| 摘要: |
| 采用灰色系统关联度分析方法, 以空间理论数学为基础, 依规范性、偶对称性、整体性和接近性原则, 计算并分析了华容东湖围栏12 个生态因子的关联度, 关联序结果为: 总磷 > 总氮 > 氮磷比 > 氨氮 > 浮游植物 > 硝酸氮 > 酸碱度 > 浮游动物 > 水温 > 透明度 > 溶解氧 > 水深。结果表明, 总磷、总氮(包括氨氮和硝酸氮)和氮磷比是湖泊水体的优势影响因子。通过灰关联分析发现, 围栏内水体水质良好, 水体的氮磷比及溶解氧都适于浮游生物的生长繁殖, 对围栏养殖鳙鱼苗种天然饵料的培育、增加渔产潜力都有重要作用。 |
| 关键词: 华容东湖 围栏 生态因子 灰关联分析 |
| DOI：10.11693/hyhz20140400093 |
| 分类号: |
| 基金项目:湖南省湖南文理学院——大湖股份水产院士工作站项目,2013年;国家淡水渔业工程技术湖南中心项目,2013年;环洞庭湖水产健康养殖及加工湖南省重点实验室项目,2013—2014年;湖南省高校水生生物保育与利用创新团队支持计划,2011—2014年;湖南省高校水生生物产学研示范基地项目及湖南省动物学重点建设学科项目资助,2011—2014年。 |
附件 |
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| GRAY CORRELATION ANALYSIS ON NET ENCLOSURE ECOLOGICAL FACTORS IN DONGHU LAKE IN HUARONG COUNTY, HUNAN PROVINCE |
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YANG Pin-Hong1, XU Li-Ming2, QIN Zhong-Yuan3, ZHANG Qian4, PAN Ying5, WANG Xiao-Yan2, LI Meng-Jun2, XIE Chun-Hua2
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1.Department of Life Science, Hunan University of Arts and Science, Changde 415000, China;2.Hunan Aquatic Engineering Technology Research Center, Changde 415000, China;3.Qiandian Engineering Division of Dahu Co., Ltd., Changde 415000, China;4.Dahu Aquaculture Co., Ltd., Changde 415000, China;5.Nanjing Fishery Science Research Institute, Nanjing 210036, China
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| Abstract: |
| Based on space mathematical theory, according to the principles of normalization, symplectic symmetry, integrality, and accessibility, we calculated the gray system correlation degree for 12 ecological factors of net enclosure in Donghu Lake in Huarong County, Hunan Province, China. The correlation order of importance is as follow: total phosphorus > total nitrogen > phosphorus-nitrogen ratio > ammonia nitrogen > phytoplankton > nitrate nitrogen > pH value > zooplankton > water temperature > transparency > dissolved oxygen > water depth, showing that total phosphorus, total nitrogen (including ammonia nitrogen and nitrate nitrogen), and phosphorus-nitrogen ratio were dominant factors in the lake during study. Analysis showed that the water quality in the pen was good, phosphorus-nitrogen ratio, and dissolved oxygen were suitable for plankton growth and proliferation, which is important to the natural-food cultivation for bighead fry and for the potential of increasing fishery production in the lake. |
| Key words: Donghu Lake in Huarong County net enclosure ecological factors gray correlation analysis |
