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 .

在瑞什来这两年前，《时代周刊》的康瑞（erikeckholm）就曾警告称，萨赫勒面临薪材严重短缺的状况他称其为“另一种能源危机”。