Ogunkunle A T J, Oladele F A
Department of Pure and Applied Biology, Ladoke Akintola University of Technology, Ogbomoso, P.N.B. 400, Nigeria.
Environ Monit Assess. 2004 Feb;91(1-3):223-36. doi: 10.1023/b:emas.0000009238.10891.c0.
A survey of both urban and rural communities in five Local Government Areas (LGA) of Oyo State in Nigeria showed that 76% of households depend on fuelwood for cooking. The total annual wood consumption for fuelling by bread bakers, food sellers and in domestic cooking was 5984 metric tons for the region. The sawmills in the study area also convert 79 889 metric tons of wood yearly into boards of different grades. Total wood consumption outstrips the quantity of wood extracted from the forests. The balance of over 60 000 metric tons of wood is sourced from neighbouring forest locations. The quantity of wood harvested for various purposes did not show a significant difference (p < 0.05) among the five LGAs. However, a significant difference at p > 0.05 existed in the quantity of wood actually consumed in the various LGAs. Moreover. the number of trees cut down outstrips the number of trees planted with a significant difference (p > 0.05) between the mean quantity of wood removed from the forests and the mean quantity replaced by reforestation. The practice in the study area was that of 'cut-eight-plant-one' which is at variance to the much publicized operation 'cut-one-plant-one'. The study concludes that residents of Ogbomoso in Nigeria have not shown positive disposition to tree planting. It therefore suggests scientific tree conservation strategies aimed at improved burning of fuel wood and maximized use of timber products as complementary efforts to enforced tree planting for conservation of our forests.
对尼日利亚奥约州五个地方政府辖区(LGA)的城乡社区进行的一项调查显示,76%的家庭依靠薪柴做饭。该地区面包师、食品销售商以及家庭烹饪的年木材总消耗量为5984公吨。研究区域内的锯木厂每年还将79889公吨木材加工成不同等级的木板。木材总消耗量超过了从森林中采伐的木材数量。超过60000公吨的木材差额来自邻近的森林地区。五个地方政府辖区用于各种目的的木材采伐量没有显著差异(p<0.05)。然而,各地方政府辖区实际消耗的木材量存在显著差异(p>0.05)。此外,砍伐的树木数量超过了种植的树木数量,从森林中采伐的木材平均量与重新造林所替代的平均量之间存在显著差异(p>0.05)。研究区域的做法是“砍八植一”,这与广为宣传的“砍一植一”行动不同。该研究得出结论,尼日利亚奥贡莫索的居民对植树没有积极的态度。因此,它建议采取科学的树木保护策略,旨在改善薪柴燃烧并最大限度地利用木材产品,作为加强植树以保护我们森林的补充措施。