摘要
试验选取了上海较为常见的4种绿化树种,落羽杉、乌桕、栾树、喜树,针对上海泥质海岸沿海防护林的建设需要,对其进行了模拟海水的耐盐、耐水淹交叉胁迫处理。结果表明,栾树和喜树的根系在水盐胁迫环境中受到的影响比乌桕和落羽杉大,从根系表面积、长度、体积、平均直径来看,栾树和喜树的敏感程度比较大,均出现早期上升,中后期下降的情况。落羽杉和乌桕根系对环境的表现则不是那么明显。
Four common greening tree species in Shanghai,which are Taxodium distichum,Sapium sebiferum,Koelreuteria paniculata,and Camptotheca acuminate were chosen to conduct an experiment on the seawater stress according to the requirement of the construction of coastal protection forests for muddy coast.The effects of seawater stress on root growth of Koelreuteria paniculata and Camptotheca acuminate were higher than Taxodium distichum and Sapium sebiferum.The sensitive degree of Koelreuteria paniculata and Camptotheca acuminate to seawater stress was higher than other two species according to data of the root surface area,length,volume,average diameter,all of which increased at the beginning and declined in the middle period.Root growth of both Taxodium distichu and Sapium sebiferum was not so sensitive to stress environment.
出处
《林业科技开发》
2011年第6期71-73,共3页
China Forestry Science and Technology
基金
上海市农业委员会科技攻关项目(编号:021010098)
关键词
海水
胁迫
树种
根系
seawater
stress
tree species
root
