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银川湖泊湿地生态系统服务价值评估

邵宁平;刘小鹏;渠晓毅   

  1. 宁夏大学资源环境学院, 银川 750021
  • 收稿日期:2008-02-04 修回日期:1900-01-01 出版日期:2008-09-10 发布日期:2008-09-10

Valuation of lake wetland ecosystem services of Yinchuan City.

SHAO Ning-ping;LIU Xiao-peng;QU Xiao-yi   

  1. School of Resource and Environment, Ningxia University, Yinchuan 750021, China
  • Received:2008-02-04 Revised:1900-01-01 Online:2008-09-10 Published:2008-09-10

摘要: 银川市是西北干旱半干旱区典型的绿洲区域,湖泊湿地是银川市最具特色和影响的生态资源。采用市场价格法、影子价格法、替代费用法、费用支出法、碳税法、成果参照法、影子工程法等,对银川市湖泊湿地生态系统服务价值进行了评估,结果显示,每年其提供的总价值为130 288万元。其中,以物质生产价值最大为54 765万元,其余依次是调节气候价值、生物多样性价值、休闲娱乐价值、教学科研价值、涵养水源和蓄洪防旱价值、栖息地价值、水源供给价值、净化水质和美化环境价值,其价值量分别为25 851、20 000、9 661、7 460、5 360、5 000、1 889、302万元。因此,在银川市经济发展和城市扩张的过程中,必须从整个生态系统的角度出发,科学合理地保护和利用湿地资源。

关键词: 生防真菌, 耐旱生理, 水活度调控, 菌剂改良, 微生物防治

Abstract: Yinchuan City is a typical oasis area in arid and semi-arid region of Northwest China, and its lake wetland is a kind of most characteristic and significant ecological resources. By the methods of market price, shadow price, substitute expense, expenditure, carbon tax, outcome reference, and shadow engineering, etc., the lake wetland ecosystem services of the city were evaluated. The results showed that this ecosystem provided a total of 130 288×104 yuan services per year, among which, the service of material production was the largest (54 765×104 yuan), followed by that of climatic regulation (25 851×104 yuan), biological diversity (20 000×104 yuan), recreation (9 661×104 yuan), teaching and scientific research (7 460×104 yuan), water conservation and flood and drought control (5 360×104 yuan), habitat (5 000×104 yuan), water supply (1 889×104 yuan), and water purification and environmental landscaping (302×104 yuan). Therefore, in the economic development and urban expansion of Yinchuan City, a scientific utilization and protection of its wetland resources should be taken, based on the consideration of whole ecosystem.

Key words: Fungal biocontrol agents, Xero-tolerant physiology, Water activity regulation, Formulation enhancement, Microbial control