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2008年间在埃塞俄比亚高原调查房屋建筑木材消费和树种偏好情况,以及森林产品建设的策略和未来利用的可能性。对36座农家住户其中包括24座铁皮屋顶的房子和28座茅草盖顶的房子为对象进行调查,研究建筑木材的种类、材积和来源。结果表明,平均一座房屋的每57m2地面空间面积需消耗木材13.7m3。地面空间面积和木材消耗量的变化随房屋种类而变化。平均一座铁皮屋顶的房屋的每51.9m2地面空间面积需消耗木材16.8m3,平均一座茅草盖顶的屋顶每28.6 m2地面空间面积需消耗木材3.2 m3。家庭和地面空间面积的大小是影响建筑木材消耗的主要因素。平均一座住房需消耗木材种类分别为,9.3%非洲铅笔柏(Juniperusprocera)、5.6%墨西哥落羽杉(Cupressus lusitanica)、29.2%蓝桉(Eucalyptusglobulus)和26%赤桉(Eucalyptus camaldulensis)。由非洲铅笔柏(Juniperusprocera),墨西哥落羽杉和蓝桉来源的木材被限制。因此,目前木材短缺大约为59.5%。建议改进树木的种植方法来提高木材量,同时可研制土壤砖当作建筑材料的替代品。图2表5参28
2008 survey of wood consumption and tree species preference for building construction in the Ethiopian highlands, as well as the strategies for the construction of forest products and the possibility of future use. A survey was conducted on 36 peasant households, including 24 tin roofs and 28 thatched-roof houses, to study the type, volume and origin of construction timber. The results show that an average of 57m2 of land per area of a house will consume 13.7m3 of wood. The change in floor space and timber consumption varies with the type of housing. The average roof area of a roof consumes 16.8 m3 of wood per 51.9 m2 of surface space, and an average of thatched roofs consumes 3.2 m3 of timber per 28.6 m2 of ground space. The size of the home and ground space is a major factor affecting the consumption of construction timber. The average number of timber species consumed per house was 9.3% Juniperus procera, 5.6% Mexican Cupressus lusitanica, 29.2% Eucalyptus globulus and 26% Eucalyptus camaldulensis respectively. Wood derived from African cypress (Juniperus procera), Mexican Taxodium distichum, and Eucalyptus grandis is limited. Therefore, the current shortage of timber is about 59.5%. It is advisable to improve the planting of trees to increase the amount of wood and to develop soil bricks as an alternative to building materials. Figure 2 Table 5 参 28