Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2024, Vol. 21, No. 2, pp. 143-155
Using the NDVI index to assess the development of perennial grasses under conditions of spatial and temporal heterogeneity
A.D. Kirsanov
1 , A.A. Komarov
1 1 Agrophysical Research Institute, Saint Petersburg, Россия
Accepted: 19.02.2024
DOI: 10.21046/2070-7401-2024-21-2-143-155
The paper presents results of using the Normalized Difference Vegetation Index (NDVI) to assess the development of perennial grasses in conditions of spatiotemporal heterogeneity on the territory of a test monitoring site located in the north-west of the Russian Federation (Leningrad region) on peat soils. The assessment was carried out using ground research and Earth remote sensing data on a test site with an area of 9.5 hectares, divided into 4 elementary sections. The study was carried out in seasons with different agroclimatic conditions using various resources (Vega-Science System and LandViewer). Using a comprehensive analysis of the agroecological assessment of the condition of the landfill territory over 5 years, the main limiting factors were identified. The assessment was carried out using remote sensing and ground soil-agrochemical studies. It has been established that, under conditions of significant heterogeneity in the parameters of soil fertility of peat soils and variability of weather conditions, using only agrochemical methods, it is very difficult to predict the productivity and timing of harvesting perennial grasses. When conducting agroecological monitoring, the feasibility of using the NDVI index to assess the development of perennial grasses in conditions of spatiotemporal heterogeneity on peat soils was determined.
Keywords: Earth remote sensing data, NDVI vegetation index, elevation map, agrolandscape features, agroecological monitoring, agrochemical characteristics, peat soils, productivity, microrelief, hydrothermal coefficient (HTC)
Full textReferences:
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