• Geographical Research
  • Vol. 39, Issue 10, 2379 (2020)
Xinmeng TU, Xuhong YANG*, Jingyuan ZHANG, Xinchen LUAN, and Kexin NING
Author Affiliations
  • School of Geography and Ocean Science, Nanjing University, Nanjing 210023, China
  • show less
    DOI: 10.11821/dlyj020190189 Cite this Article
    Xinmeng TU, Xuhong YANG, Jingyuan ZHANG, Xinchen LUAN, Kexin NING. Analyzing geographical characteristics of straw burning in China during 2014-2019[J]. Geographical Research, 2020, 39(10): 2379 Copy Citation Text show less

    Abstract

    Objectively and precisely depicting the spatial distribution characteristics of straw burning is of great significance to scientifically guide the prohibition of straw burning and improve the efficiency of administrative supervision. Based on Satsee-Fire point datasets in China during 2014-2019, natural environment and population-economy data, China's straw fire points database and nature-population-economics database established by terrain, social and economic data, this study used GIS analysis tools and mathematical statistics methods to examine the distribution characteristics of straw burning fire points in China during the 6 years under the influences of 7 factors in 3 aspects including terrain, public transport and the population-economy. The results showed that: (1) straw burning phenomenon concentrated in areas whose elevation was less than 250 m and gradient was less than 8°. And the number of fire points which are located on the north slope or the south slope accounted for 42.65% and 37.36% of the total, respectively. (2) Straw burning presented different spatial characteristics in the forbidden area of airports and railways. The farther away from the airport, the more common the straw burning was. Approximately 60% of the straw burning in the forbidden area of the airports took place 11-15 km away from the airport. However, the distribution of straw burning fire points in the forbidden area of railways were more balanced, and the internal circle was slightly more dense than the external region on the whole. In terms of space, the fire point density increased gradually with the increase of latitude. The number of fire points in the forbidden area of railways in Shanxi, Inner Mongolia, Hebei and the three provinces of Northeast China accounts for 76.88% of the total. (3) Nearly 70% of straw burning occurred in countied with a population density of less than 250 people /km2, while 58.17% occurred in counties with annual GDP less than 10 billion yuan. There was a negative correlation between the phenomenon of straw burning and the population density and GDP level of the county, that is, the larger the population density and the more developed the county economy was, the rarer the phenomenon of straw burning was.
    Xinmeng TU, Xuhong YANG, Jingyuan ZHANG, Xinchen LUAN, Kexin NING. Analyzing geographical characteristics of straw burning in China during 2014-2019[J]. Geographical Research, 2020, 39(10): 2379
    Download Citation