中蒙边境典型草原草本可燃物燃烧性研究

【目的】 研究中蒙边境典型草原地区二连浩特市、东乌旗和新巴尔虎右旗草原可燃物的燃烧性能,对典型地区草原可燃物燃烧性能进行对比,根据草原可燃物理化指标进行燃烧性排序并分析,为中蒙边境地区草原火灾防控提供参考。【方法】 采用外业调查和室内燃烧相结合的方法,对中蒙边境地区试验点典型草原草本可燃物的粗脂肪、灰分、燃点、热值等理化指标进行分析,借助SPSS 18.0和Origin 2018等软件,对理化指标进行主成分分析并进行燃烧性排序。【结果】 中蒙边境典型地区草原可燃物粗脂肪含量大小顺序为:东乌旗>新巴尔虎右旗>二连浩特市。各试验点可燃物热值大小顺序为:新巴尔虎阿右旗>二连浩特市>东乌旗。各试验点可燃物燃点大小顺序为:新巴尔虎右旗>东乌旗>二连浩特市。各试验点可燃物灰分大小顺序为:二连浩特市>东乌旗>新巴尔虎右旗。根据燃烧性能综合得分结合可燃物理化特性,中蒙边境地区各试验点典型草原可燃物燃烧性大小顺序为:东乌旗>二连浩特市>新巴尔虎右旗。【结论】 中蒙边境典型草原区二连浩特市、东乌旗和新巴尔虎右旗地区中新巴尔虎右旗草原可燃物燃烧性最弱,火灾危险性最低,东乌旗由于可燃物性质和气象条件因素等综合作用导致此地区草原可燃物燃烧性最强,火灾危险性最高,需重点防范。

Study on flammability of herbaceous fuel in typical grassland of China-Mongolia border

【Objective】 This paper studied the flammability of fuel in typical grasslands of Erenhot City (EC), East Wujimgin Banner (EWB) and Xin Barag Right Banner (XBRB) in China-Mongolia border. Studying the flammability of fuel in typical grasslands is of great significance for controlling and prevention of the occurrence of grassland fires in China-Mongolia border. 【Method】 Based on field investigation and indoor combustion, analyzed the physical and chemical properties such as crude fat, ash content, ignition point and calorific value of fuel in typical grasslands in China-Mongolia border and based on SPSS 18.0 and Origin 2018 software, used the principal component analysis to analyze the physical and chemical properties to obtain the fuel flammability. 【Result】 Crude fat of fuel in the typical grasslands in China-Mongolia border from strong to weak is EWB, XBRB, EC. Calorific value from strong to weak is XBRB, EC, EWB. Burning point from strong to weak is XBRB, EWB, EC. Ash content from strong to weak is EC, EWB, XBRB. According to the comprehensive index of flammability performance combined with the fuel physical and chemical properties, the flammability of typical grasslands in China-Mongolia border from strong to weak is EWB, EC, XBRB. 【Conclusion】 The typical grassland on the border between China and Mongolia in the areas of EC, EWB and XBRB, fuel flammability in XBRB grassland is weakness and has the lowest fire risk; Based on fuel properties and meteorological conditions, EWB has the highest fire risk and should take prevention measures.