WU Dan, SHAO Quanqin, LIU Jiyuan, et al. Assessment of Water Regulation Service of Forest and Grassland Ecosystems in Three-River Headwaters Region[J]. Bulletin of Soiland Water Conservation, 2016, 36(3): 206-210.
DOI:
WU Dan, SHAO Quanqin, LIU Jiyuan, et al. Assessment of Water Regulation Service of Forest and Grassland Ecosystems in Three-River Headwaters Region[J]. Bulletin of Soiland Water Conservation, 2016, 36(3): 206-210. DOI: 10.13961/j.cnki.stbctb.2016.03.035.
Assessment of Water Regulation Service of Forest and Grassland Ecosystems in Three-River Headwaters Region
[Objective] To analyze changes in ecosystem water regulation services before and after the implementation of ecological projects in the Three-River headwaters region
Qinghai Province
and to evaluate the ecological effect of these projects objectively.[Methods] This paper calculated the water regulation amount of forest and grassland ecosystems with rainfall storage capacity method.[Results] The water regulation services of forest and grassland ecosystems increased in fluctuations from 1997 to 2012
with the averaged value of 1.54×1010 m3/a within the region and 430.67 m3/hm2 per unit area. The regulated amount of water in the later period(2005-2012) increased by 15.60% than that in the earlier period(1997-2004). Spatially
water regulation service capacity gradually decreased from southeast to northwest. Water regulation amount per unit area of different basins in descending order was Lantsang River basin > Yellow River basin > Yangtze River basin. Water regulation amount after the implementation of ecological projects was higher than before under both real climate conditions and mean climate conditions. In the earlier period
the water regulation service was mainly affected by regional climate change. While in the later period
it was overlaid the effects of ecological projects. In these two conditions
the linear trend of water regulation amount from 2005 to 2012 was 1.94×109 m3/10 a and 4.64×108 m3/10 a
respectively.[Conclusion] Implementation of the ecological projects had certain positive effects on improvement of water regulation service
with a contribution rate of about 23.98%.
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references
Costanza R, d'Arge R, De Groot R, et al. The value of the world's ecosystem services and natural capital[J]. Nature, 1997,387(6630):253-260.
Brauman K A, Freyberg D L, Daily G C. Forest structure influences on rainfall partitioning and cloud interception:A comparison of native forest sites in Kona, Hawai'i[J]. Agricultural and Forest Meteorology, 2010,150(2):265-275.
Pert P L, Butler J R, Brodie J E, et al. A catchment-based approach to mapping hydrological ecosystem services using riparian habitat:a case study from the Wet Tropics, Australia[J]. Ecological Complexity, 2010,7(3):378-388.
Descheemaeker K, Nyssen J, Poesen J, et al. Runoff on slopes with restoring vegetation:a case study from the Tigray highlands, Ethiopia[J]. Journal of Hydrology, 2006,331(1):219-241.
Tang Jia, Fang Jiangping, Li Ping, et al. The Function and Value of Water Conservation of Forest Ecosystem in Gongbo Nature Reserve of Tibet[J]. Asian Agricultural Research, 2012,4(1):68-70.
Huang Lin, Liu Jiyuan, Shao Quanqin, et al. Changing inland lakes responding to climate warming in Northeastern Tibetan Plateau[J]. Climatic Change, 2011,109(3):479-502.
Yi Xiangsheng, Li Guosheng, Yin Yanyu. Temperature variation andabrupt change analysis in the Three-River Headwaters Region during1961-2010[J]. Journal of Geographical Sciences, 2012,22(3):451-469.
Fan Jiangwen, Shao Quanqin, Liu Jiyuan, et al. Assessment of effects of climate change and grazing activity on grassland yield in the Three Rivers headwaters region of Qinghai-Tibet Plateau, China[J]. Environmental Monitoring and Assessment, 2010,170(1/2/3/4):571-584.
Land Use Change and Its Ecosystem Service Value Evaluation in Oasis of Jiuquan-Jinta Basin
Effects of Ecological Degradation and Restoration on Soil Conservation Function in Three Rivers Headwater Region
Spatial Coupling Between Ecosystem Services and Economy Based on Grid in Rocky Desertification Area
Temporal and Spatial Change Characteristics of Soil Conservation Function in Sourthern Jiangxi Province
Spatial Relationship Between Ecosystem Service and Residents’ Well-being in a Farming-Pastoral Zone During 2010—2020—A Case Study of Sanggan River (Shanxi Section)
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