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引用本文:刘海平,钟国辉,叶少文,张良松,张惠娟,范丽卿,巴桑,李钟杰.西藏尼洋河水环境特征多元统计分析.湖泊科学,2015,27(6):1187-1196. DOI:10.18307/2015.0625
LIU Haiping,ZHONG Guohui,YE Shaowen,ZHANG Liangsong,ZHANG Huijuan,FAN Liqing,BA Sang,LI Zhongjie.Multivariate statistical analysis of water environment for Niyang River, the branch of the Yarlung Zangbo River, Tibet. J. Lake Sci.2015,27(6):1187-1196. DOI:10.18307/2015.0625
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西藏尼洋河水环境特征多元统计分析
刘海平1,2,3, 钟国辉1, 叶少文2, 张良松4, 张惠娟1, 范丽卿1, 巴桑1, 李钟杰2
1.西藏大学农牧学院, 林芝 860000;2.中国科学院水生生物研究所淡水生态与生物技术国家重点实验室, 武汉 430072;3.中国科学院大学, 北京 100049;4.福建省水产技术推广总站, 福州 350003
摘要:
自2008年11月到2009年10月按照月份监测西藏林芝地区尼洋河水环境特征.结果显示,根据Pearson相关性矩阵,可将尼洋河26项理化指标分为3大类,分别是低度相关性理化指标、中度相关性理化指标和高度相关性理化因子.析因分析显示,可将26项理化指标分为4大类,第1类为尼洋河水体常规的理化指标、第2类为尼洋河水体硬度相关指标、第3类为海拔及第4类为影响水生生物生长的水质理化指标.PCA分析发现,平水期、丰水期以及枯水期水环境特征明显不同,以上3期各自聚为一类,而尼洋河沿程方面,水环境特征则不存在差异.构建了尼洋河海拔、底层水温与相关理化因子的一元回归方程.建议加强对尼洋河水环境的监测工作,积极推进尼洋河水域生态环境的可持续发展进程.
关键词:  西藏  尼洋河  水质理化  时空动态  主成分分析  析因分析  Pearson相关性矩阵
DOI:10.18307/2015.0625
分类号:
基金项目:西藏科技厅地区基金重点项目、西藏财政厅农业技术推广项目、农业部公益性行业专项(201403012)和国家自然科学基金项目(31160140)联合资助.
Multivariate statistical analysis of water environment for Niyang River, the branch of the Yarlung Zangbo River, Tibet
LIU Haiping1,2,3, ZHONG Guohui1, YE Shaowen2, ZHANG Liangsong4, ZHANG Huijuan1, FAN Liqing1, BA Sang1, LI Zhongjie2
1.Agricultural and Animal Husbandry College of Tibet University, Linzhi 860000, P.R.China;2.State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, P.R.China;3.University of Chinese Academy of Sciences, Beijing 100049, P.R.China;4.Fujian Marine Products Technical Promotion Station, Fuzhou 350003, P.R.China
Abstract:
We have monitored and analyzed water environment for Niyang River, the branch of the Yarlung Zangbo River, Tibet, based on seasons from November 2008 to October 2009. The results are as follows: Firstly, based on Pearson correlation matrix, physico-chemical factors for Niyang River can be divided into three categories, which are low correlation physicochemical factors, mid correlation physico-chemical factors and high correlation physico-chemical factors. Secondly, based on factorial analysis, physicochemical factors for Niyang River can be divided into four categories, which are normal physico-chemical factors, hardness relevant physico-chemical factors, elevation, and physicochemical factors affecting growth of aquatic organism. Thirdly, based on PCA, the characteristics of level period, wet season and dry season are significantly different, there is no difference along Niyang River from upstream to downstream. Last but not least, we have structured regression equation between elevation and relevant physicochemical factors, regression equation between bottom water temperature and relevant physicochemical factors. The paper also suggests paying close attention to water environment monitoring, in order to warrantee the sustainable development of Niyang River aquatorium ecology.
Key words:  Tibet  Niyang River  physico-chemical characteristics  spatio-temporal dynamic  PCA  factorial analysis  Pearson correlation matrix
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