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

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.


The annual distribution of active grassland fires in the study area. The line shows the number of active grassland fires; the bar shows the active grassland fires frequency.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC5375723&req=5

sensors-17-00437-f003: The annual distribution of active grassland fires in the study area. The line shows the number of active grassland fires; the bar shows the active grassland fires frequency.

Mentions: Grassland fires in the study area varied greatly in each year. As shown in Figure 3, the highest frequency of grassland fires occurred in April, with the frequency of 24.77%, followed by March and September, with frequencies of 19.38% and 15.28% respectively. The frequencies of May and October were also relatively high, which were 13.35% and 7.57% respectively. While the grassland fires frequencies in February, June, July, August and November were relatively low, and In January and December, there were almost no grassland fires.


The Influence of Land Use on the Grassland Fire Occurrence in the Northeastern Inner Mongolia Autonomous Region, China
The annual distribution of active grassland fires in the study area. The line shows the number of active grassland fires; the bar shows the active grassland fires frequency.
© Copyright Policy - open-access
Related In: Results  -  Collection

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

sensors-17-00437-f003: The annual distribution of active grassland fires in the study area. The line shows the number of active grassland fires; the bar shows the active grassland fires frequency.
Mentions: Grassland fires in the study area varied greatly in each year. As shown in Figure 3, the highest frequency of grassland fires occurred in April, with the frequency of 24.77%, followed by March and September, with frequencies of 19.38% and 15.28% respectively. The frequencies of May and October were also relatively high, which were 13.35% and 7.57% respectively. While the grassland fires frequencies in February, June, July, August and November were relatively low, and In January and December, there were almost no grassland fires.

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.