摘要
应用生态经济系统能值分析理论和方法,定量分析了西溪湿地公园建立前后生态经济系统的物流和能流,并通过建立新的能值指标从生态环境和经济角度评价了系统的可持续发展能力和产出效率,以期为湿地公园保护模式研究提供借鉴。研究结果表明,西溪湿地公园建立以后,每年能值总投入增加到原来的1.6倍,能值总产出是原来的1.9倍;能值总产出中经济收入减少,但环境产出大幅度增加,其中有机物质产出和生态系统服务能值产出分别是原来的1.5倍和2.3倍。能值指标分析结果表明,湿地公园建立以后系统净环境效益提高,可持续发展能力增强,经济产出率有所降低。研究结果证明,建立湿地公园增加经济投入,改善生态环境,并适当发展湿地旅游增加经济收入,保障系统反馈,能够提高系统可持续发展能力,是湿地资源保护与合理开发利用的有效模式。
In the study, the material and energy flows of Xixi wetland with or without the establishing of Wetland Park were quantitatively analyzed using the theory of ecological economic system. With the aim of providing reference for wetland park protection pattern research, the sustainability and productive efficiency of the system were assessed from the view of environment and economy through forming new emergy indices. The resuhs showed, the annual total emergy input and output was 1.6 times and 1.9 times greater than the previous system after the establishing of Wetland Park. Although the economic income was decreasing, the environmental outputs greatly increased, with the organic matter yield and service yield were 1.5 times and 2.3 times greater, respectively. Besides, the results of emergy indices analysis indicated the establishing of Wetland Park would result in the increased net environmental benefits and improved sustainability. Conclusion can be drawn that Wetland Park is an efficient approach to reasonably protect and utilize wetland resources, meanwhile it can improve sustainability by increasing feedback, improving ecological environment and traveling.
出处
《生态学报》
CAS
CSCD
北大核心
2009年第3期1285-1291,共7页
Acta Ecologica Sinica
基金
国家自然科学基金资助项目(40701177)
浙江省科技计划重点课题资助项目(2005C23059)
宁波大学科研基金资助项目(XY0700022)
关键词
湿地公园
能值分析
生态经济效益
西溪
Wetland Park
emergy analysis
ecological and economic profit
Xixi
