| Title | Soil loss tolerance in the context of the European Green Deal |
|---|---|
| ID_Doc | 63078 |
| Authors | Di Stefano, C; Nicosia, A; Pampalone, V; Ferro, V |
| Title | Soil loss tolerance in the context of the European Green Deal |
| Year | 2023 |
| Published | Heliyon, 9, 1 |
| Abstract | Soil erosion by water, and the consequent loss of a non-renewable resource, is a relevant envi-ronmental issue which has economic, ecologic, and social repercussions. In the context of the European Green Deal, the increasing awareness of soil Ecosystem Services is leading to give the due relevance to this problem. Notwithstanding the recent soil conservation strategies adopted by the Common Agricultural Policy had positive effects, the concern regarding this topic is drasti-cally increasing for the normalization of extraordinary rainfall events due to climate change. Recent events occurred in Europe demonstrated that landscape protection is often inadequate and interventions to prevent damages due to hydrogeological instability are scarce.The determination of a "tolerable" soil loss TSL is useful to establish a quantitative standard to measure the effectiveness of strategies and techniques to control soil erosion. However, soil conservation strategies/works designed by the mean annual value of the climatic variable, as the rainfall erosivity factor R, are not appropriate for some erosive events which produce intolerable sediment yield values. Therefore, the adoption of an adequate TSL, which could help to ensure the protection of soil functions and a sustainable soil use, should be a primary goal to reach for policy makers.In this paper, a new method to define the tolerable soil loss is proposed. This approach is based on the statistical analysis of the measured annual values of R and leads to the determination of the cover and management factor for which the maximum tolerable soil loss is equal to the annual soil loss of given return period. The analysis demonstrated that to limit soil erosion to the tolerable soil loss, interventions to change land use, reduce field length or apply support practices can be carried out. |
| https://doi.org/10.1016/j.heliyon.2023.e12869 |
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