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[1]ZHAO Jing,GAO Zhao-liang,CAI Yan-rong.Impacts of Expressway Construction on Land Use Types and Assessment on the Ecosystem Service Value——A Case Study of Five Typical Areas in Shaanxi Province[J].Research of Soil and Water Conservation,2011,18(03):226-231,237.

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Impacts of Expressway Construction on Land Use Types and Assessment on the Ecosystem Service Value——A Case Study of Five Typical Areas in Shaanxi Province

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 18 Number of periods: 2011 03 Page number: 226-231,237 Column: Public date: 2011-06-20

Title:: Impacts of Expressway Construction on Land Use Types and Assessment on the Ecosystem Service Value——A Case Study of Five Typical Areas in Shaanxi Province

Author(s):: ZHAO Jing¹, GAO Zhao-liang^1,2, CAI Yan-rong¹; 1. College of Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China;
2. Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi 712100, China

Keywords:: expressway; land use type; services value of ecosystem

CLC:: X171.1;U412.1⁺4

DOI:: -

Abstract:: Based on the land use and planning,change of ecosystem service value of different periods of expressway construction was evaluated with referring to the table of R.Costanza’s calculation method of ecosystem service function value and Chinese land ecosystem services value of unit area and land area.The effect of land use planning of expressway construction on regional ecological environment was assessed quantificationally.The results showed that(1) Farmland,orchard,woodland and grassland were the four main land types occupied by expressway construction of five regions.The areas of farmland and orchard demonstrated decline trend in each region,but the areas of woodland and grassland increased in some regions.The range of changes followed the order of orchard>woodland>farmland>grassland;(2) The total service value of ecosystem had decline trend in four regions except the Zizhou-Jingbian expressway in sand drift areas.The total service value of ecosystem of sand drift areas increased from 0.86×10⁴ Yuan/km to 5.02×10⁴ Yuan/km,increased by 484.45%.On the other four regions’ decrease side,loess hilly region(Jingbian-Ansai) >rocky mountainous area(Lantian-Shangluo) >low mountain rolling area(Shangluo-Danfeng) >loess terraces area(airport expressway);(3) Biological control function in five areas had a decreasing tendency,climate regulation and waste treatment functions decreased obviously in sand drift areas.Each function reduced by between 25% and 42% in loess hilly region.Water supply and erosion control function values decreased by 368%,268% and 170%,162% in loess terraces area and low mountain area,respectively.

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