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首页> 外文期刊>Regional Environmental Change >Mangrove forest decline: consequences for livelihoods and environment in South Sulawesi
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Mangrove forest decline: consequences for livelihoods and environment in South Sulawesi

机译：红树林砍伐：对南苏拉威西省生计和环境的影响

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摘要

Mangrove forests in the tropics and subtropics grow in saline sediments in coastal and estuarine environments. Preservation of mangrove forests is important for many reasons, including the prevention of coastal erosion and seawater intrusion; the provision of spawning, nursery, and feeding grounds of diverse marine biota; and for direct use (such as firewood, charcoal, and construction material)-all of which benefit the sustainability of local communities. However, for many mangrove areas of the world, unsustainable resource utilization and the profit orientation of communities have often led to rapid and severe mangrove loss with serious consequences. The mangrove forests of the Takalar District, South Sulawesi, are studied here as a case area that has suffered from degradation and declining spatial extent during recent decades. On the basis of a post-classification comparison of change detection from satellite imagery and a survey of households, we provide an estimate of the mangrove change in the Takalar District during 1979-2011 and the consequences of those changes. Mangrove forest areas were reduced by 66.05 % (3344 hectares) during the 33-year period of analysis, and the biggest annual negative change in dense mangrove forest cover (8.37 %) occurred during the period 2006-2011. The changes were caused mainly by the mangrove clearing and conversion to aquaculture, and consequences have been increasing forest degradation, coastal abrasion, seawater intrusion, a decline in fish capture, a reduction in juvenile shrimp and milkfish, and outbreaks of shrimp disease. On the other hand, the clearing and impoundment of mangrove forests for shrimp and seaweed culture have provided a source of foreign exchange and new opportunities for employment in the study area.
机译：热带和亚热带的红树林生长在沿海和河口环境中的盐分沉积物中。出于多种原因，保护红树林非常重要，其中包括防止海岸侵蚀和海水入侵；提供各种海洋生物的产卵场，育苗场和觅食场；以及直接使用（例如木柴，木炭和建筑材料），所有这些都有利于当地社区的可持续发展。但是，对于世界上许多红树林地区，资源的不可持续利用和社区的利益导向常常导致红树林迅速而严重地丧失，并带来严重后果。这里以南苏拉威西省塔卡拉尔地区的红树林为例，该地区在近几十年来遭受了退化和空间范围的缩小。在对分类后的卫星图像变化检测和家庭调查进行比较的基础上，我们提供了1979-2011年塔卡拉尔地区红树林变化的估计值以及这些变化的后果。在33年的分析期间，红树林的面积减少了66.05％（3344公顷），而密集的红树林覆盖率的年度最大负变化（8.37％）发生在2006-2011年期间。这些变化主要是由红树林的砍伐和向水产养殖的转化造成的，其后果是森林退化加剧，沿海磨损，海水入侵，鱼类捕获量减少，幼虾和遮目鱼减少以及虾病暴发。另一方面，为虾和海藻养殖开垦和封存红树林为研究区域提供了外汇来源和新的就业机会。

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  • 来源
    《Regional Environmental Change》 |2017年第1期|157-169|共13页
  • 作者

    Malik Abdul; Mertz Ole; Fensholt Rasmus;

  • 作者单位

    State Univ Makassar UNM, Dept Geog, Jl Malengkeri Raya,Kampus Parangtambung, Makassar, Indonesia|Univ Copenhagen, Sect Geog, Dept Geosci & Nat Resource Management, OsterVoldgade 10, DK-1350 Copenhagen K, Denmark;

    Univ Copenhagen, Sect Geog, Dept Geosci & Nat Resource Management, OsterVoldgade 10, DK-1350 Copenhagen K, Denmark;

    Univ Copenhagen, Sect Geog, Dept Geosci & Nat Resource Management, OsterVoldgade 10, DK-1350 Copenhagen K, Denmark;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Mangrove forest; Forest degradation; Livelihoods; Remote sensing;

    机译：红树林;森林退化;生计;遥感;

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