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| 中华绒螯蟹有机和常规养殖池塘底泥氮磷溶出特性研究 | |
| 引用本文： | 吴曦沛,宗良纲,孔和云,陈来金,陈双全,徐财福.中华绒螯蟹有机和常规养殖池塘底泥氮磷溶出特性研究[J].淡水渔业,2009,39(5). |
| 作者姓名： | 吴曦沛 宗良纲 孔和云 陈来金 陈双全 徐财福 |
| 作者单位： | 1. 南京农业大学资源环境学院,南京,210095 2. 高淳县环境保护局,江苏高淳,211300 3. 高淳县阳江镇狮树水产项目渔场,江苏高淳,211311 |
| 摘 要： | 采用室内模拟研究的方法,研究中华绒螯蟹(Eriocheir sinensis)有机和常规养殖底泥中氮、磷的溶出规律。结果显示:有机组氨态氮溶出总量明显高于常规组,覆水前期,底泥厚度是决定氨态氮溶出总量的主要因子,中后期底泥类型成为主要因素。相同厚度底泥中有机组硝态氮的污染负荷明显低于常规组。常规组较有机组更容易在短时间内溶出硝态氮和亚硝态氮。5 cm和10 cm底泥厚度下有机组溶出总磷量分别高于常规组60.5%和56.5%,但在前4 d有机组的溶出速率低于常规组,应提早换水以有效控制总磷浓度。 |
| 关 键 词： | 中华绒螯蟹(Eriocheir sinensis) 有机养殖 常规养殖 底泥 氮磷溶出 富营养化 |
A study on the dissolution characteristics of nitrogen and phosphorus from sediments in organic and conventional crab pond farming system |
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| WU Xi-pei,ZONG Liang-gang,KONG He-yun,CHEN Lai-jin,CHEN Shuang-quan,XU Cai-fu.A study on the dissolution characteristics of nitrogen and phosphorus from sediments in organic and conventional crab pond farming system[J].Freshwater Fisheries,2009,39(5). | |
| Authors: | WU Xi-pei ZONG Liang-gang KONG He-yun CHEN Lai-jin CHEN Shuang-quan XU Cai-fu |
| Institution: | WU Xi-pei1,ZONG Liang-gang1,KONG He-yun2,CHEN Lai-jin2,CHEN Shuang-quan2,XU Cai-fu3(1.College of Resource and Environmental Science,Nanjing Agricultural University,Nanjing 210095,2.Environmental Protection Bureau of Gaochun County,Gaochun,Jiangsu 211300,3.Shishu Aquatic Product Project Fishery in Yangjiang Town of Gaochun County,Jiangsu 211311) |
| Abstract: | A laboratory simulation was used to compare the dissolution characteristics of nitrogen and phosphorus from sediments in organic and conventional crab(Eriocheir sinensis)farming system.The results showed that the total dissolution quantity of NH4+-N from the sediment of organic crab farming system was distinctively larger than the conventional one.In the early part of the experiment,the organic group with sediment thickness of 10 cm demostrated larger NH4+-N dissolution potential than the conventional group... |
| Keywords: | Eriocheir sinensis organic farming conventional farming sediment dissolution of nitrogen and phosphorus eutrophication |
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