Based on the data of Enteromorpha prolifera coverage area,hydro-meteorological observation data,reanalysis data and various economic indicators from 2008 to 2022,the causes of the interannual variation of Enteromorpha prolifera green tide coverage area in the Yellow Sea are analyzed from natural processes and human activities.The results show that under normal circumstances,the Enteromorpha prolifera coverage area is larger in the next year of El Niño event(stronger and westerly Subtropical High leads to stonger and more precipitation;more days of effective accumulated temperature in the next year of El Niño event lead to stronger effective accumulated temperature),and the Enteromorpha prolifera coverage area is smaller in the next year of La Niña event.The days of strong winds and the duration of northerly winds in the northern Jiangsu coastal area in summer have important value on identifying extreme year of maximum Enteromorpha prolifera coverage area.Rainfall in the northern Jiangsu coastal area has a moderate positive correlation with the maximum Enteromorpha prolifera coverage area.The annual maximum Enteromorpha prolifera coverage area is highly positively correlated with the annual GDP increment of Lianyungang,Qingdao and Yancheng.In summary,the interannual variation of annual maximum Enteromorpha prolifera coverage area is jointly affected by El Niño-Southern Oscillation events,seasonal scale weather systems and interannual scale human economic production activities.
关键词
浒苔最大覆盖面积/厄尔尼诺-南方涛动/降水量/大风天数/偏北风/国内生产总值
Key words
maximum Enteromorpha prolifera coverage area/El Niño-Southern Oscillation/precipitation/gale days/northerly wind/GDP
维普
万方数据