山西省优良乡土阔叶树种研究初报

摘要

Fine native hardwood species of Quercus liaotungensis, Ailanthus altissima, Gleditsia sinensis had strong adapta-bility and wide distribution in Shanxi Province , but rarely were used in the afforestation .In past six years , fine native hard-wood species distribution was investigated in Shanxi Province , plus tree 641 strains of 14 fine native hardwood species were preserved , and the plus tree files were established .By experiments , the asexual reproduction methods of 13 species were mastered, 15 hectares breeding nursery , 2.2 hectares cutting orchard , 4 hectares gene pools , 45 hectares test forest were constructed to preliminarily select 35 fine clones.approval of a new Quercus liaotungensis species and application of a new Gleditsia sinensis species were completed .42 hectares seed stands of Quercus liaotungensis were established .Approval of two local standards of Technical Regulations for Quercus liaotungensis Seedling and Construction Technical Regulation for Oaks Seed Stands was completed .%辽东栎、臭椿、皂荚等优良乡土阔叶树种在山西省分布广、适应性强，但在造林绿化中应用很少。课题组科技人员经过6 a时间，在山西省境内调查了主要优良乡土树种的分布情况，收集保存了14种优良乡土阔叶树种的优树共641株，并建立了优树档案；通过试验掌握了13种树种的无性繁殖方法，建设繁育圃15 hm2，采穗圃2.2 hm2，基因库4 hm2，测试林45 hm2，初步选择出优良无性系35个；审定了辽东栎1个新品种，申报了皂荚1个新品种；建立辽东栎母树林42 hm2，制定了《辽东栎育苗技术规程》和《栎类母树林建设技术规程》2个地方标准。