Monitoring fire regimes and assessing their driving factors in Central Asia
| Autor: | Jia-paer Guli, Hanmin Yin, Tao Yu, Liangliang Jiang, Jeanine Umuhoza, Xu Li |
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| Rok vydání: | 2021 |
| Předmět: |
Driving factors
geography geography.geographical_feature_category Fire regime business.industry Central asia Land cover Management Monitoring Policy and Law Grassland Plant ecology Environmental science Livestock Physical geography business Active fire Earth-Surface Processes Water Science and Technology |
| Zdroj: | Journal of Arid Land. 13:500-515 |
| ISSN: | 2194-7783 1674-6767 |
| Popis: | Relatively little is known about fire regimes in grassland and cropland in Central Asia. In this study, eleven variables of fire regimes were measured from 2001 to 2019 by utilizing the burned area and active fire product, which was obtained and processed from the GEE (Google Earth Engine) platform, to describe the incidence, inter-annual variability, peak month and size of fire in four land cover types (forest, grassland, cropland and bare land). Then all variables were clustered to define clusters of fire regimes with unique fire attributes using the K-means algorithm. Results showed that Kazakhstan (KAZ) was the most affected by fire in Central Asia. Fire regimes in cropland in KAZ had the frequent, large and intense characters, which covered large burned areas and had a long duration. Fires in grassland mainly occurred in central KAZ and had the small scale and high-intensity characters with different quarterly frequencies. Fires in forest were mainly distributed in northern KAZ and eastern KAZ. Although fires in grassland underwent a shift from more to less frequent from 2001 to 2019 in Central Asia, vigilance is needed because most fires in grassland occur suddenly and cause harm to humans and livestock. |
| Databáze: | OpenAIRE |
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