| 伊乐藻、苦草和菹草对硝氮与磷复合胁迫的响应 |
| |
| 引用本文： | 马帅,张亚捷,马慧颖,蒋昕彧,朱钰,王湾湾,李效宇,马剑敏.伊乐藻、苦草和菹草对硝氮与磷复合胁迫的响应[J].河南师范大学学报(自然科学版),2010,38(6). |
| |
| 作者姓名： | 马帅 张亚捷 马慧颖 蒋昕彧 朱钰 王湾湾 李效宇 马剑敏 |
| |
| 基金项目： | 国家水体污染控制与治理科技重大专项，河南师范大学国家级大学生创新性实验项目 |
| |
| 摘 要： | 利用微宇宙系统研究了在硝氮+磷急性胁迫下,3 d内伊乐藻、苦草和菹草的现存量、生产力、叶绿素含量的变化特点.结果表明:在硝氮+磷28.2 mg.L-1时,伊乐藻和苦草的现存量可保持正增长,高于该浓度,则负增长;菹草在最大的胁迫浓度下(硝氮+磷=225.6 mg.L-1),其现存量仍可保持正增长,3种植物对硝氮与磷复合胁迫的抗性大小次序是:菹草伊乐藻苦草,硝氮和磷对3种植物的胁迫没有协同效应.
|
| 关 键 词： | 伊乐藻 苦草 菹草 磷 硝氮 复合胁迫 |
Responses of Elodea nuttallii, Vallisneria natans and Potamogeton crispu to Acute stress of PO3-4-P+NO-3-N |
| |
| MA Shuai,ZHANG Ya-jie,MA Hui-ying,JIANG Xin-yu,ZHU Yu,WANG Wan-wan,LI Xiao-yu,MA Jian-min.Responses of Elodea nuttallii, Vallisneria natans and Potamogeton crispu to Acute stress of PO3-4-P+NO-3-N[J].Journal of Henan Normal University(Natural Science),2010,38(6). |
| |
| Authors: | MA Shuai ZHANG Ya-jie MA Hui-ying JIANG Xin-yu ZHU Yu WANG Wan-wan LI Xiao-yu MA Jian-min |
| |
| Abstract: | The changes of the standing crops,productivities,chlorophyll content of Elodea nuttallii,Vallisneria natans and Potamogeton crispu under the acute stress of NO-3——N+PO3-4-P] are studied by using microcosm systems within 3 days.The results show that when the concentration of NO-3-N]+PO3-4-P] is among 0-28.2 mg·L-1,standing crops of the E.nuttallii and V.natans increase markedly,and then decrease when the concentration of NO-3-N]+PO3-4-P] exceed 28.2 mg·L-1.While the standing crops of P.crispu always increase when the concentration of NO-3-N]+PO3-4-P] is among 0-225.6 mg·L-1.The ability is to fight back the stress of NO-3-N+PO3-4-P was P.crispu > E.nuttallii V.natans.There is no synergistic effect between NO-3-N and PO3-4-P on the three species plants. |
| |
| Keywords: | Elodea nuttallii Vallisneria natans Potamogeton crispu PO3-4-P NO-3-N complex stress |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
