基于FORECAST模型的长白落叶松人工林经营措施对长期生产力的影响  

Using an ecosystem simulation model FORECAST to evaluate the effects of forest management strategies on long-term productivity of Korean larch plantations

作　　者：孙志虎[1] 毕永娟 牟长城[1] 蔡体久[1] 

机构地区：[1]东北林业大学生态研究中心,东北林业大学林学院

出　　处：《北京林业大学学报》2012年第6期1-6,共6页Journal of Beijing Forestry University

基　　金："948"国家林业局引进项目(2009-4-43);"十二五"国家科技支撑计划项目(2011BAD37B010204;2011BAD08B0102);林业公益性行业科研专项(200804001);黑龙江省科技计划项目(GA09B201-08);黑龙江省博士后科研启动金资助项目(LBH-Q09180);中央高校基本科研业务费专项资金资助项目(DL09EA03-2)

摘　　要：为了对东北地区东部落叶松人工林的多代经营提供指导,以黑龙江省孟家岗林场的长白落叶松人工林为对象,采用森林生态系统经营管理模型FORECAST,从轮伐期长度、林地枯落物的管理和采伐剩余物的处理方面,评价不同经营措施下落叶松人工林的生物量、养分动态和长期生产力。结果表明:常规森林利用方式下维持落叶松人工林长期生产力的轮伐期应大于35a;落叶松林地枯落物的保留可以显著提高各种轮伐期长度时的林地生产力,短轮伐期时作用效果尤为明显;全面保留采伐剩余物可以维持不同轮伐期条件下落叶松人工用材林的长期生产力。The dynamics of biomass, nutrient storage and long-term productivity of Korean larch plantations growing in Mengjiagang Forest Farm of Heilongjiang Province, northeastern China, following continuing rotation cropping, was studied by employing a ecosystem simulation model （FORECAST, forestry and environmental change assessment） of incorporating rotation length, forest floor litter management and logging slash treatment. The conclusion was the followings： the suitable rotation of sustaining the long- term productivity under the general treatments should be more than 35 years ; the soil productivity of larch plantation using different felling cycles could be improved by reserving litter fall, and was especially obvious to the short felling circle; the treatment of keeping all logging slash could sustain long-term productivity of larch plantation using different felling cycle.

关 键 词：长白落叶松 人工林 生态系统经营 长期生产力 FORECAST模型 

分 类 号：S750[农业科学—森林经理学] S718.556[农业科学—林学]