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地表积水状况对芦苇形态结构及生物量的影响
引用本文:李冬林,张纪林,潘伟明,朱轶群.地表积水状况对芦苇形态结构及生物量的影响[J].江苏林业科技,2009,36(3):17-20.
作者姓名:李冬林  张纪林  潘伟明  朱轶群
作者单位:1. 江苏省林业科学研究院,江苏,南京,211153
2. 京杭运河两淮段整治建设办公室,江苏,淮安,223001
基金项目:江苏省自然科学基金,江苏省社会发展计划项目 
摘    要:地表积水对芦苇形态结构及生长的影响研究结果表明:(1)地表积水深度对芦苇个体茎粗度、节间长度、节数均有显著影响。随着地表积水深度的增加芦苇平均茎粗度变大,节问变长,节数减少。(2)在不同积水状况下,芦苇地下茎形态变化明显,3种积水类型平均茎粗度排序为常年干旱〉季节性积水〉长期积水。季节性积水苇田的芦苇地下茎的节间长度较长,节数最多;常年干旱次之,但节数少;长期积水苇田的芦苇地下茎细、节间短、节数多。(3)土壤积水类型,芦苇地下茎与须根的比例差异很大。常年干旱苇田芦苇地下茎占地下部分总生物量的91.84%;季节性积水苇田芦苇地下茎占总量的54.95%;长期积水苇田的芦苇地下茎占总量的45.13%。(4)地表积水状况对芦苇个体生长有很大影响。表现为常年干旱苇田的芦苇个体粗大,密度过稀。季节性积水苇田的芦苇生物量最高,但密度较低。而长期积水苇田的芦苇粗度小,但密度最大。

关 键 词:芦苇  土壤水分  形态结构  生物量

Effect of surface water accumulation on morphological structure and biomass of Phragmites australis
LI Dong-lin,ZHANG Ji-lin,PAN Wei-ming,ZHU Yi-qun.Effect of surface water accumulation on morphological structure and biomass of Phragmites australis[J].Journal of Jiangsu Forestry Science & Technology,2009,36(3):17-20.
Authors:LI Dong-lin  ZHANG Ji-lin  PAN Wei-ming  ZHU Yi-qun
Institution:1.Forestry Academy of Jiangsu;Nanjing 211153;China;2.Engineering Office of the Section Between Huainan and Huaibei of the Beijing Hangzhou Grand Canal;Huaian 223001;China
Abstract:Effects of surface water accumulating on Morphological Structure and Growth of Phragmites australis were studied.The results showed that,(1)Effects of the depth of surface water on rhizome width,internode length,and knot number of P.australis were significantly;(2)The average rhizome widths of Phragmites australis under three kinds of water accumulating status on soil surface ranked perennial drought>seasonal hydrocele>perennial hydrocele;(3)The water accumulating affected significantly the proportion of rh...
Keywords:Phragmites australis  Surface water accumulating  Morphological structure  Biomass  
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