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FracRoot模型在橡胶树根系研究上的应用初探 被引量：6

Application of the FracRoot Model in the Root Study of Rubber Tree Species
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摘要 以30年生的3个品种的橡胶树为参试材料建立根系模型。测量根系拓扑、分枝规律、连结长度、连结直径和根系分枝角度,将这些数据应用于FracRoot模型,对橡胶树根系分段数量、总长度和生物量进行预测。结果表明,根段的逐渐变细对参数α值有很大影响,FracRoot模型轻微的低估了RRIM600和PR107中根系的分段数量和总长度,高估了GT1分段数量和总长度;过高的估计了所有物种的单一根系总的生物量;过低预测根系的水平分布,而过高的估计了垂直分布。 30-year old rubber trees of three varieties were selected as the study material to establish the root model of rubber trees.The root topology,branching rules,link length and diameter and root orientation were measured,and then these data were analyzed with FracRoot model to predict the number of segments,total length and biomass.The results showed that root segments tapering had a strong impact on the value of parameter α in FracRoot model.The established FracRoot model slightly underestimated the segment number and total length in RRIM600 and PR107,whereas modestly overestimated these variables in GT1;The total biomass of single root was overestimated in all three studied varieties;the horizontal extension of root system tends to be underestimated,whereas the vertical extension was overestimated.
作者 田耀华 岳海 龙云锋 陈国云
机构地区 云南省热带作物科学研究所 云南省科学技术厅
出处 《热带作物学报》 CSCD 北大核心 2012年第1期33-36,共4页 Chinese Journal of Tropical Crops
基金 国家科技支撑计划项目(No.2011BAD30B01) 农业部热作农技推广与体系建设项目(No.11RZNJ-14) 云南省科技创新强省计划项目(No.2009AB001) 云南农垦总局重点科技计划项目(No.2008XT02)
关键词 橡胶树 FracRoot模型 根系 Rubber tree； FracRoot model； Root
分类号 S794.1 [农业科学—林木遗传育种]
  • 相关文献

参考文献22

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二级参考文献9

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共引文献17

同被引文献67

  • 1周再知,郑海水,尹光天,杨曾奖,陈康泰.橡胶树生物量估测的数学模型[J].林业科学研究,1995,8(6):624-629. 被引量：38
  • 2吴嘉涟.橡胶树茎粗生长的研究.海南农垦科技,2007,(2):7-15.
  • 3胡耀华,王钊,舒宜通,伍业纲.1982.橡胶树群体光合作用研究-Ⅱ.估算橡胶树群体光合量的一个数学模型[J].热带作物学报,3(1):41-48.
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引证文献6

二级引证文献14

热带作物学报
2012年 第1期

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