Condition monitoring and analysis of development in winter crops of water erosion processes using remote sensing technologies
2019
Esaulko, A., Stavropol State Agrarian Univ. (Russian Federation) | Sigida, M., Stavropol State Agrarian Univ. (Russian Federation) | Golosnoy, E., Stavropol State Agrarian Univ. (Russian Federation) | Antonov, S., North-Caucasian Federal Scientific Agrarian Centre, Mikhaylovsk, Stavropol Territory (Russian Federation) Russia | Lobankova, O., Stavropol State Agrarian Univ. (Russian Federation)
The article presents the results of water erosion monitoring, which was carried out in 2015 on the territory of the agricultural landscapes of the Stavropol Territory using the methods of the Earth’s remote sensing and geo-information technologies. A digital elevation model was taken as a basis and watercourses were modelled in the study area. As a result of the imposition, the received model and the identified erosion processes, and their coincidence was established in individual areas, which indicates their high degree of erosion hazard, a total of 382 326 hectares of such territories were identified. In these territories, the existing anti-erosion carcass is either completely destroyed or ineffective. In this regard, it is necessary to conduct an inventory of forest shelter strips to assess their effectiveness and develop measures for erosion control of the territory. Different types of degradation in varying degrees reduce the productivity of agricultural crops. Salinity and alkalinity decrease it by 55 % to the greatest extent, water erosion – 19 %, deflation – 13 %, waterlogging – 6 %. It has been established that water erosion as a whole along the region by 2026 can lead to a loss of 700 thousand tons of grain of the main crop in the region, winter wheat. Modern technologies, such as space imagery and GIS technologies, allow for effective and efficient detection and analysis of erosion-hazards. The combination of high-resolution remote sensing and medium resolution data has shown maximum efficiency for analysing the development of linear water erosion processes. The development of a comprehensive program of anti-erosion measures will allow to reach up to 10 % of the future harvest in the Stavropol Territory.
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