【作者】 王蕾； 谢应忠； 许冬梅；

【Author】 Wang Lei~(1,2) Xie Yingzhong~1 Xu Dongmei (1.Pratacultural Science Institute of Ningxia University,Yingchuan,Ningxia 750021;2.Grassland station of Ningxia,Yingchuan,Ningxia 750002 )

【机构】 宁夏大学草业科学研究所； 宁夏草原工作站；

【摘要】 根据草地生态系统单位面积生态服务价值表,在用各草地类型生物量订正的基础上,对宁夏天然草地生态系统的服务价值进行了评估,同时也对宁夏人工草地生态系统的服务价值进行了评估。结果如下:(1)1980年宁夏天然草地生态系统的服务价值为80.67×108元,1997年为43.96×108元,2004年和2005年分别为21.22×108元和16.28×108元。(2)宁夏天然草地生态系统服务的总价值从1980年到2005年逐年降低,温性草甸草原的生态系统服务价值在2004年有所增加,其余草地类型的生态系统服务价值逐年降低。(3)宁夏人工草地的生态系统服务价值逐年增加。(4)宁夏天然草地生态系统服务价值中的经济服务价值所占的比例非常小,生态服务价值占的比例较大。(5)1980年到1997年草地生态系统服务价值明显下降,2004年到2005年没有明显变化,宁夏草地的生态系统服务价值一直在下降,但都比当年的牧业总产值要高。更多还原

【Abstract】 Referring to ecosystem services value unit area of the grassland ecosystem,this article was evaluated the economic value of ecosystem services of grassland in terms of their biomass of grassland types in Ningxia, and evaluated the economic value of ecosystem services of artificial grassland.The results showed that: (1 ) The ecosystem services value of grassland was RMB$80.67×108 in 1980,the ecosystem services value of grassland was RMB$43.96×108 in 1997,The ecosystem services value of grassland was RMB$21.22×108 in 2004,The ecosystem services value of grassland was RMB$16.28×108 in 2005. (2 ) The ecosystem services value of grassland was decreased gradually from 1980 to 1997,The ecosystem services value of Temperate meadow steppe was increased in 2004,that of others types was bellowed gradually. (3 ).The economic value of ecosystem services of artificial grassland was increased gradually. (4 ) The ratio of economic services value was very below,and the ratio of ecological services value was very high in the ecosystem services value of grassland in Ningxia. (5 ) The ecosystem services value of grassland was decreased obviously from 1980 to 1997,the ecosystem services value of grassland was changed obviously from 2004 to 2005.The ecosystem services value of grassland was decreased from 1980 to 2005,but they were higher than livestock of total output value per year.更多还原