摘要
波罗的海是世界上受人类活动影响最严重的海洋之一,虽然有减少向波罗的海排放营养物质的国际协议,但迄今为止采取的措施,既没有从根本上减少营养物质的排放,也没有促进环境的改善。部分原因可以归咎为缺少有关物理学、生物地球化学和生态特性之间大尺度关系和相互作用的知识,但是还缺少全流域范围的成本效益分析。错误的决策非常危险,例如,执行的减少排放的方案根本没有效果,或远远达不到成本效益。许多学科的研究者正面临着一个共同的挑战:开发一个决策支持系统,作为整个波罗的海成本效益分析法的科学基础。研究项目海洋富营养化的研究(MARE)(http://www.mare.su.se)正致力于这方面的研究。
The Baltic Sea is one of the world's seas that is most severely affected by human activities. Although there is an international agreement that nutrient input to the Baltic should be reduced, the measures taken so far have not resulted in major reductions in nutrient Inputs nor in environmental improvements. The reasons for this are partly due to lack of knowledge on large-scale relationships and couplings between physics, biogeochemistry and ecological properties. But there is also a lack ot overall drainage basin-wide analyses nn cost-effective measures. There is a danger in making the wrong decisions, e.g. implement reduction schemes that are at worst ineffective or at best, far from cost effective. Researchers from many disciplines are faced with a common challenge: To develop a decision-support system, which can be used as the scientific base for cost-effective measures far the entire Baltic Sea. Such an effert is now being made within the research program MARE (http://WWW.mare.su.se).
