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北京林业大学图书馆开发了建国42年来防护林、林业经济、林业总论、树木生理4个林业专题数据库,共收集林业科技信息1万余条.其中防护林专题库涉及水土保持林、防护固沙林、农田防护林、护路林、防洪护岸林、环境保护林、城市防护林等10大类46小类。价格450元,2张高密盘.国际标准书号为 ISBN7—302—01184—2/S.2.林业经济专题库涉及林业经济体制,林业政策法规,林业建设与发展,林业区划与林业规
The library of Beijing Forestry University has developed 4 forestry monograph databases covering shelterbelt, forestry economy, forestry and tree physiology for 42 years since the foundation of the People’s Republic of China, and collected more than 10,000 pieces of forestry science and technology information, of which the special shelter for shelterbelts relates to soil and water conservation forests, Shelterbelt, road embankment forest, flood protection and bank protection forest, environmental protection forest, urban shelter forest and other 10 categories 46 sub-categories. The price of 450 yuan, two high-density disk. ISBN ISBN7-302-01184-2 / S.2. Forestry Economics topics related to the forest economy, forestry policies and regulations, forestry construction and development, forestry and forestry planning