Global Carbon Budgets and the Role of Remote Sensing

2015 ◽  
pp. 675-694
Keyword(s):  
Remote Sensing ◽  
Carbon Budgets ◽  
Global Carbon

scholarly journals Fire and vegetation dynamics in northwest Siberia during the last 60 years based on high-resolution remote sensing

2021 ◽  
Vol 18 (1) ◽  
pp. 207-228
Author(s):  
Oleg Sizov ◽  
Ekaterina Ezhova ◽  
Petr Tsymbarovich ◽  
Andrey Soromotin ◽  
Nikolay Prihod'ko ◽  
...  
Keyword(s):  
Remote Sensing ◽  
High Resolution ◽  
Carbon Balance ◽  
Climatic Factors ◽  
Carbon Sink ◽  
Vegetation Types ◽  
Burned Areas ◽  
Northern Areas ◽  
Global Carbon

Abstract. The rapidly warming Arctic undergoes transitions that can influence global carbon balance. One of the key processes is the shift towards vegetation types with higher biomass underlining a stronger carbon sink. The shift is predicted by bioclimatic models based on abiotic climatic factors, but it is not always confirmed with observations. Recent studies highlight the role of disturbances in the shift. Here we use high-resolution remote sensing to study the process of transition from tundra to forest and its connection to wildfires in the 20 000 km2 area in northwest Siberia. Overall, 40 % of the study area was burned during a 60-year period. Three-quarters of the burned areas were dry tundra. About 10 % of the study area experienced two–three fires with an interval of 15–60 years suggesting a shorter fire return interval than that reported earlier for the northern areas of central Siberia (130–350 years). Based on our results, the shift in vegetation (within the 60-year period) occurred in 40 %–85 % of the burned territories. All fire-affected territories were flat; therefore no effect of topography was detected. Oppositely, in the undisturbed areas, a transition of vegetation was observed only in 6 %–15 % of the territories, characterized by steeper topographic slopes. Our results suggest a strong role of disturbances in the tree advance in northwest Siberia.

scholarly journals Editorial Summary, Remote Sensing Special Issue “Advances in Remote Sensing for Global Forest Monitoring”

2021 ◽  
Vol 13 (4) ◽  
pp. 597
Author(s):  
Erkki Tomppo ◽  
Guangxing Wang ◽  
Jaan Praks ◽  
Ronald E. McRoberts ◽  
Lars T. Waser
Keyword(s):  
Remote Sensing ◽  
Carbon Balance ◽  
Social Economic ◽  
Cultural Development ◽  
Forest Monitoring ◽  
Accurate Information ◽  
Special Issue ◽  
Global Carbon

The need for timely, spatially, and thematically accurate information regarding forests is increasing because of the key role of forests in the global carbon balance and sustainable social, economic, ecological, and cultural development [...]

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