我国农村每年消耗薪材1.8亿吨,约占农村总耗能的31.6%。由于所处地理环境及能源结构不同,薪材供需情况又有很大差异。北方干旱半干旱区自然条件差,植被覆盖度低,薪材的供需矛盾尤为突出。为了有效地保护天然植被,改善干旱地区的生态环境并切实解决群 In rural areas of China, 180 million tons of fuelwood is consumed each year, accounting for 31.6% of the total rural energy consumption. Owing to the geographical environment and energy structure in which they are located, there is a big difference in the supply and demand of fuelwood. The northern arid and semi-arid areas have poor natural conditions, low vegetation coverage and particularly contradictory fuel supply and demand. In order to effectively protect the natural vegetation, improve the ecological environment in arid areas and effectively solve the group