山东荣成天鹅湖矮大叶藻种群的生态特征

应用生态学报

山东荣成天鹅湖矮大叶藻种群的生态特征

张晓梅^1,2,周毅^1**,王峰^1,2,刘鹏^1,2,刘炳舰¹,刘旭佳³,杨红生¹

(¹中国科学院海洋研究所, 山东青岛 266071; ²中国科学院大学, 北京 100049; ^3广西海洋研究所海洋生物技术重点实验室, 广西北海 536000)

出版日期:2013-07-18 发布日期:2013-07-18

Ecological characteristics of Zostera japonica population in Swan Lake of Rongcheng, Shandong Province of China.

ZHANG Xiao-mei^1,2, ZHOU Yi¹, WANG Feng^1,2, LIU Peng^1,2, LIU Bing-jian¹, LIU Xu-jia³, YANG Hong-sheng¹

(¹Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, Shandong, China; ²University of Chinese Academy of Sciences, Beijing 100049, China; ³Key Laboratory of Marine Biological Technology, Guangxi Institute of Oceanology, Beihai 536000, Guangxi, China).

Online:2013-07-18 Published:2013-07-18

摘要/Abstract

摘要：

在山东荣成天鹅湖发现较大面积的矮大叶藻,因天鹅湖独特的地理位置和矮大叶藻的高生物量,可以作为山东沿海矮大叶藻的典型代表.2011年9月至2012年10月,对天鹅湖东岸矮大叶藻及其生境进行了周年调查,初步掌握了该种的分布情况及其生境的生态特征.结果表明: 矮大叶藻床沉积物成分以砂(81%)和粉砂(14%)为主,沉积物C、N含量在冬季最高,C/N秋季最高;矮大叶藻的密度、高度和地上生物量与水温显著相关(P<0.05),生长呈现明显的季节变化,8—9月生物量最大.叶片的C、N含量及C/N因生长季节的不同而存在一定差异,C含量秋季显著高于春、夏季,N含量夏季显著低于春、秋季(P<0.01),C/N夏季显著高于春季(P<0.05).经估算,天鹅湖矮大叶藻的年固碳能力为111.4 g C·m^-2.

Abstract: In this study, a large area of well preserved Zostera japonica dominated meadow was found in a coastal lagoon, Swan Lake, in Rongcheng of Shandong Province. Due to its unique geographical position and high biomass, this meadow may act as a typical Z. japonica bed in the coastal area of Shandong. From September, 2011 to October, 2012, an annual investigation was conducted on the Z. japonica and its habitats in east coast of Swan Lake, and the distribution of the Z. japonica and its habitats ecological characteristics were preliminarily understood. The major ingredients of sediments particles in the Z. japonica bed was sand (81%) and silt (14%). The C and N contents in the sediments were the highest in winter, and the C/N ratio was the highest in autumn. The shoot density, shoot height, and biomass of the Z. japonica were all significantly correlated with water temperature (P<0.05). There was an obvious change in the Z. japonica growth among seasons, with the peak biomass obtained in August-September. The C and N contents and C/N in Z. japonica leaves also varied with seasons. The leaf C content was significantly higher in autumn than in spring and summer (P<0.05), the leaf N content was significantly lower in summer than in spring and autumn (P<0.01), whereas the leaf C/N ratio was significantly higher in summer than in spring (P<0.05). The annual carbon sequestration by the Z. japonica in the Swan Lake was estimated to be 111.4 g C·m^-2.

张晓梅1,2,周毅1**,王峰1,2,刘鹏1,2,刘炳舰1,刘旭佳3,杨红生1. 山东荣成天鹅湖矮大叶藻种群的生态特征[J]. 应用生态学报.

ZHANG Xiao-mei1,2, ZHOU Yi1, WANG Feng1,2, LIU Peng1,2, LIU Bing-jian1, LIU Xu-jia3, YANG Hong-sheng1. Ecological characteristics of Zostera japonica population in Swan Lake of Rongcheng, Shandong Province of China.[J]. Chinese Journal of Applied Ecology.