Estimation of indirect values of forest ecosystem services in a typical forest area of Qilian Mountains.

cje ›› 2011, Vol. 30 ›› Issue (03): 569-575.

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Estimation of indirect values of forest ecosystem services in a typical forest area of Qilian Mountains.

TANG Cui-wen1,2**, TAO Ling1,2, YANG Guo-jing3, SU Yan-ke1, |XIAO Du-ning4

1School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China|2State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China; |3Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China|4Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China

Online:2011-03-08 Published:2011-03-08

Abstract

Abstract: By using conventional and surrogate market approaches, estimation was made on the indirect monetary values of forest ecosystem services, including organic matter production, water and soil conservation, CO₂ fixation, and air purification, in Haxi forest area at the east part of northern slope Qilian Mountains. In the meantime, the ecosystem services values of three vegetation types were compared. The total value of the five ecosystem services in the forest area was 5.2061×10⁸ yuan, among which, woodland occupied 1.951034×10⁸ yuan, shrub land occupied 2.520001×10⁸ yuan, and grassland occupied 0.735065×10⁸ yuan. Calculated by forest land area, the monetary value of indirect ecological services provided by the forest ecosystem in Qilian Mountains was as 3-5 times as that of the Gross National Product in Tianzhu County. Among the three vegetation types, shrub land had the largest monetary values of water and soil conservation services.

Key words: Heavy metals, Combined pollution, Quadratic regression revolution design, Combined effects

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Estimation of indirect values of forest ecosystem services in a typical forest area of Qilian Mountains.

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