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The Influence of Land Use on the Grassland Fire Occurrence in the Northeastern Inner Mongolia Autonomous Region, China

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ABSTRACT

Grassland, as one of the most important ecosystems on Earth, experiences fires that affect the local ecology, economy and society. Notably, grassland fires occur frequently each year in northeastern China. Fire occurrence is a complex problem with multiple causes, such as natural factors, human activities and land use. This paper investigates the disruptive effects of grassland fire in the northeastern Inner Mongolia Autonomous Region of China. In this study, we relied on thermal anomaly detection from the Moderate Resolution Imaging Spectroradiometer (MODIS) sensor to identify fire occurrences, and land use data were acquired by Landsat Thematic Mapper/Enhanced Thematic Mapper (TM/ETM). We discussed the relationship between land use and the spatial distribution of grassland fires. The results showed that the impact of land use on grassland fires was significant. Spatially, approximately 80% of grassland fires were clustered within 10 km of cultivated land, and grassland fires generally occurred in areas of intense human activity. The correlation between the spatial distribution of grassland fires and the land use degree in 2000, 2005 and 2010 was high, with R2 values of 0.686, 0.716, 0.633, respectively (p < 0.01). These results highlight the importance of the relationship between land use and grassland fire occurrence in the northeastern Inner Mongolia Autonomous Region. This study provides significance for local fire management and prevention.

No MeSH data available.


Active grassland fire events in the study area: (a) 2000–2002; (b) 2003–2007; (c) 2008–2012.
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sensors-17-00437-f002: Active grassland fire events in the study area: (a) 2000–2002; (b) 2003–2007; (c) 2008–2012.

Mentions: The spatial distribution of active grassland fires within the three periods is shown in Figure 2. A total of 1766, 2306 and 1791 active grassland fires occurred from 2000 to 2002, from 2003 to 2007, and from 2008 to 2012, respectively. The number of fire events fluctuated in different periods, but the spatial distribution remained nearly unchanged. Most active fires were distributed in the north of the study area, and fewer were observed in the south of the study area.


The Influence of Land Use on the Grassland Fire Occurrence in the Northeastern Inner Mongolia Autonomous Region, China
Active grassland fire events in the study area: (a) 2000–2002; (b) 2003–2007; (c) 2008–2012.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC5375723&req=5

sensors-17-00437-f002: Active grassland fire events in the study area: (a) 2000–2002; (b) 2003–2007; (c) 2008–2012.
Mentions: The spatial distribution of active grassland fires within the three periods is shown in Figure 2. A total of 1766, 2306 and 1791 active grassland fires occurred from 2000 to 2002, from 2003 to 2007, and from 2008 to 2012, respectively. The number of fire events fluctuated in different periods, but the spatial distribution remained nearly unchanged. Most active fires were distributed in the north of the study area, and fewer were observed in the south of the study area.

View Article: PubMed Central - PubMed

ABSTRACT

Grassland, as one of the most important ecosystems on Earth, experiences fires that affect the local ecology, economy and society. Notably, grassland fires occur frequently each year in northeastern China. Fire occurrence is a complex problem with multiple causes, such as natural factors, human activities and land use. This paper investigates the disruptive effects of grassland fire in the northeastern Inner Mongolia Autonomous Region of China. In this study, we relied on thermal anomaly detection from the Moderate Resolution Imaging Spectroradiometer (MODIS) sensor to identify fire occurrences, and land use data were acquired by Landsat Thematic Mapper/Enhanced Thematic Mapper (TM/ETM). We discussed the relationship between land use and the spatial distribution of grassland fires. The results showed that the impact of land use on grassland fires was significant. Spatially, approximately 80% of grassland fires were clustered within 10 km of cultivated land, and grassland fires generally occurred in areas of intense human activity. The correlation between the spatial distribution of grassland fires and the land use degree in 2000, 2005 and 2010 was high, with R2 values of 0.686, 0.716, 0.633, respectively (p < 0.01). These results highlight the importance of the relationship between land use and grassland fire occurrence in the northeastern Inner Mongolia Autonomous Region. This study provides significance for local fire management and prevention.

No MeSH data available.