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通过介绍互花米草及其在上海地区的分布状况,以2006年为基准年,利用能值分析法、市场价值法、专家评估法、替代市场法、防护费用法和恢复费用法等方法,评估上海地区互花米草提供的生态服务价值,包括促淤造陆、消浪护岸、大气组分调节、物质生产、水分调节、营养积累以及净化功能等七项价值,以反映其正面生态效益,估算出2006年上海地区互花米草提供的总价值约为15.93亿元/a,其中物质生产以及大气组分调节价值较大,促淤造陆次之;并从环境和经济两方面分析了上海地区互花米草所带来的负面效益。提出不应夸大互花米草的负面效应。
By introducing Spartina alterniflora and its distribution in Shanghai, taking 2006 as the base year, using the methods of emergy analysis, market value method, expert evaluation method, alternative market method, protection cost method and recovery cost method, To evaluate the value of ecological services provided by Spartina alterniflora in Shanghai, including seven values of promoting siltation, landfills, atmospheric composition regulation, material production, water regulation, nutrient accumulation and purification functions to reflect the positive ecological benefits , Estimated that the total value of Spartina alterniflora in Shanghai in 2006 was about 1.593 billion yuan / a, of which the value of material production and the adjustment of atmospheric composition were relatively large, followed by siltation and land loss; and from the aspects of environment and economy The negative benefits brought by Spartina alterniflora in Shanghai. It is suggested that the negative effects of Spartina alterniflora should not be overstated.