Targeting critical source areas for phosphorus losses: Evaluation with soil testing, farmers’ assessment and modelling
| Autor: | Faruk Djodjic, Dennis Collentine, Helena Elmquist |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Soil test
Geography Planning and Development chemistry.chemical_element Agricultural engineering 010501 environmental sciences 01 natural sciences Soil survey Soil Report Environmental Chemistry 0105 earth and related environmental sciences Sweden Targeting Farmers Ecology business.industry Phosphorus Agriculture 04 agricultural and veterinary sciences General Medicine Eutrophication Models Theoretical Farm chemistry 040103 agronomy & agriculture Erosion 0401 agriculture forestry and fisheries Environmental science Site-specific Spatial variability Arable land High-resolution business |
| Zdroj: | Ambio |
| ISSN: | 1654-7209 0044-7447 |
| Popis: | Diffuse phosphorus (P) losses from arable land need to be reduced in a cost-efficient way, taking into account their temporal and spatial variability. This study, based on 16 farms across southern Sweden, examined possibilities for identifying critical source areas for P losses based on the combined results of high-resolution erosion modelling, independent risk assessments by farmers, soil survey and SWOT analysis performed by farmers. Statistically significant differences in dissolved P release were found between soil P test classes in the studied area, whereas soil textural classes and not P content governed potential mobilisation of soil particles and unreactive P. Spatial comparison of problem areas identified by farmers and modelled features showed that the modelled erosion pathways intersected 109 in a total of 128 (85%) observed problem areas. The study demonstrates the value in involving farmers in the identification of critical source areas in order to select and support implementation of effective countermeasures. |
| Databáze: | OpenAIRE |
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