Optimal Selection of Raw Material Forest Species for Edible Fungi in Guizhou Province

A comprehensive evaluation system,which focused on optimal selection of raw material forest species for edible fungi,was established by combination of Analytic Hierarchy Process(AHP)and Experts Grading Method(EGM).The evaluation system had 4 indices of grade I and 12 indices of grade II.Among the 12 indices of grade II,the weighted values of production quality of edible fungi P2(0.2874),usable time P7(0.1873),annual average increment P8(0.1873),edible fungi production suitability P1(0.0958)were larger than the values of others.Based on the comprehensive evaluation system,this study analyzed and screened 47 broadleaf species of 40 genera of 25 families.There were 16 broadleaf species having the comprehensive evaluation scores of equal to or greater than2.4000,which were available as major tree species for edible fungi development of Guizhou Province,especially species such as Liriodendron chinense,Quercus acutissima,Alnus cremastogyne,Betula luminfera,Elaeocarpus duclouxii,Elaeocarpus sylvestris,Choerospondias axillaris.The 10 broadleaf tree species with comprehensive evaluation score of 2.1000≤Y 2.4000 were recommended as candidates for edible fungi production,while the 21 broadleaf species with the comprehensive evaluation score of less than 2.1000 were not recommended.

贵州省食用菌原料林优良树种筛选初步研究

采用层次分析法(AHP)和专家评分相结合的方法,建立食用菌原料林优良树种筛选综合评价体系。评价体系包含4个Ⅰ级指标和12个Ⅱ级指标,12个Ⅱ级指标中以生产的食用菌品质P2(0.287 4)、采伐利用年限P7(0.187 3)、蓄积年平均生长量P8(0.187 3)、适用于食用菌生产P1(0.095 8)处于重要地位。利用评价体系,对初选的25科40属47种阔叶树种进行评价,其中综合评价指数≥2.400 0的16个树种,可作为贵州食用菌原料林的主要树种加以应用。其中,鹅掌楸、麻栎、桤木、光皮桦、褐毛杜英、山杜英、南酸枣7个树种应大力发展。综合评价指数在2.100 0≤Y<2.400 0之间的10个树种作为候选树种,综合评价指数<2.100 0的21个树种建议不用于食用菌生产。

日本光叶楮引种试验及示范推广技术研究

日本光叶楮是优质造纸原料树种,具纤维长、制浆白度高、得浆率高、加工节水节碱和速生、丰产、超短期采伐等优良特点。笔者从2005年始,分别在当地的平原、丘陵和低丘岗地等不同地形对该树种开展了物候观察、不同种植土类、不同栽植密度、不同超短伐期和纸浆质量分析及示范推广相关问题的试验研究,旨在为全省大面积推广该树种提供技术依据。

中密度纤维板板材表面白色缺陷探究

利用光学显微镜、电子显微镜、X射线元素分析对中密度纤维板表面白色缺陷处观察分析,同时对比生产原料树种,确定了缺陷来源。通过控制原料收购和增加削片工序对树种的分检以消除缺陷,保证了产品表面质量。