青海省门源县湿地生态系统服务功能价值估算

Evaluation on the Service Function Values of Wetland Ecosystem in Menyuan County of Qinghai Province

基于遥感监测与样地调查,采用直接市场法和替代市场法,对2014年青海省门源县湿地生态系统服务功能价值进行了估算。结果表明:1)门源县湿地资源面积14 754.01hm2,其中自然湿地占97.77%、人工湿地占2.23%,分为4类6型,河流湿地>沼泽湿地>人工湿地>湖泊湿地;2)门源县生态系统服务功能总价值为143 752.966 9万元,其中供给功能价值为40 466.678 0万元、调节功能价值45 571.197 6万元、文化功能价值14 146.808 7万元、支持功能价值43 568.281 7万元,调节功能>支持功能>供给功能>文化功能。

Based on remote sensing satellite monitoring and sample investigation methods, wetland resourcesin Menyuan County of Qinghai Province in 2014 was studied; On this basis, direct market value approachand surrogate market approach were adopted to assess the service-function values of wetland ecosystem inMenyuan county in 2014. The results indicate that the total area of wetlands in Menyuan county is about14 754. 01 hm2 ,of which 97. 77 percent is natural-wetland ,2. 23 percent is artificial-wetland and divided into4 classes,6 types. Wetland composition proportion decreasingly ranks as river wetland, swamp wetland,artificialwetland and lake wetland. Meanwhile, the results also indicate that the service-function values ofwetland ecosystem in Menyuan county in 2014 has achieved 1437. 529 669 million yuan RMB,among thatsupply function value is 404.666 790 millipn yuan RMB, regulating function value is 455.711 976 millionyuan RMB,cultural function value is 141.468 087 million yuan RMB,support function value is 435.682 817million yuan RMB. Apparently the service-function value composition proportion decreasingly ranks as regulatingfunction, support function, supply function, and cultural function.