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Mangrove ecofarming in Guangxi Province China: an innovative approach to sustainable mangrove use

机译：中国广西省的红树林生态农业：可持续利用红树林的创新方法

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摘要

Following 7 years of field trials conducted in the mangrove areas of Guangxi Province, China, between 2007 and 2012, a mariculture system has been developed that greatly enhances natural productivity. This system is based on the installation of underground tubes and has resulted in annual mean production values of between 27 000, and 45 000 US$ per hectare~1 per annum without requiring cutting or conversion of mangrove vegetation. This article provides details of the system, its construction, operation, economics and production. Consisting of a network of underground tubes, erect pipes and management chambers, this system is based on enhancing the spatial heterogeneity of the benthic environment by burying plastic pipes in the mangrove soils, thus providing refuges for economically important fish with minimal disturbance to the mangrove root system. Landward shrimp ponds can be used as reservoirs to oxygenate the water in the system during low tide. Molluscs are raised on mudflat surfaces within the habitat. The ecofarming site is accessed by boardwalks that also facilitate ecotourism and public education. This ecofarming system is environmentally friendly because no enclosures are constructed and there is no industrial feed input. The bulk of the system is buried within the mangrove soils consequently it is resistant to storm and tidal surges, is easy to control and has low management cost, whilst the products are of high quality and have high recapture rates. To date, ten indigenous species have been tested, and five of them have been successfully raised and harvested. The underground tube ecofarming system is unique and not derived from any similar system currently in operation elsewhere in mangrove ecosystems.2
机译：在2007年至2012年之间，在中国广西省的红树林地区进行了7年的田间试验之后，开发了一种可大大提高自然生产力的海水养殖系统。该系统基于地下管道的安装，在不砍伐或转换红树林植被的情况下，每年的平均产值在每公顷2.7〜4.5万美元〜1之间。本文详细介绍了该系统，其构建，运行，经济性和生产性。该系统由地下管网，直立管网和管理室组成，其基础是通过在红树林土壤中埋入塑料管来增强底栖环境的空间异质性，从而为经济上重要的鱼类提供避难所，而对红树林根系的干扰最小系统。陆上虾塘可在退潮时用作储水池，以充氧系统中的水。软体动物生长在栖息地内的泥滩上。木板人行道可通往生态农业网站，也可促进生态旅游和公众教育。这种生态农业系统对环境无害，因为没有建造围栏，也没有工业饲料输入。该系统的大部分被掩埋在红树林土壤中，因此可以抵御风暴潮和潮汐，易于控制且管理成本低廉，而产品质量高且捕获率高。迄今为止，已经对10种土著物种进行了测试，其中5种已经成功培育和收获。地下管道生态耕作系统是独特的，不是从红树林生态系统中其他地方目前正在运行的任何类似系统中衍生出来的。2

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  • 来源
    《Ocean & coastal management》 |2013年第ptab期|201-208|共8页
  • 作者

    Hangqing Fan; Binyuan He; John C. Pernetta;

  • 作者单位

    Guangxi University, Naming, China;

    Guangxi Mangrove Research Center, Beihai, China Guangxi Mangrove Conservation Key Lab, Beihai, China;

    35/323 Yingrouwes Niwet, Bangtalad, Pak Kret, Nonthaburi 11120, Thailand;

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