摘要
研究了南极菲尔德斯半岛长城站附近海域营养盐、叶绿素ａ和海水物理性质的空间分布间的关系，包括一般规律研究、空间相关研究以及营养盐、海水物理性质与叶绿素ａ的密度分布比较。结果表明叶绿素ａ的空间分布和营养盐的空间分布并不完全一致，聚集的营养盐分布对应于叶绿素ａ的非聚集分布，相反非聚集分布的营养盐则对应于叶绿素密度分布的聚集性。不同月份影响叶绿素ａ含量和初级生产力因素也不同，在所调查的因素中，１２月份没有发现某个或某些环境因素特别重要，１月份硝酸盐、氨盐和海水表面温度都影响叶绿素在海水中的含量，２月份主要表现为海水表面温度的影响，磷酸盐对叶绿素ａ含量的影响很小。
he relationship among organic salts,chlorophylla (chla) and physical properties of sea water was studied in this paper. The study contained three parts, the general analysis, the spatial autocorrelation analysis, and the comparison of density distribution. The results indicated that there is a difference between the spatial pattern of chla and that of organic salt, the heterogeneous distribution of organic salt vs. the random distribution of chla, the random distribution of organic salt vs. the aggregation distribution of chla. The environmental factors, which influence chla and primary production, are different at different month, no factor has special effect in December, the nitrate, ammonium, and surface temperature together influence the concentration of chla and primary production in Jan., the temperature is the main effective factor in February. Phosphate has little effect on the concentration of chla.
出处
《极地研究》
CAS
CSCD
1998年第2期144-151,共8页
Chinese Journal of Polar Research
关键词
营养盐
叶绿素A
空间相关分析
密度分布
南极
organic salt, chla, spatial autocorrelation analysis,density distribution.
