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中国农学通报

中国农学通报 ›› 2016, Vol. 32 ›› Issue (25): 16-21.doi: 10.11924/j.issn.1000-6850.casb16030011

• 林学 园艺 园林 • 上一篇    下一篇

仁用杏林生物量研究

刘春梅,毕 君,李联地,任启文,李玉灵   

  1. 河北农业大学研究生院,河北省林业科学研究院,河北省林业科学研究院,河北省林业科学研究院,河北农业大学林学院
  • 收稿日期:2016-03-01 修回日期:2016-06-04 接受日期:2016-06-06 出版日期:2016-08-29 发布日期:2016-08-29
  • 通讯作者: 毕 君
  • 基金资助:
    林业公益性行业科研专项子课题“华北地区5个优势树种分林龄和起源的生态服务功能分布式观测研究”(201204101-8)；河北省科技支撑计划“小五台山森林群落特征、功能及调控技术研究”(11240615D)资助。

Biomass of Kernel-apricot Plantation

  • Received:2016-03-01 Revised:2016-06-04 Accepted:2016-06-06 Online:2016-08-29 Published:2016-08-29

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摘要： 为探究退耕还林树种仁用杏的固碳价值,进行了仁用杏不同林龄生物量特征研究。采用标准木法(乔木层)和样方收获法(草本层、枯落物层)分别获取6a(初产期)、12a(盛产期)、18a(盛产后期)张家口小五台山地区仁用杏生物量,并分析其结构组成、分配规律和变化趋势。结果表明：(1)不同林龄仁用杏林的总生物量随着年龄的增大而增加,6a、12a、18a仁用杏生物量分别为15.81t.hm-2、31.43t.hm-2、50.53t.hm-2；(2)在整个生态系统中,乔木层生物量占绝对优势,分配率高达83.72%~96.11%,按林龄从小到大分别为13.11t.hm-2、30.19t.hm-2、44.97t.hm-2,其次为草本层,占1.46%~10.82%,枯落物层所占比重最小,仅为2.43%~5.46%；(3)不同林龄乔木层各器官生物量分配规律不同,6a为干>枝>根>叶>果实,12a和18a均表现为枝>根>干>果实>叶。仁用杏器官生物量分配规律与用材林及其他经济林均有较大差异。

关键词: 水产品, 水产品, 消费水平, 消费特征, 不同地区

Abstract: In order to explore the value of carbon storage of returning farmland to forest tree species, the biomass and its allocation of Kernel-apricot plantations at different forest ages were studied .The sample trees (tree layer) and sample plots (herb and litter layer)harvest method were adopted to get the biomass at different ages (6a, 12a, 18a)of Kernel-apricot plantations in Xiaowutai region of zhangjiankou The results showed that: (1) The stand biomass was 15.81t.hm-2、31.43t.hm-2、50.53t.hm-2at 6a, 12a and 18a, respectively; (2)Most biomass(83.72%~96.11%) of Kernel-apricot plantation were concentrated in the tree layer, and increased with ages; the next was the herb layer made up 1.46% to 10.82% ; litter biomass contributed smallest,just made up 2.43% to5.46%; (3) The organic biomass allocation was difference between young and middle as well as old plantations, and differ from other tree spices. The organic biomass allocation were stem>branch>root>leaf>fruit at 6a, and branch>root>stem>fruit>leaf at 12a and 18a, respectively.

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