| 沿海沙质岸黑松防护林的生物量及生产力 |
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| 引用本文： | 许景伟,李传荣,王卫东,乔勇进,程鸿雁,王月海.沿海沙质岸黑松防护林的生物量及生产力[J].东北林业大学学报,2005,33(6):29-32. |
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| 作者姓名： | 许景伟 李传荣 王卫东 乔勇进 程鸿雁 王月海 |
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| 作者单位： | 北京林业大学,北京,100083;山东农业大学;山东省林业科学研究院 |
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| 摘 要： | 对沿海沙质岸黑松防护林的生物量及生产力研究表明，黑松林分总生物量为95．09t／hm^2，乔木层总生物量为88．34t／hm^2。其各层次生物量为乔木层〉枯枝落叶层〉下木层〉草本层，乔木层各器官生物量为树干〉树根〉树枝〉树叶。在同一林分中，不同径阶林木生物量差异明显，且呈偏正态分布，表明该林分径阶生物量结构不合理，急需进行抚育间伐，要及时调整密度，提高群落的整体效应和稳定性。沙质岸黑松林分净生产力较高．表明黑松仍是滨海地区目前不可替代的优良防护林树种。
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| 关 键 词： | 生物量 净生产力 黑松 防护林 沙质岸 |
| 收稿时间： | 2005-06-28 |
| 修稿时间： | 2005-06-28 |
Biomass and Productivity of Pinus thumbergii Protective Forests in Sandy Coastal Area |
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| Xu Jingwei,Li Chuanrong,Wang Weidong,Qiao Yongjin,Cheng Hongyan,Wang Yuehai.Biomass and Productivity of Pinus thumbergii Protective Forests in Sandy Coastal Area[J].Journal of Northeast Forestry University,2005,33(6):29-32. |
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| Authors: | Xu Jingwei Li Chuanrong Wang Weidong Qiao Yongjin Cheng Hongyan Wang Yuehai |
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| Institution: | 1.Beijing Forestry University, Beijing 100083, P, R. China; 2.Shandong Agricultural University ;3.Shandong Academy of Forestry |
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| Abstract: | The biomass and productivity of Pinus thumbergii protective forests were studied in sandy coastal area. Results showed that the total biomass of Pinus thumbergii forests was 95.09 t/hm^2 and that of the arbor stratum was 88.34 t/hm^2. The biomass sequence of different strata from high to low was arbor, litter, shrub and herb, and that of the arbor layer was trunk, root, branch and leaf. Within the same stand, the biomass of different diameter classes varied a lot, and showed quasinormal distribution. It indicates that the structure of biomass is unreasonable, and thinning and density regulation need to be conducted right away to enhance its integral effect and stability. Nowadays, the Pinus thumbergii still is an irreplaceable species due to its higher net productivity in this region. |
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| Keywords: | Biomass Net productivity Pinus thumbergii Protective forests Sandy coastal area |
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