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- W3120590419 abstract "<p>Olive and vine orchards in the island of Crete suffer from extreme soil erosion due to intense rainfall, farm slope and/or the intensification of tilling processes. This research aims to assess the impacts of agricultural practices, land use, and vegetation cover on the quantity of erosion processes in three study areas located in Western Crete. These areas provide the case studies of soil loss (erosion/deposition) monitoring analysis and assessment process. Advanced research treatments of Soil Improving Cropping Systems (SICS) are implemented and tested in three different crop types: (1) Crop cover treatment (i.e. seed with vetch) applied in vineyards (Vitis vinifera) in Alikampos; (2) Tilled treatment applied in Olive orchards (Olea europaea cv. Koroneiki) in Astrikas; and (3) Crop switch treatment from Orange trees to Avocados applied in Koufos. It is notable that an avocado farm, besides providing financial benefits, can also maintain a superior overall soil quality. Soil erosion has not been measured yet for avocados, however, avocado plantations are proposed as a sustainable alternative. Soil loss is estimated for the aforementioned case studies, by comparing the results from treatments applied in SICS areas, with the Control areas, where no treatment has taken place. Three different methodologies are used in order to identify soil loss amount: (a) Sediment traps (all sites); (b) Cross sections measurement (Alikampos and Astrikas) and (c) Soil deposition reference sticks (Alikampos and Koufos). Preliminary results show that soil loss values (tn/ha), are absolute values of erosion/deposition, and range from 2.33 to 16.41 tn/ha for vineyards with no vetch (Control), from 1.64 to 13.46 tn/ha for vineyards with vetch (SICS), from 2.21 to 15.66 tn/ha for no tilled olive orchards (Control), from 0.43 to 5.8 tn/ha for tilled olive orchards (SICS), from 2.63 to 10.05 tn/ha for orange orchards (Control), and from 2.24 to 8.95 tn/ha for avocado orchards (SICS). In addition, the ongoing research has already yielded the following yearly average soil loss rates (tn/ha/yr): vineyards &#8211; Control 6.883 tn/ha/yr versus vineyards &#8211; SICS 6.587 tn/ha/yr; olive orchards -&#160; Control 7.019 tn/ha/yr versus olive orchards &#8211; SICS 3.215 tn/ha/yr; and orange orchards &#8211; Control 6.406 tn/ha/yr versus avocados &#8211; SICS 5.386 tn/ha/yr. The above field results are also in general agreement with the yearly average soil erosion rates in the island of Crete, modeled by several researchers. All study sites show mitigation of soil loss and improvement of soil quality from the application of SICS treatments. Therefore, it is recommended to raise farmers&#8217; awareness about their effectiveness in order to confront the consequences of soil degradation.</p><p>Keywords: Soil Loss; Sediment Traps; Soil Improving Cropping Systems; Crete</p><p>The research leading to these results is funded by H2020 program under grant agreement n&#176; 633814<strong> (SOILCARE).</strong></p>" @default.
- W3120590419 created "2021-01-18" @default.
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- W3120590419 date "2020-03-23" @default.
- W3120590419 modified "2023-09-25" @default.
- W3120590419 title "Monitoring and Estimating Soil Loss in Agricultural Areas - Case Studies in Chania, Crete, Greece" @default.
- W3120590419 doi "https://doi.org/10.5194/egusphere-egu2020-6578" @default.
- W3120590419 hasPublicationYear "2020" @default.
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