| 底栖鱼类对水田上覆水中磷素动态的扰动效应 |
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| 引用本文： | 孙刚,房岩,汪爱武,严永菊.底栖鱼类对水田上覆水中磷素动态的扰动效应[J].农业科学与技术,2010(5). |
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| 作者姓名： | 孙刚 房岩 汪爱武 严永菊 |
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| 作者单位： | 孙刚,房岩,严永菊(长春师范学院生命科学学院,吉林长春,130032);汪爱武(长春教育学院化学系,吉林长春,130061) |
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| 基金项目： | 人力资源和社会保障部留学人员科技活动择优资助项目，吉林省人才开发资金项目，吉林省科技发展计划项目，吉林省教育厅科技计划项目，教育部留学回国人员科研启动基金项目，长春师范学院自然科学基金，东北师范大学自然科学青年基金项目(20050406).Supported by Human Resources and Social Security Department Students Abroad Science and Technology Activities Preferred Foundation，Talent Development Fund Project in Jilin Province，Jilin Provinca Science and Technology Development Project，Technology Project Jilin Provincial Ministry of Education，The Project Sponsored by the Scientific Research Foundation for the Returned Overseas Chinese Scholars;State Education Ministry，Science Foundation of Changchun Teachers University，Northeast Normal University Natural Science Foundation for Young Scholar |
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| 摘 要： | 目的]研究底栖鱼类泥鳅对水田上覆水中磷素动态的扰动效应,探讨生物扰动机制.方法]基于模拟试验,使用离子色谱法和分光光度法,对比分析上覆水中磷素含量在有/无泥鳅活动时的差异.结果]扰动组的TP、DTP和PP浓度在试验开始阶段与对照组无显著差异,在试验中、后期显著高于对照(P<0.05).扰动组要的PP/TP高于对照组,扰动组中TP浓度的增加主要是由于PP的增加,扰动组的DIP/DT在试验中、后期显著高于对照(P<0.05).结论]底栖鱼类对水田上覆水中的磷素产生了扰动作用,增加了水稻生长可利用的的磷素养分.
Abstract：
Objective] The research aimed to investigate the bioturbation effects of benthic fish Misgurnus anguillicaudatus on phosphorus dynamic in overlying water of paddy field,as well as to explore the bioturbation mechanism.Method]Based on simulation experiment,the phosphorus contents in overlying water were analyzed comparatively with and without Misgurnus anguillicaudatus by the using of ion chromatography and spectrophotometry. Result] The concentrations of total phosphorus (TP),dissolved total phosphorus(DTP)and particular phosphorus(PP) in bioturbation group had no significant differences with those in control group in initial stage of experiment,and became significantly higher than control group in middle and late stages of experiment(P<0.05).The PP/TP ratios in bioturbation group were bigger than those in control group,the increase of TP concentration in bioturbation group was mainly due to the increase of PP.The ratios of dissolved inorganic phosphorus(DIP) to DTP (DIP/DTP) were significantly bigger than those in control group in middle and late stages of experiment (P<0.05). Conclusion] The benthic fish had bioturbation effects on phosphorus in overlying water of paddy field,which increased the available phosphorus for rice growth.
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| 关 键 词： | 底栖鱼类 水田 上覆水 磷素 动态 扰动效应 Paddy Field Overlying Water Dynamic Misgurnus anguillicaudatus overlying water simulation experiment total phosphorus control paddy field inorganic phosphorus available phosphorus ion chromatography 试验 initial stage |
Bioturbation Effects of Benthic Fish on the Phosphorus Dynamic in Overlying Water of Paddy Field |
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| Abstract: | Benthic fish Paddy field Bioturbation Phosphorus Overlying water |
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| Keywords: | Benthic fish Paddy field Bioturbation Phosphorus Overlying water |
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