| 大叶藻的热值和元素含量(碳、氮、磷)及其相关性 * |
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| 引用本文： | 杨贵福,邢 坤,李 耕,刘海映,潘玉洲,张 力.大叶藻的热值和元素含量(碳、氮、磷)及其相关性 *[J].海洋与湖沼,2015,46(1). |
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| 作者姓名： | 杨贵福 邢 坤 李 耕 刘海映 潘玉洲 张 力 |
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| 作者单位： | 大连海洋大学海洋科技与环境学院 大连,大连海洋大学海洋科技与环境学院 大连,中国水产科学研究院营口增殖实验站 营口,大连海洋大学海洋科技与环境学院 大连,中国水产科学研究院营口增殖实验站 营口,中国水产科学研究院营口增殖实验站 营口 |
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| 基金项目： | 国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 摘 要： | 提要:选取辽宁獐子岛近岸海域大叶藻样品,对其根系、根状茎和不同生长阶段叶片的灰分含量、热值和元素含量(碳、氮、磷)及其相关性进行研究,结果表明：在不同生长阶段,叶片长度随着生长顺序先增大后减小；灰分含量随着叶片生长逐渐升高,且极显著小于根状茎和根系(P<0.01)；不同部位干质量热值差异极显著(P<0.01),以初生叶最高,为14894.36±40.25 Jg-1,后逐渐减小,在根系中最小,为8153.81±78.91 Jg-1；不同生长阶段叶片的去灰分热值差异不大,但大于根系和根状茎；碳氮磷含量均呈同一趋势：初生叶>幼叶>成熟叶1>成熟叶2>衰老叶>根状茎>根系；N/P比值为12.23,说明大叶藻存在N限制；N/P比值在根状茎中最大,根系中最小,这说明大叶藻存在能量的转移和存贮；大叶藻不同部位灰分含量与干质量热值、去灰分热值、碳含量、氮含量、磷含量之间呈极显著的负相关(P<0.01),干质量热值与碳含量、氮含量、磷含量之间呈极显著的正相关(P<0.01)；大叶藻不同部位的热值与碳氮磷元素含量之间均呈显著的线性关系(P<0.05)。
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| 关 键 词： | 大叶藻 Zostera marina L. 不同生长阶段叶片 灰分含量 热值 元素含量 相关性 |
| 收稿时间： | 3/7/2014 12:00:00 AM |
CALORIC VALUES, ELEMENT CONTENTS (CARBON, NITROGEN AND PHOSPHORUS) AND CORRELATIONS OF ZOSTERA MARINA L. |
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| yangguifu,xingkun,ligeng,liuhaiying,panyuzhou and zhangli.CALORIC VALUES, ELEMENT CONTENTS (CARBON, NITROGEN AND PHOSPHORUS) AND CORRELATIONS OF ZOSTERA MARINA L.[J].Oceanologia Et Limnologia Sinica,2015,46(1). |
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| Authors: | yangguifu xingkun ligeng liuhaiying panyuzhou and zhangli |
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| Institution: | College of Marine Science and Environment, Dalian Ocean University, Dalian,College of Marine Science and Environment, Dalian Ocean University, Dalian,Yingkou Enhancement and Experiment Station, Chinese Academy of Fishery Sciences, Yingkou,College of Marine Science and Environment, Dalian Ocean University, Dalian,Yingkou Enhancement and Experiment Station, Chinese Academy of Fishery Sciences, Yingkou,Yingkou Enhancement and Experiment Station, Chinese Academy of Fishery Sciences, Yingkou |
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| Abstract: | The root, rhizome and leaves (Zostera marina L.) were collected from the coast of Zhangzi island in Dalian of Liaoning Province. The leaves were divided into five parts on the basis of growth sequence and length of leaves, these are primary leaves, young leaves, mature leaves 1, mature leaves 2 and old leaves. Ash contents, caloric values, element contents (carbon, nitrogen and phosphorus) and correlations of the root, rhizome and leaves at the different growth stages of eelgrass (Zostera marina L.) were studied. With the growth of leaves, length of leaves first increased and then decreased. With the growth of leaves, ash contents gradually increased, and great significantly less than root and rhizome(P<0.01); GCV in different parts of the plant is great significant difference(P<0.01), GCV of primary leaves is the highest, that is 14894.36±40.25Jg-1. And with the growth of leaves, GCV of leaves gradually decreased. GCV of the root is the lowest and 8153.81±78.91 Jg-1; AFCV of leaves at the different growth stages had little difference, but more than the root and rhizome; carbon content, nitrogen content and phosphorus content showed the same trend: primary leaves>young leaves>mature leaves 1> mature leaves 2>old leaves>rhizome>root. N:P ratio is 12.23, this showed eelgrass(Zostera marina L.) existed N limitation. And N:P ratio is the highest in the rhizome and the lowest in the root. This showed eelgrass(Zostera marina L.) existed energy transfer and storage. Ash contents was great significant negative correlated with GCV, AFCV, carbon content, nitrogen content, phosphorus content(P<0.01). GCV was great significant positive correlated with carbon content, nitrogen content, phosphorus content (P<0.01). There are significant linear relationships between caloric values and element contents (carbon, nitrogen and phosphorus) (P<0.05). |
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| Keywords: | Zostera marina L leaves at the different growth stages ash contents caloric values elemental contents correlation |
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