The creation of a map of the Volga delta agricultural lands current state and long-term changes

2016 ◽  
Vol 917 (11) ◽  
pp. 39-46
Author(s):  
E.A. Baldina ◽  
◽  
K.A. Troshko ◽  
Keyword(s):  
Agricultural Lands ◽  
Volga Delta ◽  
Current State ◽  
Long Term Changes ◽  
The Creation

Environmental controls and long-term changes on carbon stocks under agricultural lands

2019 ◽  
Vol 186 ◽  
pp. 310-321 ◽  
Author(s):  
Paulina B. Ramírez ◽  
Francisco J. Calderón ◽  
Steven J. Fonte ◽  
Carlos A. Bonilla
Keyword(s):  
Carbon Stocks ◽  
Agricultural Lands ◽  
Environmental Controls ◽  
Long Term Changes

scholarly journals Indication of long-term changes in the vegetation of abandoned agricultural lands for the forest-steppe zone using NDVI time series

2021 ◽  
Vol 45 (2) ◽  
pp. 245-252
Author(s):  
E.A. Terekhin
Keyword(s):  
Time Series ◽  
Vegetation Index ◽  
Agricultural Land ◽  
Slope Angle ◽  
Steppe Zone ◽  
Forest Steppe ◽  
Forest Communities ◽  
Agricultural Lands ◽  
Long Term Changes

The paper presents results of the analysis of long-term changes in the vegetation cover of abandoned agricultural lands in the forest-steppe zone of the Central Chernozem Region using time series of the Normalized Difference Vegetation Index (NDVI), which are measured using MOD13Q1 data. The vegetation index dynamics linked with the proportion of forest communities formed on the abandoned agricultural lands is investigated. The index values for the period of mid-August are the most informative for analyzing the share of forest communities growing on the abandoned agricultural land. Abandoned agricultural lands with coniferous forests have a higher correlation with NDVI than fallows with deciduous species. In the period 2000-2018, for all types of abandoned arable lands, the presence of a positive statistically significant trend component of the vegetation index long-term series is established. Using a slope angle coefficient of the NDVI trend line, a spatio-temporal analysis of the rate of formation of forest stands in the forest-steppe fallows at the beginning of the XXI century was carried out. Features of this process are studied.

IX. Discussion

1965 ◽  
Vol 258 (1088) ◽  
pp. 107-108
Keyword(s):  
Geophysical Methods ◽  
Continental Drift ◽  
Tectonic Activity ◽  
Geological Time ◽  
The Past ◽  
Current State ◽  
The Earth ◽  
Long Term Changes ◽  
History Of

Although the primary subject of the Symposium was continental drift, this is only one aspect of a larger problem. Eventually, consideration of changes in magmatic, metamorphic and tectonic activity through the history of the crust should enable us to put forward a hypothesis to account for the behaviour of the upper parts of the Earth through geological time. As had been pointed out, most geophysical methods provided information about the current state of the Earth and part of the great value of palaeomagnetic studies lay in the fact that they produced information about the past. Some information about the behaviour of possible convection cells during continental drift could be obtained from other long-term changes in the crust. The incidence of magmatic and metamorphic activity gave some indication as to the distribution of regions where there had been an unusually high accession of heat in the past.

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