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Environment development linkages: modelling a wetland system for ecological and economic value

机译：环境发展联系：为生态和经济价值建立湿地系统模型

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摘要

Modeling the factors determining ecological and economic value gives rise to conceptual and methodological problems. Economic valuation typically focuses on use value in the short run, whether within or outside the market. Ecologists, however, are more concerned with ecological values, which provide an underlying long-run notion of value interpreted in a more general sense. This paper investigates the nature of the link between these two aspects of value in the context of a wetland in Northern India, which is also designated as a Ramsar site and a national park. A dynamic simulation model in a 'STELLA' environment is set up to understand the linkages between underlying ecological relationships and economic value emerging from them. The simulations point towards a critical dependence of economic value (direct and indirect income derived from the park) on ecological health indices. A non-linearity is to be seen in the impact of an increase in ecological health indices on tourist traffic. This responsive or elasticity with respect to ecological health is more at higher values of the indices, indicating thereby that once efforts at conservation increase the attractiveness of the park above a certa in level, the impact may be cumulative and returns in terms of income may rise more than proportionately.
机译：对决定生态和经济价值的因素进行建模会引起概念和方法上的问题。经济估值通常侧重于短期内的使用价值，无论是在市场内还是市场外。然而，生态学家更加关注生态价值，生态价值提供了一种潜在的长期价值观念，可以从更广义的角度进行解释。本文研究了印度北部湿地环境中这两个价值方面之间联系的性质，该湿地也被指定为拉姆萨尔湿地和国家公园。建立了“ STELLA”环境中的动态仿真模型，以了解基础生态关系与由此产生的经济价值之间的联系。模拟表明经济价值（公园的直接和间接收入）对生态健康指数的严重依赖性。生态健康指数的增加对游客流量的影响是非线性的。对生态健康的响应或弹性更多地体现在指数的较高值上，从而表明，一旦保护工作使公园的吸引力增加到超过一定水平，这种影响可能是累积的，收入回报可能会增加不成比例地

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