Analysis on Evolution of Ecosystem Service Value in Qinghai-Tibet Plateau Based on Improved Value Equivalent Factors from 1992 to 2015

Cheng Linlin; Huang Ting; Liu Yanxu

doi:10.13961/j.cnki.stbctb.2019.05.034

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Analysis on Evolution of Ecosystem Service Value in Qinghai-Tibet Plateau Based on Improved Value Equivalent Factors from 1992 to 2015

- Analysis on Evolution of Ecosystem Service Value in Qinghai-Tibet Plateau Based on Improved Value Equivalent Factors from 1992 to 2015
- Bulletin of Soiland Water Conservation Vol. 39, Issue 5, Pages: 242-248(2019)
- 作者机构：
  
  1. 中国矿业大学(北京) 地球科学与测绘工程学院,北京,100083
  2. 北京师范大学地理科学学部地表过程与资源生态国家重点实验室,北京,100875
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2019.05.034
  CLC： F124.5;X171.1
- Published：2019
- 稿件说明：
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Cheng Linlin, Huang Ting, Liu Yanxu. Analysis on Evolution of Ecosystem Service Value in Qinghai-Tibet Plateau Based on Improved Value Equivalent Factors from 1992 to 2015[J]. Bulletin of Soiland Water Conservation, 2019, 39(5): 242-248.
DOI：

Cheng Linlin, Huang Ting, Liu Yanxu. Analysis on Evolution of Ecosystem Service Value in Qinghai-Tibet Plateau Based on Improved Value Equivalent Factors from 1992 to 2015[J]. Bulletin of Soiland Water Conservation, 2019, 39(5): 242-248. DOI： 10.13961/j.cnki.stbctb.2019.05.034.

摘要

[目的

]

基于改进的单位面积生态服务价值基础当量表和土地覆被数据集，评估青藏高原1992-2015年生态系统服务价值演化，为青藏高原生态安全保障提供空间指引。[方法

]

借助改进的单位面积生态服务价值基础当量表，结合CCI-LC长时间序列土地覆被产品评估生态系统服务价值。[结果

]

①1992-2015年青藏高原生态系统服务价值有所提高，24 a间增加了1.62×10

元，且不同生态系统类型的服务价值呈现：草地 > 水域 > 森林 > 湿地 > 农田 > 荒漠的特征；②生态系统调节服务价值量最高，2015年高达5.53×10

元，支持服务和供给服务其次分别为1.33×10

元和5.50×10

元，文化服务价值最低为2.90×10

元；③生态系统服务价值受高程和坡度的影响，在不同的高程和坡度下生态系统服务价值都是先增加后减少，4 000~5 000 m高程范围内和5°~15°坡度范围内的价值量最高。[结论

]

1992-2015年青藏高原生态系统服务总价值得到提高，不同的生态系统以及生态系统服务类型的价值量差异大，地形条件对生态系统服务价值有所影响。

Abstract

[Objective] Based on the improved unit area ecological service value and land cover data set

the evolution of the ecosystem service value of the Qinghai-Tibet Plateau from 1992 to 2015 was evaluated. Aims included providing spatial guidance for the ecological security of the Qinghai-Tibet Plateau.[Methods] We applied the improved value equivalent factor in combination with CCI-LC long-term sequence land cover data to assess ecosystem service values.[Results] ① The value of the ecosystem services on the Qinghai-Tibet Plateau increased form 1992 to 2015

with an increase of 1.62×1011 yuan in 24 years. The values of services of different ecosystem types were ranked:grassland > water area > forest > farmland > wetland > desert. ② The highest value type was the ecosystem regulation service in 2015

which reached 5.53×1012 yuan

whereas the values of support service and supply service were 1.33×1012 yuan and 5.50×1011 yuan

respectively

and the cultural service was of least value at 2.90×1011 yuan. ③ The ecosystem service value was affected by elevation and slope

whereby the highest value was in the range of 4 000~5 000 m elevation and 5°~15° slope.[Conclusion] The total value of the ecosystem services in the Qinghai-Tibet Plateau increased from 1992 to 2015

and the value of different ecosystems and ecosystem service types varied greatly. Terrain conditions affected the value of ecosystem services.

关键词

Keywords

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