论文部分内容阅读
一九七九年十月十五日至二十日,由联合国粮农组织主持,在葡萄牙首都里斯本召开了“温带及地中海地区速生阔叶树种技术讨论会”。参加会议的有26个国家169名代表。会议是为了讨论温带和地中海两个地区的主要造林树种(如杨树、桉树、泡桐、剌槐、榆树、臭椿,桤木、柳树、栎类、板栗、槭树、鹅掌秋、金合欢等等)的造林及栽培技术、良种选
From October 15 to October 20, 1979, hosted by the Food and Agriculture Organization of the United Nations, a seminar on the technology of fast-growing broadleaf tree species in temperate and Mediterranean regions was held in Lisbon, capital of Portugal. 169 delegates from 26 countries attended the meeting. The meeting was held to discuss the major afforestation species in temperate and Mediterranean regions (eg poplar, eucalyptus, paulownia, acacia, elm, Ailanthus, alder, willow, oak, chestnut, maple, goosefoot, acacia, etc. Etc.) Afforestation and cultivation techniques, seed selection