Primary production of the biosphere: Integrating terrestrial and oceanic components
Primary production of the biosphere: Integrating terrestrial and oceanic components
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DOI：
10.1126/science.281.5374.237
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发表时间：
1998-07-10
期刊：
影响因子：
56.9
通讯作者：
Falkowski, P
中科院分区：
文献类型：
--
作者：
Field, CB;Behrenfeld, MJ;Falkowski, P
综合概念上相似的海洋和陆地初级生产者增长模型，估计全球净初级生产力（NPP）为每年104.9千兆克的碳，陆地和海洋的贡献大致相等。基于卫星吸收太阳辐射指数的方法表明，陆地和海洋的NPP具有显著的异质性，反映了物理和生态过程的影响。海洋净初级生产力的时空分布与初级模拟结果一致。在陆地上，水的限制带来了额外的限制。在陆地和海洋上，NPP的逐步变化可以导致碳储量的改变，尽管碳储量机制和有机质周转率的差异导致碳储量和NPP变化之间的一系列关系。
Integrating conceptually similar models of the growth of marine and terrestrial primary producers yielded an estimated global net primary production (NPP) of 104.9 petagrams of carbon per year, with roughly equal contributions from Land and oceans. Approaches based on satellite indices of absorbed solar radiation indicate marked heterogeneity in NPP for both Land and oceans, reflecting the influence of physical and ecological processes. The spatial and temporal distributions of ocean NPP are consistent with primary I.imitation by Light, nutrients, and temperature. On Land, water limitation imposes additional constraints. On Land and ocean, progressive changes in NPP can result in altered carbon storage, although contrasts in mechanisms of carbon storage and rates of organic matter turnover result in a range of relations between carbon storage and changes in NPP.