南京林业大学学报(自然科学版) ›› 2015, Vol. 39 ›› Issue (01): 73-78.doi: 10.3969/j.issn.1000-2006.2015.01.014
朱强根1,金爱武1*,陈 操2,王意锟1,黄海泳3
出版日期:
2015-01-31
发布日期:
2015-01-31
基金资助:
ZHU Qianggen1, JIN Aiwu1*, CHEN Cao2, WANG Yikun1, HUANG Haiyong3
Online:
2015-01-31
Published:
2015-01-31
摘要: 克隆植物构型不仅受植物本身生物学的限制,对不同环境条件或干扰作用也会产生形态可塑性反应。笔者调查了不同营林模式下毛竹根茎克隆构型(分枝强度、分枝角度、根茎长度、节间长、根茎直径和节数等)的可塑性响应,同时对地下根茎和地上分株生物量的分配进行了分析。结果表明:在不同营林模式下,根茎的分枝强度与裂断数量均表现为笋用毛竹林>笋材两用林>材用林,根茎裂断显著增加了毛竹地下根茎分枝强度(P<0.05); 根茎分枝角度在不同营林模式下存在频率分布上的差异,毛竹通过改变分枝角度对土壤的异质状况产生可塑性适应。连续施肥12~14 a的笋用林和笋材两用林的根茎总长度较施肥1 a材用林的分别增长了11.09%和15.78%; 根茎节间长和直径的表现与不同营林模式下的养分状况、土壤异质性或根茎裂断情况不一致,而与地上分株胸径之间存在显著的异速生长关系。养分较贫瘠(施肥1 a)的材用毛竹林相对有更多的生物量分配到地下根茎,而连续施肥显著增加了笋用林和笋材两用林地上竹笋(新分株)生物量的比例。
中图分类号:
朱强根,金爱武,陈操,等. 毛竹克隆构型及其生物量对不同营林模式的响应[J]. 南京林业大学学报(自然科学版), 2015, 39(01): 73-78.
ZHU Qianggen, JIN Aiwu, CHEN Cao, WANG Yikun, HUANG Haiyong. The clonal architecture and biomass of Phyllostachys edulisas affected by different management modes[J].Journal of Nanjing Forestry University (Natural Science Edition), 2015, 39(01): 73-78.DOI: 10.3969/j.issn.1000-2006.2015.01.014.
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