陕西黄河湿地省级自然保护区湿地生态系统服务价值研究

The Value of Wetland Ecosystem Services in Shaanxi Yellow River Wetl and Provincial Nature Reserve

采用影子工程法、市场价格法、成果参照法、费用支出法等方法,对陕西黄河湿地省级自然保护区湿地生态系统服务价值进行了估算,结果为该保护区湿地生态系统服务总价值为7 201 942.0×10~3元·a^(-1),其中防洪蓄水与补充地下水占39.3%、蒸发水量与吸收热量占28.2%,固碳释氧占11.1%、维持生物多样性占9.7%、食物生产占8.1%、环境教育占1.5%、水资源供给占1.1%、生存栖息地占1.0%,单位面积湿地价值平均为209.4×10~3元·hm^(-2)·a^(-1),高于全国国际重要湿地平均值和山东黄河三角洲国家级自然保护区湿地平均价值,处在较高水平;今后应强化鸟类保护和食物性生产管理。

Shaanxi yellow river wetland nature reserve is one of the important nodes on the migration channel of birds in China,and is also an important wetland in Shaanxi province,with its diverse wetland habitats and abundant wildlife resources,which are of extremely high protection and demonstration value.Based on the methods of shadow project,market price determination,output reference and cost determination,the ecosystem service value of the wetland nature reserve is evaluated as RMB 7201942.0×10^3 per year,of which flooding regulation and underground water compensation accounts for 39.3%,evaporation and heat absorption accounts for 28.2%,carbon requestration11.1%,biodiversity retention9.7%,food production 8.1%,environmental education1.5%,water resources supply1.1%and habitat protection 1.0%.The unit area value is RMB 209.4×10^3 per year,above the mean value of state wetland ecosystem service and national wetland nature reserve in Shandong.