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| 长白落叶松人工林生物量的结构与分布 | |
| 引用本文： | 轩志龙,张启昌,葛丽丽,何怀江,徐敏敏,徐维胜.长白落叶松人工林生物量的结构与分布[J].林业资源管理,2013(1):53-57. |
| 作者姓名： | 轩志龙 张启昌 葛丽丽 何怀江 徐敏敏 徐维胜 |
| 作者单位： | 1. 北华大学,吉林吉林,132013 2. 北京林业大学,北京,100083 3. 吉林省蛟河林业试验区管理局,吉林蚊河,132517 4. 吉林省白河林业局,吉林安图,133613 |
| 基金项目： | 中央财政林业科技推广示范跨区域重点推广示范项目，吉林省重大科技发展计划项目 |
| 摘 要： | 采用径级标准木和样方收获法,对24a生长白落叶松人工林的生物量和生产力进行了研究。结果表明:24a生长白落叶松人工林分生物量为120.55t/hm2,年平均净生产力为8.47 t/(hm2.a),生态系统的生物量分配格局为乔木层>枯枝落叶层>下木层>草本层,其中乔木层生物量为102.17t/hm2,净生产力为8.09t/(hm2.a),其生物量分配格局为树干>树根>树皮>树枝>树叶;在林分产量结构方面,8 m以下树干生物量占其总量的81.80%,树枝和树叶的生物量主要分布在10～14 m,分别占树枝和树叶总生物量的71.11%和73.05%,地下根系生物量分配格局为粗根(直径大于5 cm)>根头>中根(0.5～5 cm)>细根(<0.5cm),粗根生物量占根总生物量的53.98%。 |
| 关 键 词： | 长白落叶松 人工林 生物量 生产力 |
Biomass Structure and Distribution of Korean Larch Plantations |
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| XUAN Zhilong , ZHANG Qichang , GE Lili , HE Huaijiang , XU Minmin , XU Weisheng.Biomass Structure and Distribution of Korean Larch Plantations[J].Forest Resources Management,2013(1):53-57. | |
| Authors: | XUAN Zhilong ZHANG Qichang GE Lili HE Huaijiang XU Minmin XU Weisheng |
| Institution: | 1.Beihua University,Jilin 132013,China;2.Jiaohe Forestry Experiment Administration Bureau in Jilin Province,Jiaohe 132517,China;3.Beijing Forestry University,Beijing 100083,China;Baihe Forestry Bureau of Jilin Province,Antu 132517,China) |
| Abstract: | The biomass and net productivity of Korean larch(Larix olgensis)plantations were investigated through the mean sample tree of diameter class and sample quadrat.The results showed the biomass of Korean larch was 120.55t/hm2 and that the annual net productivity was 8.47t/(hm2·a).The biomass of the ecosystem was distributed descendingly as follows:tree layer>litter>undergrowth>herb.The total biomass and net productivity of tree layer were 102.17 t/hm2 and 8.09t/(hm2·a),respectively.The distribution pattern of organic biomass was stem > root>bark> branch>leaf.With respect to the production structure,stems under 8m accounted for up to 81.8% of total stem biomass,branches between 10m to 14m accounted for up to 38.37% of total branch biomass,and leaves between 10m to 14m accounted for up to 73% of total leaf biomass.Coarse root took a proportion of up to 53.98% of total root biomass.The root biomass was distributed in a descending manner as coarse root(>5cm)> root stumpage> medium root(0.5~5cm)> fine root(<0.5cm). |
| Keywords: | Korean larch plantation biomass productivity |
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