png"

Supply curves - inverted

## [1] "Plotting to C:/Users/zij/Dropbox (ORNL)/MyProjects/Bioenergy/EcoServices-Valuation/Plots/drink.cost1.per.ha-valueP.0.04/BEPSupplycdf-inverted.png"