对尼日利亚西南部Iroko (Milicia excelsa) (WELW) C.C. BERG繁殖限制因素的认识

J. A. Ugwu, A. Omoloye
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引用次数: 1

摘要

人口增长、发展和经济压力的问题导致该国自然资源的森林砍伐率很高。在森林中,米莉西亚·excelsa的消失速度令人震惊,西非是受这一趋势影响最严重的地区。由于其木材质量,米利西亚遭受了大量的开采,但为了可持续发展,它们没有被取代。在尼日利亚西南部的五个州(奥约州、奥贡州、翁多州、奥孙州和埃基蒂州)进行了一项调查,以评估一些社区对与米莉西亚·excelsa传播有关的问题的看法。从研究区域的五个州随机选择125名受访者进行结构化问卷调查。由于生长缓慢(35.2%)、丛林焚烧(10.4%)、宗教信仰(8.8%)和缺乏种子(45.6%),80%(80%)的受访者不种植蜜莉属植物。对水蛭瘿虫(Phytolyma lata)是水蛭繁殖的主要制约因素的认识较低(49.6%)。状态与被试对“卓越”的信念呈显著正相关(p<0.01)。然而,作为主要制约因素,状态和对红柳的认识呈负相关。因此,有必要通过向社区提供种植材料(种子)和提供有效防治措施的培训,鼓励社区通过农林业来繁殖大叶蝉。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Perception on the Constraints to Propagation of Iroko (Milicia excelsa) (WELW) C.C. BERG in South West Nigeria
The problem of population growth, development and economic pressure has resulted in a high rate of deforestation of the country’s natural resource. The rate of disappearance of Milicia excelsa in the forests is alarming with West Africa being the hardest hit by the trend. Milicia suffers heavy exploitation due to its wood quality but they are not replaced for sustainability. A survey was conducted in five states of South West Nigeria (Oyo, Ogun, Ondo, Osun and Ekiti) to assess the perceptions of some communities on the problems associated with propagation of Milicia excelsa. A structured questionnaire was administered to the 125 respondents randomly selected from the five states of the study area. Eighty percent (80%) of respondents do not plant Milicia species because of slow growth (35.2%), bush burning (10.4%), religious beliefs (8.8%) and lack of seeds (45.6%). Awareness of Iroko gall bug (Phytolyma lata) as major constraints to propagation of Milicia excelsa was low (49.6%). There was a significant positive correlation (p<0.01) between the states and people’s belief about Milicia excelsa. However, negative correlation was found between the states and awareness of P. lata as major constraints. Therefore, there is need to encourage the communities to propagate M. excelsa through agro forestry by providing them with planting materials (seed) and training on the available control measures for P. lata infestation on Milicia.
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