32°N断面二十年来生态环境的演化及变化趋势
Distribution and variation trends of the environmental factors in the 32°N section
-
摘要: 通过分析20a来(1975—1998年)32°N断面春、秋两个季节的生态环境参数,选取特定年份对该断面各环境要素断面分布特征做了探讨,并结合各环境参数的距平图及多年气候趋势系数,初步讨论了各环境参数春季和秋季多年来的变化趋势及营养盐结构变化状况:20a来各环境参数发生了显著变化,春季、秋季无机氮有上升趋势,溶解氧、磷酸盐和硅酸盐呈下降的趋势;氮可能成为春季东海北部海域浮游植物生长的限制因子。Abstract: Based on the survey data from 1975 to 1998 in the 32°N section,the distributions of temperature,salinity,dissolved oxygen and nutrients as well as their variation trends were analyzed during these 20 a.The climatet rend coefficients and the anomaly pictures of the factors revealed positive trends of nitrate.But dissolved oxygen,phosphate and silicate decreased in spring.The nutrient structure in spring was also discussed.The content of nitrogen was generally low and it was possible to be a limiting-factor for phytoplankton growth in the study area.
-
Key words:
- environmental factors /
- long-term variation /
- 32° /
- N section
-
崔毅,宋云利.渤海海域营养盐状况[J].海洋水产研究,1996,17(1):57-62. 于志刚,米铁柱,谢宝东,等.二十年来渤海生态环境参数的演化和相互关系[J].海洋环境科学,2000,19(1):15-19. 俎婷婷,鲍献文,谢俊,等.渤海中部断面环境要素分布及其变化趋势[J].中国海洋大学学报,2005,35(6):889-894. LIU C,NING X,SU J,et al.Environment changes and the responses of the ecosystens of the yellow Sea during 1976-2000[J].Journal of Marine Systems,2005,55:223-234. SCHLITZER R.Ocean data view[R],http://odv,awi.de,(2005-05-17)[2008-06-30]. 沈国英,施并章.海洋生态学[M].北京:科学出版社,2002:88-89. 李道季,张经,黄大吉,等.长江口外氧的亏损[J].中国科学(D辑),2002,32(8):686-693. 邹景忠,董丽萍,秦保平,等.渤海湾富营养化和赤潮问题的初步探讨[J].海洋通报,2002,21(2):22-29. REDFIELD A C,KETCHUMN B H,RICHARDS F A.The influence of organisms on the composition of seawater[M]//HILL M N.The Sea.New York,Wiley,1963,26-27. OLAUSSON E.Chemistry and Biogeochemistry of estuaries[M].New York:JW＆S,1980:147. 张均顺,沈志良.胶州湾营养结构变化的研究[J].海洋与湖沼.1997,28(5):529-535. ZHOU Ming-jiang,SHEN Zhi-liang,YU Ren-cheng,et al.Responses of a coastal phytoplankton community to increased nutrient input from the Changjiang(Yangtze) River[J].Continental Shelf Research.2008,28:1483-1489. -
计量
- 文章访问数: 884
- HTML全文浏览量: 21
- PDF下载量: 1033
- 被引次数: 0
下载:
