The response on soil temperature of vegetation in reforestation of abadoned lands

Abstract

The study was conducted on the territory of the "Nasibash" site of the Eurasian carbon polygon, where 9 vegetation communities were identified. The approach to estimation and construction of soil temperature distribution maps using Landsat 8-9 space images is presented. Evaluation of vegetation response to soil temperatures was carried out using vegetation indices: NDVI, GNDVI, EVI, CVI. The use of statistics of the obtained rasters made it possible to reveal the dependence of the values of vegetation indices on soil temperature. GNDVI demonstrated the greatest relationship: r = 0.82, R2 = 0.65. Further, the effect of soil temperature on individual plant communities was evaluated. Plots with 4 (r=0.74, R2 = 0.55) and 3 stages (r=0.47, R2 = 0.23) of pine (Pinus sylvesrtis L.) overgrowth and hayfield (r=, 0.54, R2 = 0.29) showed the highest correlations.