| 白洋淀菹草生长参数的线性分析 |
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| 引用本文： | 任俊龙,刘存歧,田志富,苏倩,王靖飞.白洋淀菹草生长参数的线性分析[J].河北大学学报(自然科学版),2012,32(2):187-192. |
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| 作者姓名： | 任俊龙 刘存歧 田志富 苏倩 王靖飞 |
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| 作者单位： | 1. 河北大学生命科学学院,河北保定,071002
2. 河北省环境科学研究院水环境科学研究所,河北石家庄,050051 |
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| 基金项目： | 水体污染控制与治理科技重大专项基金资助项目，河北省科学技术研究与发展指导计划项目 |
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| 摘 要： | 2011年3月初至5月对白洋淀菹草(Potamogeton crispus)的生长参数进行了连续观测,以探索白洋淀菹草的生长规律.结果表明,白洋淀菹草的生长过程遵循Logistic增长模式,方程为Y=121.419/(1+42.814e-0.843 t)(R2=0.896,n=7).其最大日增生物量为25.59g/(m2.d),环境容纳量为121.419g/m2.白洋淀菹草各构件间呈极显著的线性关系.研究发现4月到5月初是白洋淀菹草的迅速增长期,此后则进入凋亡和腐败期,建议在石芽成熟期(5月初)对菹草进行收获,以避免氮磷营养盐的再释放对白洋淀水质的影响.
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| 关 键 词： | 菹草 生长参数 线性分析 白洋淀 生长模型 |
Linear analysis on growth parameters of Potamogeton crispus in Baiyangdian Lake |
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| REN Jun-long
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LIU Cun-qi
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TIAN Zhi-fu
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SU Qian
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WANG Jing-fei.Linear analysis on growth parameters of Potamogeton crispus in Baiyangdian Lake[J].Journal of Hebei University (Natural Science Edition),2012,32(2):187-192. |
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| Authors: | REN Jun-long LIU Cun-qi TIAN Zhi-fu SU Qian WANG Jing-fei |
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| Institution: | 1.College of Life Sciences,Hebei University,Baoding 071002,China;2.Institute of Aquatic Environment,Hebei Provincial Academy of Environmental Sciences,Shijiazhuang 050051,China) |
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| Abstract: | Gowth parameters of Potamogeton crispus in Baiyangdian Lake were measured continuously from March to May in order to understand its growth process.The results showed that the growth of P.crispus was fitted to logistic equation Y= 121.419/(1+42.814 e-0.843 t)(R2=0.896,n=7),which maximum increase rate of biomass was 25.59 g/(m2·d),and carrying capacity was 121.419 g/m2.There existed significant linear relations among modules of P.crispus.P.crispus in Baiyangdian Lake grew abruptly from beginning of April to beginning of May,and then decayed.It was suggested that plant should be harvest to avoid the deterioration of water quality due to nitrogen and phosphorus nutrient release of detritus in its mature period. |
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| Keywords: | Potamogeton crispus growth parameter linear analysis Baiyangdian Lake growth model |
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