北京翠湖湿地生态能值分析

依据能值分析理论对北京翠湖湿地生态系统服务功能价值进行评价。结果表明,北京翠湖湿地的投入量太阳能值为5 094.85×1015sej,不可再生能源或资源能值为132.67×1015sej,初级生产力为42 549.575×1015sej,资本投入/产出中的生态服务、生态旅游和科研工作太阳能值分别为291.00×1015sej、122.00×1015sej、33.00×1015sej,总计446.00×1015sej;水生动物中鱼类等和浮游动物太阳能值分别为1 189.76×1015sej和8.84×1015sej,总计1 198.6×1015sej;湿地水禽(特殊保护)太阳能值为1 946.7×1015sej,说明北京翠湖湿地生态系统整体投入/产出的效益良好。北京翠湖湿地生态价值主要表现为初级生产力、湿地水禽和水生动物。

Ecological Emergy of Cuihu National Urban Wetland Park in Beijing

Emergy and ecological service function of Cuihu wetland were estimated on the base of emergy analysis theory. By collecting field investigating data and historical information, results showed that the solar emergy input was 5094.85 × 1015sej, irreproducible emergy and resource was 132.67 × 1015sej, the elementary productivity was 42549. 575 × 1015 sej, the solar emergy of ecological service, ecological tourism and research work in the input/output system was 291.00 × 1015sej, 122.00 × 1015sej, 33.00× 1015 sej respectively, and summed up to 446.00 × 1015 sej. The solar emergy of fish and zooplankton in a- quatic animal was 1189.76 × 1015sej and 8.84 ×1015sej respectively, and summed up to 1198.6 × 1015 sej. The solar emergy of wetland water fowls was 1946.7 × 1015 sej. The benefit in the integrated input/ output system of Cuihu wetland ecosystem was fine. The ecological emergy of cuihu wetland was consid- ered as elementary productivity, wetland water fowls and aquatic anima.