深澳湾海水养殖生态系统健康评价

生态学杂志

深澳湾海水养殖生态系统健康评价

谢玲¹,李海燕²,徐华兵¹,钟名其²,陈伟洲¹,杜虹^2**

(¹汕头大学海洋生物研究所，广东汕头 515000； ^2汕头大学生物系，广东汕头 515000)

出版日期:2014-05-10 发布日期:2014-05-10

Health assessment of mariculture ecosystem in Shen’ao Bay.

XIE Ling¹, LI Hai-yan², XU Hua-bing¹, ZHONG Ming-qi², CHEN Wei-zhou¹, DU Hong^2**

(¹Marine Biology Institute, Shantou University, Shantou 515000, Guangdong, China; ²Department of Biology, Shantou University, Shantou 515000, Guangdong, China)

Online:2014-05-10 Published:2014-05-10

摘要/Abstract

摘要：

深澳湾是粤东地区典型的海水养殖基地，多年的海水养殖活动导致了富营养化等环境问题。本文采用压力-状态-响应（PSR）模型，进行深澳湾养殖生态系统健康状况的模糊综合评价。结果表明：深澳湾生态系统的隶属度为0.4983，处于很健康的状态；包含的7个生态要素的最大隶属度分别为0.5717、0.3714、0.5215、0.5942、0.6014、0.7792和0.6562，其中只有直接压力的隶属度处于不健康和亚健康状态，其他要素都处于健康水平以上；影响该生态系统整体健康状况的主要原因是养殖品种过多和养殖面积过大，另外，海洋初级生产力和养殖产值年增长率偏低也对总体健康状况有一定的影响。

关键词: 黄壤, 长期氮磷钾肥配施, 相对产量, 土壤养分可持续性指数

Abstract:

Shen’ao Bay is one of the typical marine culture bases in the eastern Guangdong Province. Long-term mariculture activities lead to some environmental problems, such as eutrophication. In this paper, the pressurestateresponse model (PSR) was used to evaluate the health status of mariculture ecosystem in Shen’ao Bay with the fuzzy comprehensive evaluation method. The results showed the membership of Shen’ao Bay was 0.4983, suggesting that the ecosystem was in a very healthy state. The maximum memberships of the seven ecological elements were 0.5717, 0.3714, 0.5215, 0.5942, 0.6014, 0.7792, and 0.6562, respectively. Except that the membership of direct pressure element was in unhealthy and subhealth states, the other remained elements were above healthy levels. The main factors affecting the overall healthy status of the ecosystem included the excessive varieties of cultivation and the excessively large cultivation area. In addition, the low primary productivity and the low annual growth rate of aquaculture production contributed, to some extent, to the overall unhealthy status.

Key words: yellow soil, relative yield, long-term application of NPK fertilizer, sustainability index of soil nutrients

谢玲1,李海燕2,徐华兵1,钟名其2,陈伟洲1,杜虹2**. 深澳湾海水养殖生态系统健康评价[J]. 生态学杂志.

XIE Ling1, LI Hai-yan2, XU Hua-bing1, ZHONG Ming-qi2, CHEN Wei-zhou1, DU Hong2**. Health assessment of mariculture ecosystem in Shen’ao Bay.[J]. cje.

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