Delineation of burned arid landscapes using Landsat 8 OLI data: a case study of Karaganda region in Kazakhstan

Karpachevskiy, Andrey; Lednev, Sergey; Semenkov, Ivan; Sharapova, Anna; Nagiyev, Sultan; Koroleva, T. V.

doi:10.1080/15324982.2021.1887398

Cited by 7 publications

(14 citation statements)

References 33 publications

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“…In the Republic of Kalmykia, the territory most affected by fires is the State's Natural Biosphere Reserve "Chernye Zemli" [1], where the largest fires among all specially protected natural areas in the southeast of the European part of Russia were recorded. Over the period 1987-2022, 88% of the area of the "Chernye Zemli" Reserve and adjacent territories has been burned 4-7 times, which is significantly more than in Central Kazakhstan [2]. Up to 90% of fires from the five-kilometer zone adjacent to the "Chernye Zemli" Reserve, and all fires from its protective zone, spread to the reserve Fire 2024, 7, 96 2 of 17 core.…”

Section: Introductionmentioning

confidence: 99%

“…The purpose of our work was to evaluate the effects of time since the last fire and fire frequency on phytocenoses at the "Chernye Zemli" Reserve and adjacent areas. The study investigated three issues: (1) assessing the degree of differences in the composition of communities in and beyond the "Chernye Zemli" Nature Reserve, (2) identifying changes in plant communities during pyrogenic succession, and (3) estimating the impact of fire frequency on the state of plant communities.…”

Section: Introductionmentioning

confidence: 99%

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Influence of Fires on Desert Plant Communities at the Chernye Zemli (SW Russia)

Klink,

Lednev,

Semenkov

et al. 2024

Fire

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Understanding the rate and direction of pyrogenic succession in arid ecosystems, which depends on many factors, including the intensity of grazing and the frequency of pyrogenic expo-sure, will allow for more accurate predictions of the consequences of fire onplant communities, and will assist with better fire management. We studied the vegetation on 55 sites in and near the “Chernye Zemli” Natural Biosphere Reserve that burned at different times or were not affected by fires over the past 35 years and characterized the changes in vegetation cover associated with the impact of wildfire and grazing. The descriptions were grouped into chronological stages according to the time elapsed since the last fire, or into groups according to the frequency of fires. In pairwise comparison of the projective cover of plant species between chronological stages, it correlated most strongly between successive initial stages (for stages 1 and 2, p = 0.003, r = 0.73; for stages 2 and 3, p < 0.001, r = 0.78). Species with an initially higher projective cover were more likely to grow on plots in the first year after the fire: p < 0.03. Plots with rare and frequent fires had similar projective cover of individual species (r = 0.64, p < 0.001). We conclude that in the course of pyrogenic succession, communities are gradually replaced over at least ten years. At the same time, the composition of a plant community at the initial point of succession depends on the prevalence of species in the community before the fire. No fundamental effect of the frequency of fires on the composition of plant communities has been revealed.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of Fires on Desert Plant Communities at the Chernye Zemli (SW Russia)

Klink,

Lednev,

Semenkov

et al. 2024

Fire

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“…In recent years, there has been an increasing number of studies focused on fires in the steppe and semi-desert zones of Kazakhstan [Karpachevskiy et al, 2021;Shinkarenko et al, 2023]. Multi-time series observations made possible by the Landsat satellite provide insights into long-term dynamics.…”

Section: Introductionmentioning

confidence: 99%

Restoration of Western Siberia meadow vegetation after fires according to Sentinel-2 data

Karpachevskiy,

Tikhonov,

Koroleva

2023

E3S Web of Conf.

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The paper considers the dynamics of restoration of plant communities of meadows in the south of Western Siberia according to Sentinel data-2. Four subjects of the Russian Federation and nine specially protected natural territories within them were taken. Sentinel-2 data is characterized by a repetition of the survey once every five days and a spatial resolution of 10-20 m, which allows you to track the moment of the fire with high accuracy and record the state of vegetation before and after it. For quantitative evaluation, we used NDVI and NBR2 indices, which were compared for burnt and unburned areas before the fire, immediately after the fire, one year after the fire and two years after the fire. As a result of statistical analysis by the Mann-Whitney test, it was found out that both indices practically do not show the consequences of meadow fires in any way a year after the fire.

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“…At the same time, even in arid regions, weather conditions do not always allow us to get a correct picture of the spread of fires in a sufficiently high spatial resolution (the first tens of meters). Previously we have studied usage of NBR spectral index for Landsat data [5]. Fires within drop zones in Kazakhstan occur regularly and some of them are due to dropping launch vehicle parts.…”

Section: Introductionmentioning

confidence: 99%

Using SAR-data and optical data to delineate burned territories in Kalmykia, Chernye Zemli reserve

Karpachevskiy

Mikhailukova

Sharapova

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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The study of fires and their consequences using remote sensing methods in the optical range is widespread. There are many studies devoted to forest fires, a little less to fires in arid areas. At the same time, even in arid regions, weather conditions do not always allow us to get a correct representation of the fire spread in a sufficiently high spatial resolution (the first tens of meters). Our study is related to the territory of Chernye Zemli reserve located in Kalmykia, Russian Federation. In this study, we are conducting an experiment on the joint use of multitemporal synthesis of vertical polarization radar data and the burn index (dNBR2) according to Landsat-8 satellite data. The use of the image segmentation approach gave good results in identifying the boundaries of the burned territories from radar data, and the use of a training sample from optical data index image made it possible to classify the selected superpixels according to the classes of “burned” or “not burned”.

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Delineation of burned arid landscapes using Landsat 8 OLI data: a case study of Karaganda region in Kazakhstan

Cited by 7 publications

References 33 publications

Influence of Fires on Desert Plant Communities at the Chernye Zemli (SW Russia)

Influence of Fires on Desert Plant Communities at the Chernye Zemli (SW Russia)

Restoration of Western Siberia meadow vegetation after fires according to Sentinel-2 data

Using SAR-data and optical data to delineate burned territories in Kalmykia, Chernye Zemli reserve

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