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利用气候、土壤、地形和土壤等数据,运用ArcGIS的空间叠加分析功能,分析了中国木薯乙醇的分布生产潜力及空间分布。结果表明:中国适宜木薯分布的区域主要在广西、广东、福建、云南、江西和海南等广大南部地区,这些地区的木薯乙醇生产潜力也最高;适宜木薯种植的未利用地面积较少,仅有1.53×104hm2,其乙醇生产潜力仅能满足目前中国E10汽油约1.0%的乙醇需求量;要满足中国目前E10汽油的全部乙醇需求,需要扩大目前木薯总种植耕地面积的4.4～5.7倍,而中国的粮食安全需求则限制了该目标的实现;中国木薯乙醇满足未来生物乙醇的需求前景不容乐观,中国木薯乙醇企业的发展规划要充分考虑原料的可获性,切不可盲目扩大生产。
Based on the data of climate, soil, topography and soil, the spatial distribution analysis of cassava ethanol in China was analyzed by using the spatial superposition analysis function of ArcGIS. The results showed that the suitable cassava distribution areas in China were mainly in the southern part of Guangxi, Guangdong, Fujian, Yunnan, Jiangxi and Hainan. The cassava ethanol production potential in these areas was also the highest. The unused land suitable for cassava planting was small, 1.53 × 104hm2. Its ethanol production potential can only meet the current demand of about 1.0% of E10 gasoline in China. To meet the current demand of E10 gasoline in China, it needs to expand 4.4 ~ 5.7 times of the total cultivated land area of cassava. However, China Of the demand for food security has limited the realization of this goal; China’s cassava ethanol to meet the future demand for bio-ethanol is not optimistic about the prospects of China’s cassava ethanol business development plan to give full consideration to the availability of raw materials, must not blindly expand production.