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机构地区:[1]中农威特生物科技股份有限公司,甘肃兰州730046 [2]甘肃省玛曲县草原总站,甘肃玛曲747300 [3]甘肃省林业科学研究院,甘肃兰州730020
出 处:《草业科学》2010年第1期25-30,共6页Pratacultural Science
基 金:甘肃省科技重大攻关项目(2GS063-A31-010);甘肃省科学技术厅事业费项目(0805TCYA020)
摘 要:结合试验和调查,综合运用市场价值法、替代费用法和影子工程法,从11类服务功能方面对黄河首曲—玛曲高寒湿地生态系统服务功能进行了定量估算,旨在为该地区经济发展及科学合理地保护和利用湿地资源提供依据。结果表明:玛曲高寒湿地生态服务功能总价值达159.42亿元/a,是该地区国民生产总值的36.65倍。其中以水文调节功能最大,为57.72亿元/a。其次为水源补给、文化科研、营养循环与储存和气候调节功能,分别为32.43亿、12.50亿、12.38亿和11.37亿元/a,环境净化、物质生产、生物多样性保护、土壤形成与保护和大气组分调节功能,分别为9.24亿、8.48亿、8.31亿、5.67亿和1.09亿元/a,休闲娱乐功能最低(0.23亿元/a)。充分说明,玛曲高寒湿地是"中国西部高原之肾",是黄河上游重要水源补给区和蓄洪区,是黄河上游生态系统的绿色生态屏障,对保证中下游地区生态安全具有重要的战略地位。This paper combined experiments with investigates, synthetically utilized methods such as market value law, substitution expense law and shadow project law, made the quota evaluation of the service function value of Maqu alpine wetland ecosystem in the first meander of the Yellow River, to provide basis for local economic development and scientifically and reasonably protection and utilization of the wetland resources from 11 kinds of service function aspects. The result indicated that the total value of Maqu alpine wetland ecology service funetion reached 159.42 × 10^8 Yuan/a, it was 36.65 times of gross national product of this area. The hydrology adjustment function was 57. 72 × 10^8 Yuan/a, followed by water source supplies, cultural scientific research, nutrition circulation and storage and climate control function, which was 32.43 × 10^8 8 Yuan/a, 12.50 × 10^8 Yuan/a, 12. 38× 10^8 Yuan/a and 11.37 × 10^8 Yuan/a, respectively. The environment purification, physical production, biodiversity protection, soil formation and protection, atmospheric component adjustment function were 9.24 × 10^8 Yuan/a, 8.48 × 10^8 Yuan/a, 8. 31 × 10^8 Yuan/a, 5.67 × 10^8 Yuan/a, and 1.09 × 10^8 Yuan/a, respectively. The recreation function was the lowest with 0.23× 10^8 Yuan/a. This fully explained that the Maqu alpine wetland was "the kidney of the plateau in west China", it was important water source supplies area and the flood storage area in the Yellow River upstream, it was green ecology harrier of the Yellow River upstream ecosystem, and it has important strategic position for ensuring the ecological security of middle and lower reaches area.
分 类 号:X171.1[环境科学与工程—环境科学]
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