Microsoft Word 叶然_new_.doc

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1 46 2 Vol.46, No OCEANOLOGIA ET LIMNOLOGIA SINICA Mar., 2015 * 1 ( ) 2013 ( E N) 4, : (1) DIN( )P( ) Si( )DIN SiP, DINP,, SiDIN SiP, (2) N P, 126 E P, 126 E N ; (3) , 2013 P 10, N 123 E 126 E ; N E, ; ; ; ; P734 doi: hyhz ,,,,,,, (, 2012),, (N) (P),,, (, 2003),, (, 2012), (, 2008),, (Hecky et al, 1988), P, N (Ryther et al, 1971), (, 2004;, 2006;, 2012) (, 2008;, 2010;, 2013), (, 2003; Wang et al, 2003),, 2013, *, ;, MATHHAB ,,, yeran1753@126.com :,,, yxs8617@126.com : , :

2 312 46,,, 10, ( ) 5 ( ) 8 ( ) 11 ( ) ( E N) , ,, DIN PO 3 4 -P SiO 2 3 -Si 123 E,,,, DIN PO 3 4 -P ; 123 E 28 N, PO 3 4 -P SiO 2 3 -Si E N, (, 1983;, 2003),, ( PO 3 4 -P SiO 2 3 -Si) 表 1 东海四季表层营养盐含量 (μmoll) Tab.1 Contents of nutrients at surface water in 4 seasons over the East China Sea DIN PO 4 3 -P SiO 3 2 -Si Fig.1 Sampling sites in the East China Sea 1.2 CTD ( Seabird), CTD, (DIN) (NO 3 -N) (NO 2 -N) (NH + 4 -N), -, (PO 3 4 -P), (SiO 2 3 -Si) a 300mL, 0.45μm,, ( 20 C),, DINP SiDIN SiP, 4 a DINP, 123 E 31 N 1, 44.7, (, 2003), 1 DIN 33.50μmolL, PO 3 4 -P 0.34μmolL, a DINP,, (Liu et al, 2003), DINP

3 2 : 313

4 (μmoll) Fig.2 Horizontal distributions of nutrients in the surface water in four season of the study area (, 2006),,, (, 2004), PO 3 4 -P, PO 3 4 -P (Harrison et al, 1990) DINP 35, Redfield SiDIN 1,, 19.8, a 1.5μgL,, DIN, SiO 2 3 -Si SiDIN (, 2010) SiP ,, (2004), PO 3 4 -P, ( μmolL), SiP, DINP SiDIN SiP DINP, 43.6, DINP= E, 1 (124.5 E, 32 N), (, 2003), 32 1 (97.0) (93.0), a 32 (26.1μgL), DINP, 30 ( 10 ) (2002) 127 E, 33 N, 6 7 DIN 10.71μmolL, PO 3 4 -P 0.10μmolL DINP, DIN PO 3 4 -P (,

5 2 : ) E 27 N (, 1986),,, 15.5μgL a,, PO 3 4 -P μmolL; DIN, 2 DINP, SiP SiDIN DINP, N N SiDIN 1 5, 1(27 ), SiO 2 3 -Si N, SiDIN ; SiO 2 3 -Si μmolL, DIN ( 1.79μmolL), SiDIN , (2012) SiDIN 7 8, DINP ( 9.3), SiDIN ( 4.1), Redfield DINP, 124 E 30 N DIN ( μmolL), SiDIN 1, 125 E,, (, 2012), DINP 123, SiO 2 3 -Si,, E SiDIN (, 2002;, 2013) SiP, , DINP SiDIN DINP 30 (32.3) 26 (28.5) DIN μmolL, PO 3 4 -P μmolL, PO 3 4 -P SiO 2 3 -Si,, DINP (, 1996; Chen, 1996), SiDIN SiP SiDIN,, E N, SiO 2 3 -Si 表 2 东海四季 DINP SiDIN 及 SiP 比值 Tab.2 Ratio of DINP, SiDIN and SiP in surface water in four seasons of the East China Sea DINP SiDIN SiP , (, 1989; Justić et al, 1995), Fisher (1992) (Ks),, SiDIN 1, DINP 10, DIN 2.0μmolL, N ; SiP 22, DINP 22, P 0.20μmolL, P ; SiP 10, SiDIN 1, Si 2.0μmolL, Si ( 5), N P 9.8% 22%; Si P, 60% P ; N 19.5%;, Si, 7 P, N Si,,, N 126 E 50m DINP 10(, 1994),,

6 316 46

7 2 : DINP SiDIN SiP Fig.3 Horizontal distributions of DINP, SiDIN and SiP in surface water in four seasons of the study area 4 a (μgl) Fig.4 Horizontal distributions of chlorophyll-a in surface water in four seasons of the sea area

8 Fig.5 5 Seasonal variations of nutrient limitation in the East China Sea, DIN ( μmolL) ( μmolL), N (2.0μmolL), N P 200m,, 126 E, P, (, 2006),, P (, 2012) Si, N P, 126 P, 126 N ;, 2.4, 2013,, (, ) 2013 ( 3) 3, P, 123 E, 2004, P, P, P 10, P N 123 E 125 E, DINP N 2007,, E,

9 2 : 319 表 3 东海年夏季航次表层营养盐限制站位及范围 Tab.3 Patterns of nutrient limitation in the surface water in summer of in the East China Sea P (%) N (%) N N E E 126 E 19.5 N 3 (1) DINP SiDIN SiP, DINP,,, ; DINP, SiDIN DINP, ; SiP, (2) N P, 126 P, 126 N ;, (3) , 2013 P 10, N 123 E 125 E ; N E,, :, 1 21,,, , 30(10): ,,, , 35(3): ,,, (N, P, Si)., 14(4): ,, a., 31(3): ,,, , 35(4): , , 14(7): ,,, , 24(1): 53 58, a. D, 34(8): ,,, , 34(3): ,,, , 34(7): ,,, , 44(5): ,,, , 43(3): , :, , :, 15 32,,, 2013.

10 , 44(4): ,,, , 34(1): 35 43, , 18(5): 41 51,,, a., 14(7): ,,, , 14(7): ,,, , 13(1): 35 43,,, , 28(3): ,,, , 11(4): , :, ,,, , 22(4): 38 50, , 10(1): 51 56,,, , 36(9): Chen C T A, The Kuroshio intermediate water is the major source of nutrients on the East China Sea continental shelf. Oceanologica Acta, 19(5): Fisher T R, Peele E R, Ammerman J W et al, Nutrient limitation of phytoplankton in Chesapeake Bay. Marine Ecology Progress Series, 82(1): Harrison P J, Hu M H, Yang Y P et al, Phosphate limitation in estuarine and coastal waters of China. Journal of Experimental Marine Biology and Ecology, 140(1 2): Hecky R E, Kilham P, Nutrient limitation of phytoplankton in freshwater and marine environments: a review of recent evidence on the effects of enrichment. Limnology and Oceanography, 34(4): Justić D, Rabalais N N, Turner R E, Stoichiometric nutrient balance and origin of coastal eutrophication. Marine Pollution Bulletin, 30(1): Liu S M, Zhang J, Chen S Z et al, Inventory of nutrient compounds in the Yellow Sea. Continental Shelf Research, 23(11 13): Ryther J K, Dunstan W M, Nitrogen, phosphorus, and eutrophication in the coastal marine environment. Science, 171(3975): Wang B D, Wang X L, Zhan R, Nutrient conditions in the Yellow Sea and the East China Sea. Estuarine, Coastal and Shelf Science, 58(1): TEMPORAL AND SPATIAL DISTRIBUTIONS OF NUTRIENT STRUCTURE AND LIMITATION ON PHYTOPLANKTON IN THE EAST CHINA SEA YE Ran, LIU Yan-Yun, CUI Yong-Ping, WANG Ze-Shou, YE Xian-Sen (Marine Environmental Monitoring Centre of Ningbo, SOA, Ningbo , China) Abstract We studied the nutrient structure and their limitation upon phytoplankton in temporal and spatial distributions based on four seasonal cruises in 2013 over the East China Sea. Findings are followed. (1) The ratio of DIN:P, Si:DIN, Si:P were significantly affected by the growth cycle of phytoplankton in various water masses, of which the convergence of Changjiang (Yangtze River) Diluted Water and coastal current controlled the ratio of DIN:P in all seasons, featuring higher values in the offshore waters and lower in the open sea, while Si:DIN ratio was the opposite. The majority area of high Si:P ratio located in the offshore waters in spring and summer and extended from the central part eastward in autumn and winter. (2) The growth of phytoplankton was mainly limited by nitrogen and phosphate in the area and phosphate limitation in the central part and offshore waters mainly. In the area west of 126 E was in mainly phosphate limitation controlled by the Kuroshio, while in the area east of the line was in nitrogen limitation especially in the summer. (3) Phosphate limitation increased in summer in area from 2001 to 2010 and covered the majority area of the central part and offshore waters; the area of phosphate limitation expended from N and west of 123 E in Changjiang River estuary and northern Zhejiang coastal region a decade ago, to the area of 126 E in 2013 reaching the central part of the East China Sea. However, the area of nitrogen limitation was confined largely east of 126 E in the Kuroshio realm, but the area increased in recent decade. Key words East China Sea; nutrient structure; limitation; temporal and spatial distribution; past records

Microsoft Word 李亚力_news_.doc

Microsoft Word 李亚力_news_.doc 长江口营养盐结构特征及其对浮游植物的限制李亚力 1, 沈志良, 线薇微 1, 刘素美 (1., 66100;., 66071) 摘要 : 根据 01 年 5 月 11 月两个航次的调查资料, 分析了长江口营养盐浓度及其结构的分布变化, 并探讨了营养盐对浮游植物的限制情况长江口营养盐分布存在季节差异 : 口门外 NO -N NO -N 浓度均为春季高秋季低, PO -P SiO -Si NH -N