Biomass, production and rhizome growth near the northern limit of seagrass (Zostera marina) distribution
Biomass, production and rhizome growth near the northern limit of seagrass (Zostera marina) distribution
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DOI：
10.1016/s0304-3770(01)00225-x
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发表时间：
2002-03-01
期刊：
影响因子：
1.8
通讯作者：
Barrón, C
中科院分区：
文献类型：
--
作者：
Duarte, CM;Martínez, R;Barrón, C
在挪威霍帕瓦根泻湖（北纬 63 度 35'65"，东经 9 度 32'80"）对大叶藻滨林的生物量、枝条密度、群落生产和根茎生长进行了研究，该泻湖是研究海草生长和生产的最北地点。北欧Z滨斑块密集（>2700枝m(-2)），枝条相对较小（33-54 mg DW），因此地上生物量相对较低（约140 g DW m(-2)）。这些林分生产力中等，每天约 2 g O-2 m(-2)，与平均群落呼吸速率相似。收获的根茎片段的节间长度序列显示出明显的年周期，表明该群体是多年生的（根茎>2年生），每年每芽产生约25片叶子和30厘米的根茎。叶子的叶绿体时间间隔约为 15 天，接近于南纬 25 度的林地报道的时间间隔。 (C) 2002 Elsevier Science B.V. 保留所有权利。
The biomass, shoot density, community production, and rhizome growth of Zostera marina stands were studied in the Hopavagen lagoon, Norway (63degrees35'65"N, 9degrees32'80"E), the northern-most location where seagrass growth and production has been studied. The nordic Z marina patches were dense (>2700 shoot m(-2)), with relatively small shoots (33-54 mg DW), so that the aboveground biomass developed was relatively low (about 140 g DW m(-2)). The stands were moderately productive, at about 2 g O-2 m(-2) per day, similar to the average community respiration rate. The sequence of internodal lengths in the rhizome fragments harvested showed a clear annual cycle, indicating that the populations are perennial (rhizomes >2-year-old) producing about 25 leaves per shoot and 30 cm of rhizome annually. The leaf plastochrone interval, of about 15 days, was close to that reported for stands situated as much as 25degreesS. (C) 2002 Elsevier Science B.V. All rights reserved.