title: The Influence of Land Use on the Grassland Fire Occurrence in the Northeastern Inner Mongolia Autonomous Region, China.
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.
authors.affiliation: Provincial Laboratory of Resources and Environmental Research for Northeast China, Northeast Normal University, Changchun 130024, China. li0p578@nenu.edu.cn.
authors.forename: Yiping
authors.initials: Y
authors.lastname: Li
authors.affiliation: Provincial Laboratory of Resources and Environmental Research for Northeast China, Northeast Normal University, Changchun 130024, China. zhaojj662@nenu.edu.cn.
authors.forename: Jianjun
authors.initials: J
authors.lastname: Zhao
authors.affiliation: Provincial Laboratory of Resources and Environmental Research for Northeast China, Northeast Normal University, Changchun 130024, China. guoxy914@nenu.edu.cn.
authors.forename: Xiaoyi
authors.initials: X
authors.lastname: Guo
authors.affiliation: Provincial Laboratory of Resources and Environmental Research for Northeast China, Northeast Normal University, Changchun 130024, China. zhangzx040@nenu.edu.cn.
authors.forename: Zhengxiang
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: Jilin Surveying and Planning Institute of Land Resources, Changchun 130061, China. tangang156@163.com.
authors.forename: Gang
authors.initials: G
authors.lastname: Tan
authors.affiliation: Jilin Surveying and Planning Institute of Land Resources, Changchun 130061, China. yangjh123@hotmail.com.
authors.forename: Jihong
authors.initials: J
authors.lastname: Yang
keywords: grassland fire; human activity; land use; land use degree