%0 Journal Article %T 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 %T Analysis on Evolution of Ecosystem Service Value in Qinghai-Tibet Plateau Based on Improved Value Equivalent Factors from 1992 to 2015 %A 程琳琳 %A 黄婷 %A 刘焱序 %A Cheng Linlin %A Huang Ting %A Liu Yanxu %J 水土保持通报 %J 水土保持通报英文版 %@ 1000-288X %V 39 %N 5 %D 2019 %P 242-248 %K 生态系统服务;价值当量因子;CCI-LC数据集;演化规律;地形 %K ecosystem services;value equivalence factor;CCI-LC dataset;evolution rule;terrain %X [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1.62×1011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5.53×1012元,支持服务和供给服务其次分别为1.33×1012元和5.50×1011元,文化服务价值最低为2.90×1011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。 %X [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. %R 10.13961/j.cnki.stbctb.2019.05.034 %U http://stbctb.alljournal.com.cn/stbctb/home %1 JIS Version 3.0.0