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
纸质出版:2019
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程琳琳, 黄婷, 刘焱序. 基于改进价值当量因子的1992-2015年青藏高原生态系统服务价值演化分析[J]. 水土保持通报, 2019,39(5):242-248.
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.
程琳琳, 黄婷, 刘焱序. 基于改进价值当量因子的1992-2015年青藏高原生态系统服务价值演化分析[J]. 水土保持通报, 2019,39(5):242-248. DOI: 10.13961/j.cnki.stbctb.2019.05.034.
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.
[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
11
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
12
元,支持服务和供给服务其次分别为1.33×10
12
元和5.50×10
11
元,文化服务价值最低为2.90×10
11
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。
[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.
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