The paper presents an analysis of the different functions of BS and reviews the more important data
from research programmes conducted over the last decade in Veneto Region (North-East Italy). Over a
period of 3–5 years, in two experimental sites, young BS reduced total runoff by 33%, losses of N by 44%
and P by 50% compared to no-BS. A mature BS was able to abate both NO3–N and dissolved phosphorus
concentrations by almost 100%, in most cases having exiting water that satisfied the limit for avoiding
eutrophication. The BS also proved to be a useful barrier for herbicides, with concentrations abated by
60% and 90%, depending on the chemical and the time elapsed since application. Considering the CO2
immobilized in the wood and soil together, the different BS monitored stored up to 80 t ha−1 year−1.
The BS caused negligible disturbance to maize, soybean and sugarbeet yields. The hedgerows, particularly
if composed of trees taller than 6m, positively influenced the aesthetic value of the territory,
improving its perceived naturalness and screening the man-made elements.
Lastly, through a multi-objective analysis, opportunity costs were estimated to support the public
decision-maker in determining the subsidies to be paid to encourage farmers to plant BS.
The paper presents an analysis of the different functions of BS and reviews the more important datafrom research programmes conducted over the last decade in Veneto Region (North-East Italy). Over aperiod of 3–5 years, in two experimental sites, young BS reduced total runoff by 33%, losses of N by 44%and P by 50% compared to no-BS. A mature BS was able to abate both NO3–N and dissolved phosphorusconcentrations by almost 100%, in most cases having exiting water that satisfied the limit for avoidingeutrophication. The BS also proved to be a useful barrier for herbicides, with concentrations abated by60% and 90%, depending on the chemical and the time elapsed since application. Considering the CO2immobilized in the wood and soil together, the different BS monitored stored up to 80 t ha−1 year−1.The BS caused negligible disturbance to maize, soybean and sugarbeet yields. The hedgerows, particularlyif composed of trees taller than 6m, positively influenced the aesthetic value of the territory,improving its perceived naturalness and screening the man-made elements.Lastly, through a multi-objective analysis, opportunity costs were estimated to support the publicdecision-maker in determining the subsidies to be paid to encourage farmers to plant BS.
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