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Volume 34 Issue 1
Jan.  2015
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Citation:

Discussion of the change trend of the seagrass beds in the east coast of Hainan Island in nearly a decade

  • Received Date: 2013-12-13
    Accepted Date: 2014-01-24
  • Statistical analysis of the spices, average coverage, average density and average biomass of the seagrass beds in the east coast of Hainan island, And discussion of the change trend of them for fixed-point monitoring in a long term from 2004 to 2013. The results show that, the often detected seagrass species in the east coast of Hainan island, were 2 families 3 subfamilies 6 genera 8 kinds, which were Enhalus acoroides, Thalassia hemprichii, Cymodocea rotunda, Cymodocea serrulata, Halodule uninervis, Syringodium isoetifolium, Halophila minor, Halophila ovalis. The average coverage of the whole seagrass beds was in a downward trend stable, Has decline by 58.60% to 21.12% from 2004 to 2013; The average density of the whole seagrass beds was in a downward trend stable, Has decline by 1756 ind/m2 to 223 ind /m2 from 2004 to 2013; The average biomass of the whole seagrass beds was in a remained stable, mainly for the distribution of Enhalus acoroides was stabilization, with a larger plants and high average biomass, but the distribution of the species as small plants and demanding on the environment has Gradually reduced,and habitat degradation, with the impacted by human activities, Land-source pollution, Ocean engineering and typhoon. This paper hope to through the discussion of the change trend of the seagrass beds in the east coast of Hainan island for nearly a decade, to know the present situation of them, And to enhanced the public's awareness of the protection for the seagrass beds, And to provided scientific theory basis for the protection and restoration of the seagrass beds of Hainan island.
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  • [1] 杨宗岱.中国海草植物地理学的研究[J].海洋湖沼通报,1979(2):41-46.[3]DEN H C.The seagrasses of the world[M].Amsterdam: North Holland Publication,1970:234-275.[5]许战州,朱艾嘉,蔡伟叙,等.流沙湾海草床重金属富集特征[J].生态学报,2011,31(23):7244-7250.[6]王丕烈,韩家波,马志强,等.海南省儒艮资源现状调查[J].兽类学报,2007,27(1):68 -73.[7]李文涛,张秀梅.海草场的生态功能[J].中国海洋大学学报,2009,39(5):933-939.[8]黄小平,黄良民,李颖虹,等.华南沿海主要海草床及其生境威胁[J].科学通报,2006,51:114-119.[10]RONALD C P,MCROY C P.Seagrass research methods [M].Paris:Unesco,1990:19-25.[11]杨宗岱.中国海草的生态学研究[J].海洋科学,1982,(2):34-37.[12]范航清,石雅君,邱广龙.中国海草植物[M].北京: 海洋出版社,2009:1-50.[13]王道儒,吴钟解,陈春华,等.海南岛海草资源分布现状及存在威胁[J].海洋环境科学,2012,31(1):34-39.[14]柯智仁.台湾海草分类与分布之研究[D].台湾: 国立中山大学,2004:45-48.[15]陈石泉,吴钟解,王道儒,等.海南岛海草床群落种间关系研究[J].海洋通报,2013,32(1):78-85.
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Discussion of the change trend of the seagrass beds in the east coast of Hainan Island in nearly a decade

  • 1. Hainan Academy of Ocean and Fisheries Sciences, Haikou 570125, China

Abstract: Statistical analysis of the spices, average coverage, average density and average biomass of the seagrass beds in the east coast of Hainan island, And discussion of the change trend of them for fixed-point monitoring in a long term from 2004 to 2013. The results show that, the often detected seagrass species in the east coast of Hainan island, were 2 families 3 subfamilies 6 genera 8 kinds, which were Enhalus acoroides, Thalassia hemprichii, Cymodocea rotunda, Cymodocea serrulata, Halodule uninervis, Syringodium isoetifolium, Halophila minor, Halophila ovalis. The average coverage of the whole seagrass beds was in a downward trend stable, Has decline by 58.60% to 21.12% from 2004 to 2013; The average density of the whole seagrass beds was in a downward trend stable, Has decline by 1756 ind/m2 to 223 ind /m2 from 2004 to 2013; The average biomass of the whole seagrass beds was in a remained stable, mainly for the distribution of Enhalus acoroides was stabilization, with a larger plants and high average biomass, but the distribution of the species as small plants and demanding on the environment has Gradually reduced,and habitat degradation, with the impacted by human activities, Land-source pollution, Ocean engineering and typhoon. This paper hope to through the discussion of the change trend of the seagrass beds in the east coast of Hainan island for nearly a decade, to know the present situation of them, And to enhanced the public's awareness of the protection for the seagrass beds, And to provided scientific theory basis for the protection and restoration of the seagrass beds of Hainan island.

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