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淹水调控对互花米草生长的影响

陈正勇 王国祥 刘金娥 徐伟伟 任丽娟

陈正勇, 王国祥, 刘金娥, 徐伟伟, 任丽娟. 淹水调控对互花米草生长的影响[J]. 环境科学研究, 2011, 24(9): 1003-1007.
引用本文: 陈正勇, 王国祥, 刘金娥, 徐伟伟, 任丽娟. 淹水调控对互花米草生长的影响[J]. 环境科学研究, 2011, 24(9): 1003-1007.
CHEN Zheng-yong, WANG Guo-xiang, LIU Jin-e, XU Wei-wei, REN Li-juan. Effects of Waterlogging Regulation on Growth of Spartina Alterniflora[J]. Research of Environmental Sciences, 2011, 24(9): 1003-1007.
Citation: CHEN Zheng-yong, WANG Guo-xiang, LIU Jin-e, XU Wei-wei, REN Li-juan. Effects of Waterlogging Regulation on Growth of Spartina Alterniflora[J]. Research of Environmental Sciences, 2011, 24(9): 1003-1007.

淹水调控对互花米草生长的影响

基金项目: 国家自然科学基金项目(40973053);江苏省高校自然科学重大基础研究项目(08KJA180002)

Effects of Waterlogging Regulation on Growth of Spartina Alterniflora

  • 摘要: 为了研究不同淹水深度和淹水时间胁迫下互花米草的适应能力,设置不同淹水深度(0,10和20 cm)与不同淹水时间(2,4,6,12和24 h/d)处理,以7~10 cm互花米草为试验对象,4个月后统计其生长发育参数与分蘖数,并测定地上部分的生物量.结果表明:①在淹水0,10和20 cm 3组试验之间呈极显著差异(P<0.01),随淹水深度的增加,互花米草分蘖数和地上生物量显著减少;②不同淹水时间各组之间株高呈极显著差异(P<0.01),随淹水时间的增加,互花米草分蘖数和地上生物量相应减少,且一直淹水于20 cm的互花米草全部死亡;③不同淹水时间、淹水深度对互花米草的影响大小主要表现为植株高度系数>叶片相关系数>无性生殖系数.持续淹水是控制互花米草的行之有效的物理措施.

     

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出版历程
  • 收稿日期:  2010-10-08
  • 修回日期:  2011-03-23
  • 刊出日期:  2011-09-25

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