【摘要】 在黑龙江省草原地区林甸、虎林和嫩江三个地区分别设置样地，研究三个地区混合草本种类可燃物燃烧性和10种草本燃烧性，采用外业调查、采样和室内测试相结合的方法，对黑龙江省草本可燃物的燃点、热值、灰分、绝干含水率等因子进行分析，采用层次分析法赋予权重对草原草本燃烧性进行排序。结果表明，黑龙江草原混合草本可燃物绝干含水率由小到大依次为林甸<嫩江<虎林；载量由小到大依次为林甸<嫩江<虎林；灰分由小到大依次为嫩江<虎林<林甸；燃点由小到大依次为虎林<林甸<嫩江；热值由小到大依次为虎林<嫩江<林甸，从综合燃烧性量化指标排序，燃烧性林甸<嫩江<虎林，虎林燃烧性量化指标最大，草原发生火灾的可能性相对较低。10种草本可燃物，绝干含水率、灰分百分含量最低的是苔草，最高的是山莴苣；热值最小的是山莴苣，最高是芦苇；草本可燃物燃点最低是山莴苣（243℃），最高的是地榆(252℃)。从综合燃烧性量化指标排序，苔草燃烧性量化值最小，燃烧性最强，山莴苣燃烧性量化值最大，燃烧性最弱。更多还原

【Abstract】 The flammability of mixed herb species and 10 herbs fuel in grasslands of LD, HL, NJ in Heilongjiang province were studied. Based on field investigation and indoor combustion, the physical and chemical properties such as ashcontent, ignition point and calorific value of fuel in grasslands of LD, HL,NJ in Heilongjiang province and based on SPSS18.0 and Exel WPS software were analyzed, used the analytic hierarchy process analysis to analyze the physical and chemicalproperties to obtain the fuel flammability. Moisture rates of fuel in the grassland of Heilongjiang province from weak to strong were:LD, NJ,HL; Loads from weak to stronge were LD, NJ,HL; Ash contents from weak to strong were NJ, HL,LD; Ignition points from weak to strong were: HL,LD, NJ; Calorific values from weak to strong were: HL,LD, NJ; According to the comprehensive index of flammability performance combined with the fuel physical and chemical properties, the flammability of grasslands in Heilongjiang province from weak to strong were: LD, NJ,HL; The mininue values of moisture rate and ash content were Carex tristachya,maxmum values were Mulgedium sibiricum; The mininue value of calorific values was Mulgedium sibiricum, maxmum value was Phragmites australis; The mininue value ofIgnition points was Mulgedium sibiricum, maxmum value was Radix sanguisorbae. According to the comprehensive index of flammability performance combined with the fuel physical and chemical properties, Carex tristachya flammability of herbs was strong, Mulgedium sibiricum flammability of herbs was weak.更多还原