Primary Production, an Index of Climate Change in the Ocean: Satellite-Based Estimates over Two Decades

被引:86
|
作者
Kulk, Gemma [1 ]
Platt, Trevor [1 ]
Dingle, James [1 ]
Jackson, Thomas [1 ]
Joensson, Bror F. [1 ]
Bouman, Heather A. [2 ]
Babin, Marcel [3 ]
Brewin, Robert J. W. [4 ]
Doblin, Martina [5 ]
Estrada, Marta [6 ]
Figueiras, Francisco G. [7 ]
Furuya, Ken [8 ]
Gonzalez-Benitez, Natalia [9 ]
Gudfinnsson, Hafsteinn G. [10 ]
Gudmundsson, Kristinn [10 ]
Huang, Bangqin [11 ]
Isada, Tomonori [12 ]
Kovac, Zarko [13 ]
Lutz, Vivian A. [14 ]
Maranon, Emilio [15 ]
Raman, Mini [16 ]
Richardson, Katherine [17 ]
Rozema, Patrick D. [18 ]
van de Poll, Willem H. [18 ]
Segura, Valeria [14 ]
Tilstone, Gavin H. [1 ]
Uitz, Julia [19 ,20 ]
van Dongen-Vogels, Virginie [21 ]
Yoshikawa, Takashi [8 ]
Sathyendranath, Shubha [22 ]
机构
[1] Plymouth Marine Lab, Earth Observat Sci & Applicat, Prospect Pl, Plymouth PL1 3DH, Devon, England
[2] Univ Oxford, Dept Earth Sci, Oxford OX1 3AN, England
[3] Lab Oceanog Villifranche, Marine Opt & Remote Sensing Lab, BP 8, F-06238 Villefranche Sur Mer, France
[4] Univ Exeter, Coll Life & Environm Sci, Peter Lanyon Bldg,Treliever Rd, Penryn TR10 9FE, Cornwall, England
[5] Univ Technol Sydney, Plant Funct Biol & Climate Change Cluster, Fac Sci, POB 123 Broadway, Sydney, NSW 2007, Australia
[6] CSIC, Inst Ciencies Mar, Pg Maritim Barceloneta 37-49, Barcelona 08003, Spain
[7] CSIC, Inst Invest Marinas, Eduardo Cabello 6, Vigo 36208, Spain
[8] Univ Tokyo, Grad Sch Agr & Life Sci, Tokyo 1138657, Japan
[9] Univ Rey Juan Carlos, Area Biodivers & Conservat, E-28933 Madrid, Spain
[10] Marine & Freshwater Res Inst, Skillagata 4, IS-101 Reykjavik, Iceland
[11] Xiamen Univ, State Key Lab Marine Environm Sci, Fujian Prov Key Lab Coastal Ecol & Environm Studi, Xiamen 361005, Peoples R China
[12] Hokkaido Univ, Akkeshi Marine Stn, Field Sci Ctr Northern Biosphere, Aikkapu 1, Akkeshi, Hokkaido 0881113, Japan
[13] Univ Split, Fac Sci, Rudera Bogkovka 33, Split 21000, Croatia
[14] Inst Nacl Invest & Desarrollo Pesquero, Paseo Victoria Ocampo 1,B7602HSA, Mar Del Plata, Argentina
[15] Univ Vigo, Dept Ecol & Biol Anim, Campus As Lagoas Marcosende, Vigo 36310, Pontevedra, Spain
[16] ISRO, Space Applicat Ctr, Ambawadi Vistar PO, Ahmadabad 380015, Gujarat, India
[17] Univ Copenhagen, Globe Inst, Ctr Macroecol Evolut & Climate, Univ Pk 15, DK-2100 Copenhagen, Denmark
[18] Univ Groningen, Energy & Sustainabil Res Inst Groningen, Dept Ocean Ecosyst, Nijenborgh 7, NL-9747 AG Groningen, Netherlands
[19] CNRS, 181 Chem Lazaret, F-06230 Villefranche Sur Mer, France
[20] Sorbonne Univ, Lab Oceanog Villefranche, 181 Chem Lazaret, F-06230 Villefranche Sur Mer, France
[21] Australian Inst Marine Sci, Oceanog & Shelf Proc Res, PMB3, Townsville, Qld 4810, Australia
[22] Plymouth Marine Lab, Natl Ctr Earth Observat, Prospect Pl, Plymouth PL1 3DH, Devon, England
基金
英国自然环境研究理事会;
关键词
primary production; phytoplankton; photosynthesis; ocean-colour remote-sensing; climate change; MARINE PRIMARY PRODUCTION; SUB-ARCTIC PACIFIC; PHOTOSYNTHETIC PARAMETERS; PHYTOPLANKTON PHOTOSYNTHESIS; SPRING PHYTOPLANKTON; NATURAL ASSEMBLAGES; SPECIES COMPOSITION; MANUKAU HARBOR; LIGHT; GROWTH;
D O I
10.3390/rs12050826
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Primary production by marine phytoplankton is one of the largest fluxes of carbon on our planet. In the past few decades, considerable progress has been made in estimating global primary production at high spatial and temporal scales by combining in situ measurements of primary production with remote-sensing observations of phytoplankton biomass. One of the major challenges in this approach lies in the assignment of the appropriate model parameters that define the photosynthetic response of phytoplankton to the light field. In the present study, a global database of in situ measurements of photosynthesis versus irradiance (P-I) parameters and a 20-year record of climate quality satellite observations were used to assess global primary production and its variability with seasons and locations as well as between years. In addition, the sensitivity of the computed primary production to potential changes in the photosynthetic response of phytoplankton cells under changing environmental conditions was investigated. Global annual primary production varied from 38.8 to 42.1 Gt C yr<mml:semantics>-1</mml:semantics> over the period of 1998-2018. Inter-annual changes in global primary production did not follow a linear trend, and regional differences in the magnitude and direction of change in primary production were observed. Trends in primary production followed directly from changes in chlorophyll-a and were related to changes in the physico-chemical conditions of the water column due to inter-annual and multidecadal climate oscillations. Moreover, the sensitivity analysis in which P-I parameters were adjusted by +/- 1 standard deviation showed the importance of accurately assigning photosynthetic parameters in global and regional calculations of primary production. The assimilation number of the P-I curve showed strong relationships with environmental variables such as temperature and had a practically one-to-one relationship with the magnitude of change in primary production. In the future, such empirical relationships could potentially be used for a more dynamic assignment of photosynthetic rates in the estimation of global primary production. Relationships between the initial slope of the P-I curve and environmental variables were more elusive.
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页数:27
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