海洋环境科学
海洋環境科學
해양배경과학
MARINE ENVIRONMENTAL SCIENCE
2009年
4期
421-425
,共5页
柯东胜%彭晓娟%吴玲铃%兰圣迎
柯東勝%彭曉娟%吳玲鈴%蘭聖迎
가동성%팽효연%오령령%란골영
典型生态系统%调查与分析%大亚湾
典型生態繫統%調查與分析%大亞灣
전형생태계통%조사여분석%대아만
typical ecosystem%survey and analysis%Daya Bay
大亚湾典型生态系统状况调查表明:过度捕捞,乱捕及违禁捕捞使大亚湾水产资源大幅下降,传统的渔汛早已不复存在;岸线、海滩过度开发、非法盗猎、航道阻隔、海域环境污染和诸多人为误捕、滥杀和破坏产卵环境等原因,大亚湾绿海龟的生存环境受到严重威胁;港口开发和水下爆破等致使珊瑚礁群落的优势种发生改变及石珊瑚出现白化现象;大型海岸工程的建设和过度对滩涂的围垦养殖,导致大亚湾红树林多以小簇或单株零散分布,红树林生态系统已处于一种极不健康的状态;大亚湾地区的滨海湿地面积逐年减少,人工湿地面积逐渐增大,天然湿地林相退化严重,湿地的外貌和结构日趋简单,降低了湿地生态和环境的功能.
大亞灣典型生態繫統狀況調查錶明:過度捕撈,亂捕及違禁捕撈使大亞灣水產資源大幅下降,傳統的漁汛早已不複存在;岸線、海灘過度開髮、非法盜獵、航道阻隔、海域環境汙染和諸多人為誤捕、濫殺和破壞產卵環境等原因,大亞灣綠海龜的生存環境受到嚴重威脅;港口開髮和水下爆破等緻使珊瑚礁群落的優勢種髮生改變及石珊瑚齣現白化現象;大型海岸工程的建設和過度對灘塗的圍墾養殖,導緻大亞灣紅樹林多以小簇或單株零散分佈,紅樹林生態繫統已處于一種極不健康的狀態;大亞灣地區的濱海濕地麵積逐年減少,人工濕地麵積逐漸增大,天然濕地林相退化嚴重,濕地的外貌和結構日趨簡單,降低瞭濕地生態和環境的功能.
대아만전형생태계통상황조사표명:과도포로,란포급위금포로사대아만수산자원대폭하강,전통적어신조이불복존재;안선、해탄과도개발、비법도작、항도조격、해역배경오염화제다인위오포、람살화파배산란배경등원인,대아만록해구적생존배경수도엄중위협;항구개발화수하폭파등치사산호초군락적우세충발생개변급석산호출현백화현상;대형해안공정적건설화과도대탄도적위은양식,도치대아만홍수림다이소족혹단주령산분포,홍수림생태계통이처우일충겁불건강적상태;대아만지구적빈해습지면적축년감소,인공습지면적축점증대,천연습지림상퇴화엄중,습지적외모화결구일추간단,강저료습지생태화배경적공능.
The survey of the typical ecosystem status was carried out in Daya Bay. The paper deals with the overfishing and violating fishing resulted in the aquatic stocks in Daya Bay, and then no regular fishing season formed, the excessive exploitation of shoreline and beach, unlawful poaching, shipping lane obstructing, and the marine polluting, spawning conditions destroyed by the green turtle habitat. The seaport construction and submarine explosion obviously affected the coral reef ecosystem and resulted in the dominant variation of coral reef community as well as albinism phinomena of coral reef. The excessive buildings in the seashore led to the mangrove distributing in little cluster or individual, hence the mangrove ecosystem was in unhealthy status. The coast wetland in Daya Bay was decreased year by year. While the man-made wetland area was gradually increased, the natural wetland forest phase was decreased seriously. The wetland appearance and pattern was of blankness and wetland ecosystem function dropped.