Fuelwood is becoming too expensive to buy and too scarce to gather .
薪材日益昂贵和稀缺,既买不起又拣不到。
Fuelwood forests belong to the renewable bioenergy and are well known as clean energy in the world . Mostly important , it is beneficial to the environmental protection and sustainable development of society .
薪炭林是可再生生物质资源,是世界公认的洁净能源,有利于环境保护和社会持续发展。
Two years before reij arrived , erik eckholm , of the times , had warned that the sahel faced a desperate fuelwood shortage - " the other energy crisis , " he called it .