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The evaporation and micro-explosion characteristics of jatropha oil droplets under high temperature environment(673，773，873，973 and 1073K)were carried out using high-speed backlit imaging technique. The droplet evaporation characteristics of three main components of jatropha oil were analyzed separately. The results show that the micro-explosion of jatropha oil droplets is caused by the pyrolysis of internal components，and the micro-explosion intensity increases with the increase of ambient temperature. At 673K，the jatropha oil droplets undergo stable evaporation，which includes three stages of initial expansion，equilibrium evaporation and residue evaporation. At 773—1073K，the droplet undergoes micro-explosion，which includes four stages of initial expansion，equilibrium evaporation，micro-explosion evaporation and residual evaporation. When the ambient temperature is higher than 873K，the phenomenon of "vapor plume" and "vapor cloud" is observed for the first time，and the droplet evaporation rate significantly increases.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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