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植物研究 ›› 2016, Vol. 36 ›› Issue (4): 573-580.doi: 10.7525/j.issn.1673-5102.2016.04.013

• 研究报告 • 上一篇    下一篇

吕梁山区3种人工林植被、凋落物生物量差异特征及其与土壤养分的关系

李慧1, 王百田1,2, 曹远博1, 刘青青1, 李德宁1   

  1. 1. 北京林业大学水保学院, 北京 100083;
    2. 水土保持与荒漠化防治教育部重点实验室, 北京 100083
  • 收稿日期:2015-12-14 出版日期:2016-07-15 发布日期:2016-06-15
  • 通讯作者: 王百田,E-mail:wbaitian@bjfu.edu.cn E-mail:wbaitian@bjfu.edu.cn
  • 作者简介:李慧(1991-),女,硕士研究生,主要研究方向为林业生态工程。
  • 基金资助:
    中科院战略先导专项专题"暖温带落叶阔叶混交林区域山西中部森林固碳现状、速率和潜力研究"(XDAO5050203-04-01)

Difference Feature of Planted Vegetation Biomass and Litter Biomass for Three Plantations and Their Relationship with Soil Nutrients in Lvliang Mountainous Region

LI Hui1, WANG Bai-Tian1,2, CAO Yuan-Bo1, LIU Qing-Qing1, LI De-Ning1   

  1. 1. School of Soil and Water Conservation, Beijing Forestry University, Beijing 100083;
    2. Key Laboratory of Soil and Water Conservation and Desertification Combating, Ministry of Education, Beijing 100083
  • Received:2015-12-14 Online:2016-07-15 Published:2016-06-15
  • Supported by:
    Supported by the Chinese Academy of Sciences strategic pilot project "Study on the status,rate and potential of forest carbon sequestration in the central area of the warm temperate deciduous broad leaved mixed forest in Shanxi"(No.XDAO5050203-04-01)

摘要: 通过样地调查和土壤样品采集分析的方法,测定了山杨、油松和辽东栎3种人工林林下植被(灌木、草本)的活地被的生物量以及地表凋落物的生物量和土壤养分的总概况,并探讨了它们之间的相关性。结果表明:活地被生物量表现为油松2.3547 t·hm-2> 山杨2.0785 t·hm-2> 辽东栎1.1373 t·hm-2,地表凋落物生物量山杨4.7975 t·hm-2> 辽东栎2.1399 t·hm-2> 油松0.5250 t·hm-2;林下土壤分级指标结果:有机质、全磷均呈现4~5级标准,全氮为1~3级标准;林下土壤养分含量分析比较结果:有机质含量为山杨> 辽东栎> 油松,而全氮和全磷为山杨> 油松> 辽东栎;同时分析了土壤全量养分与各林分下活地被生物量、凋落物层生物量之间的相关性,结果表明:3种人工林的3种全量养分与活地被生物量、凋落物生物量均呈现极显著相关(P<0.01),同时3种林分的土壤全量养分间相关性显著(P<0.05),表现出良好的协同效应。

关键词: 林下植被, 生物量, 分级, 土壤养分, 相关性

Abstract: Usingsample-plot surveyand soil sample analysis, wedetermined thegeneral situation ofwoody biomass(WB), litter biomass(LB) and soil nutrients(SN) including organic matter(OM), total nitrogen(TN), total phosphorus(TP) for three plants(Pinus tabuliformis, Populus davidiana, Quercus liaotungensis), and analyzed the relationship between biomass(WB, LB) and SN as well. The largest WB was that of P.tabuliformis(2.3547 t·hm-2), followed by P.davidiana(2.0785 t·hm-2) and Q.liaotungensis(1.1373 t·hm-2). The largest LB was that of P.davidiana(4.7975 t·hm-2), followed by Q.liaotungensis(2.1399 t·hm-2) and P.tabuliformis(0.5250 t·hm-2). The forest soil classification indicators were OM and TP with the standard level of 4-5 and 1-3, respectively. For the analysis and comparison result of forest SN, the largest content of OM was that of P.davidiana, followed by Q.liaotungensis and P.tabuliformis, while largest contents of TN and TP were P.davidiana, followed by P.tabuliformis and Q.liaotungensis. We also analyzed the correlation between SN and WB and LB, resulting in that the correlation of all three plants with a highly significant relation(P<0.01), and the correlation among OM, TN and TP of all three plants also was significant with a good synergistic effect(P<0.05).

Key words: forest vegetation, biomass, grade, soil nutrients, correlation

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