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周世强, 吴志容, 严啸, 张钰, 蔡水花, 张和民. 冷箭竹无性系种群的取样技术探讨[J]. 四川林业科技, 2016, 37(1): 73-76,61. DOI: 10.16779/j.cnki.1003-5508.2016.01.017
引用本文: 周世强, 吴志容, 严啸, 张钰, 蔡水花, 张和民. 冷箭竹无性系种群的取样技术探讨[J]. 四川林业科技, 2016, 37(1): 73-76,61. DOI: 10.16779/j.cnki.1003-5508.2016.01.017
ZHOU Shi-qiang, WU Zhi-rong, YAN Xiao, ZHANG Yu, CAI Shui-hua, ZHANG He-min. Sampling Technique of Arrow Bamboo (Bashania faberi) Clone population[J]. Journal of Sichuan Forestry Science and Technology, 2016, 37(1): 73-76,61. DOI: 10.16779/j.cnki.1003-5508.2016.01.017
Citation: ZHOU Shi-qiang, WU Zhi-rong, YAN Xiao, ZHANG Yu, CAI Shui-hua, ZHANG He-min. Sampling Technique of Arrow Bamboo (Bashania faberi) Clone population[J]. Journal of Sichuan Forestry Science and Technology, 2016, 37(1): 73-76,61. DOI: 10.16779/j.cnki.1003-5508.2016.01.017

冷箭竹无性系种群的取样技术探讨

Sampling Technique of Arrow Bamboo (Bashania faberi) Clone population

  • 摘要: 采用"巢式取样法",对分布于四川卧龙国家级自然保护区"五一棚"大熊猫野外生态观察站的冷箭竹无性系种群进行了取样技术的研究,取样面积从0.01 m2扩大到25.00 m2,测定指标包括种群密度、调查时间、竹林以下各层植物盖度和1.00 m2样方内各龄级竹子的基径和高度。经对不同取样面积内3项指标的统计分析,结果表明:随着取样面积的增加,种群密度呈递降趋势,调查时间逐渐延长,各层植物盖度变化幅度较小;综合考虑认为,1.00 m2是冷箭竹无性系种群的最佳取样面积。同时,比较了"全样方"植株与随机抽取10株多年生竹的生长发育指数(基径和高度)的差异性,两种取样数量的方法之间无统计学意义(P>0.05)。从而,验证了过去线路监测过程中竹子取样面积和调查数量的科学性和有效性。

     

    Abstract: By adopting the nest sampling method,studies were made of sampling techniques for clonal population of Bashania faberi in Wuyipeng Ecological Observation Station of the Giant Pandas,Wolong National Nature Reserve.The determinnation indexes included population density,plant coverages of all layers below bamboo forests,bamboo stem diameter and length of each age-class within 1.00 m2 quadrat.In the meanwhile,sampling area increased from 0.01 m2 to 25.00 m2.Statistical analysis of 3 indexes in different sampling area showed that the population density had a tendency to decrease when sampling-area enlarged,and with the increase of the survey-time,the change range of the plant coverage of all layers reduced.After comprehensive consideration it was thought that 1.00 m2 was the best sampling area for the clonal population of Bashania faberi.Finally,the growth index(stem diameter and length) between "total quadrat" plants and 10 strains of random selected perennial bamboo was compared.The quantitative analysis results showed that there was no significant difference (P>0.05) between these two sampling techniques and thus verified the usefulness of bamboo population survey methods during the past route monitoring.

     

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