摘要
在水库富营养化研究中,一般常采用营养状态指数对水库营养状态进行分级,然后采用变化趋势与倾向率法判断富营养化趋势。该方法能够直观反映整个分析时段内营养状态指数的升降趋势,但无法反映不同时段内营养状态指数的升降趋势。Mann-kendall趋势检验法和突变分析法则弥补了该缺点。
In the eutrophication study of reservoirs,the eutrophication index is often adopted to classify the eutrophi-cation of the reservoir,and then the change trend and inclination rate method are used to judge the eutrophicationtrend.The method can intuitively reflect the ascend and descend trend of the eutrophication index in the whole analy-sis period,but it can't reflect that of which in different periods.Mann-kendall trend test and Mann-kendall mutationanalysis methods can make up for this shortcoming.
引文
[1]金根东.我国湖泊富营养化现状研究[J].现代农业科技,2008,16:334-336.
[2]SL395-2007.地表水资源质量评价技术规范[S].
[3]毛元宝.新西河水库水质分析评价检测报告[R].汕头,2012,[4]刘聚涛,方少文,冯倩,等.基于Man-Kendall法的湖泊稳态转换突变分析[J].中国环境科学,2015,35(12):3707-3713.
[5]张盛霖,邓高燕,黄勇奇.Mann-Kendall检验法在Excel中的实现与应用[EB/OL].北京:中国科技论文在线[2014-06-27].http://www.paper.edu.cn/releasepaper/content/201406-448.
[6]汪攀,刘毅敏,sen’s.斜率估计与Mann-Kendall在设备运行趋势分析中的应用[J].武汉科技大学学报,2014,12:454-457.
[7]李建鸿,蒙歆媛,翟禄新,等.1951-2006年广西极端连续降水的时空变化分析[J].广西师范大学学报(自然科学版),2016,34(1):187-196.