Changes in NDVI, black carbon and soil moisture in the “Burtinskaya Steppe” of the Orenburg nature reserve according to satellite and ground data in 2000–2022

Мұқаба

Дәйексөз келтіру

Толық мәтін

Ашық рұқсат Ашық рұқсат
Рұқсат жабық Рұқсат берілді
Рұқсат жабық Рұқсат ақылы немесе тек жазылушылар үшін

Аннотация

In this work, the dynamics of changes and trends in climatic conditions, the vegetation index NDVI, the humidity of the upper soil layer and the content of black carbon in the atmosphere in the conditions of steppe fires by ground and satellite measurements for the period 2000–2022 are traced for the “Burtinskaya Steppe” in the Orenburg region. The negative trend in the values of the Selyaninov hydrothermal coefficient (HTC) indicates a tendency to weaken the moisture supply of the territory, which contributes to the occurrence of steppe fires. The consequence of climatic trends is a positive trend in the values of black carbon in the atmosphere of the studied area, as well as a tendency to decrease the biomass and humidity of the upper soil layer. Absolute interannual values were marked in 2010: minimum values of NDVI, soil moisture and maximum values of black carbon.

Толық мәтін

Рұқсат жабық

Авторлар туралы

N. Rodionova

Institute of Radioengineering and Electronics, RAS

Хат алмасуға жауапты Автор.
Email: rnv1948123@yandex.ru
Ресей, Fryazino, Moscow Region

Әдебиет тізімі

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Қосымша файлдар

Қосымша файлдар
Әрекет
1. JATS XML
Жүктеу
2. Fig. 1. Map of Belyaevsky district of Orenburg region.

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3. Fig. 2. Graphs of the values ​​of the sum of temperatures and precipitation*10 and the values ​​of the hydrothermal coefficient for May–September 2005–2022.

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4. Fig. 3. Maps of fires in the Burtinskaya steppe for 2002, 2009, 2010 and 2014.

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5. Fig. 4. Seasonal (a) and interannual (b) variations in black carbon values ​​for 2000–2022.

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6. Fig. 5. Seasonal (a) and interannual (b) variations of NDVI for the Burtynskaya steppe for the period 2000–2022.

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7. Fig. 6. Location of the RUSWET-AGRO Orenburgskaya_#1 station on the map of the Orenburg region.

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8. Fig. 7. a – seasonal variations in ground measurements of soil moisture at a depth of 0–20 cm and b – average monthly values ​​of WP at a depth of 0–10 cm according to the FLDAS model for 1994–1998 at the Orenburgskaya_#1 station.

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9. Fig. 8. Average monthly variations in the WP values ​​based on ground-based and FLDAS data for the Orenburgskaya_#1 station.

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10. Fig. 9. Graphs of seasonal (a) and interannual (b) variations in average monthly values ​​of WP at a depth of 0–10 cm for the Burtinskaya steppe region according to the FLDAS model.

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