Regional Comparison of the Ecosystem Services from Seagrass Beds in Asia-猫眼课题宝

DOI：

10.1007/978-4-431-54783-9_20

发表时间：

2014

期刊：

影响因子：

通讯作者：

中科院分区：

其他

文献类型：

作者：

M. Nakaoka;Kun-Seop Lee;Xiaoping Huang;Tutu Almonte;J. Bujang;W. Kiswara;R. Ambo-Rappe;S. M. Yaakub;M. P. Prabhakaran;M. Hena;Masakazu Hori;Pei-dong Zhang;A. Prathep;M. Fortes

沿海生态系统为人类社会提供宝贵的服务。然而，这些生态系统正面临着人类造成的压力的多重影响，包括过度开发、富营养化、土地建设和全球气候变化。由于非线性效应和累积效应同时作用，因此很难预测多重影响下沿海生态系统的长期变化。对于亚洲地区来说，这一困难尤其明显，那里的沿海生物多样性是世界上最高的，但研究却最少。在本章中，我们根据研究各地沿海生态系统的从业者的专业知识，对亚洲沿海地区的生态系统服务进行了比较。我们特别关注海草床，它为人类提供重要的服务，包括提供海鲜和调节水条件。我们在从日本到印度的 13 个海草床中分别选择了六种最重要的生态系统服务，并评估了过去二十年的变化方向。我们还评估了每项服务的公众意识和数据确定性。食物供应、水净化和废物处理、侵蚀调节、娱乐和生态旅游以及教育价值被选为海草床的主要生态系统服务。据报道，在过去 10-20 年间，大多数供应和监管服务都出现了退化，而大多数地点的文化服务却呈现出改善的趋势。对于提供服务来说，公众的信息意识和确定性普遍较高，但对于大多数监管服务来说，公众意识和信息确定性较低。对于所检查的变量，没有检测到沿纬度的区域变化以及温带和热带海草床之间的差异。生态系统服务的区域比较揭示了海草床状况的一般和具体方面，这将为在多种人类影响下规划有效的保护和管理战略提供基线数据。

Coastal ecosystems offer valuable services to human society. However, these ecosystems are facing multiple impacts of human-induced stress, including overexploitation, eutrophication, land construction, and global climate change. The prediction of long-term changes in coastal ecosystems under multiple impacts is difficult because nonlinear and cumulative effects operate simultaneously. This difficulty is especially true for Asian regions, where coastal biodiversity is the world’s highest but the least studied. In this chapter, we compare ecosystem services of coastal areas of Asia based on the expert knowledge of practioners who study coastal ecosystems at each locality. We especially focused on seagrass beds, which provide important services to humans including provision of seafood and regulation of water conditions. We selected the six most important ecosystem services at each of 13 seagrass beds ranging from Japan to India and evaluated the direction of changes over the past two decades. We also evaluated public awareness and data certainty for each service. Food provisioning, water purification and waste treatment, erosion regulation, recreation and ecotourism, and educational values were selected as major ecosystem services of seagrass beds. Degradation during the over past 10–20 years was reported for most provisioning and regulating services, whereas improving trend was found for cultural services in most sites. Public awareness and certainty of information were generally high for provisioning services, but low for most regulating services. Regional variation along latitude, and differences between temperate and tropical seagrass beds, were not detected for the examined variables. Regional comparisons of ecosystem services shed light on general and specific aspects of the status of seagrass beds, which will provide baseline data for planning effective conservation and management strategies under multiple human impacts.

Regional Comparison of the Ecosystem Services from Seagrass Beds in Asia

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