Journal of Geographical Sciences, Volume. 30, Issue 6, 1005(2020)
Attribution analysis for water yield service based on the geographical detector method: A case study of the Hengduan Mountain region
Fig. 1. Location, land use type, geomorphology, and climate division of the Hengduan Mountain region
Fig. 2. Framework for the spatial heterogeneity and driving mechanism of water yield service
Fig. 3. Spatial pattern of water yield service in the Hengduan Mountain region
Fig. 4. Influence of different driving factors on spatial heterogeneity of water yield in different climatic and geomorphological zones
Table 1.
Driving factors for water yield spatial heterogeneity in the Hengduan Mountain region
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Driving factors for water yield spatial heterogeneity in the Hengduan Mountain region
Category Indicators Data type Category Indicators Data type Climate Annual average temperature Continuous Land use Land use types Discrete Precipitation Continuous SHDI Continuous Solar radiation Continuous CONTAG Continuous Actual evapotranspiration Continuous MESH Continuous Topography Elevation Continuous PLAND (cultivated land) Continuous Slope Continuous PLAND (forests) Continuous Soil Soil type Discrete PLAND (grassland) Continuous Vegetation NDVI Continuous
Table 2.
The dominant interactions between two driving factors in different climatic and geomorphological zones in the Hengduan Mountain region
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The dominant interactions between two driving factors in different climatic and geomorphological zones in the Hengduan Mountain region
Regions Dominant interactions Entire mountain region Precipitation∩actual evapotranspiration, precipitation∩land use type, precipitation∩soil type Plains Precipitation∩actual evapotranspiration, precipitation∩land use type, actual evapotranspiration∩soil type/elevation Platforms Precipitation∩actual evapotranspiration, precipitation∩land use type, actual evapotranspiration∩MESH metric Hills Precipitation∩actual evapotranspiration, actual evapotranspiration∩elevation, precipitation∩land use type Small relief mountains Precipitation∩actual evapotranspiration, precipitation∩land use type, precipitation∩soil type Medium relief mountains Precipitation∩actual evapotranspiration, precipitation∩land use type, precipitation∩soil type Large relief mountains Precipitation∩actual evapotranspiration, precipitation∩land use type, precipitation∩soil type Extreme relief mountains Precipitation∩actual evapotranspiration, precipitation∩land use type, precipitation∩PLAND(grassland) Qamdo region Precipitation∩actual evapotranspiration, actual evapotranspiration∩other factors Bomê-western Sichuan region Precipitation∩actual evapotranspiration, precipitation∩land use type, actual evapotranspiration∩other factors Sichuan region Precipitation∩actual evapotranspiration, actual evapotranspiration∩land use type Jinsha river-Chuxiong, Yuxi region Precipitation∩actual evapotranspiration, actual evapotranspiration∩land use type Northern Yunnan region Precipitation∩actual evapotranspiration, precipitation∩land use type, precipitation∩soil type
Table 3.
Water yield identification for important areas in different climatic and geomorphological zones in the Hengduan Mountain region
View tableView in ArticleTable 3.
Water yield identification for important areas in different climatic and geomorphological zones in the Hengduan Mountain region
Regions Elevation (m) Slope (°) Soil type NDVI Land use type Entire mountain region 1591-2484 25-35 Primarosol 0.78-0.94 Shrub Plains 2069-2484 0.72-0.78 Shrub Platforms 2069-2484 Primarosol 0.78-0.94 Shrub Hills 3377-3797 Primarosol 0.78-0.94 Woods, shrub Small relief mountains 2069-2484 25-35 Primarosol 0.78-0.94 Shrub Medium relief mountains 2069-2484 25-35 Primarosol 0.78-0.94 Shrub Large relief mountains 2069-2484 Primarosol 0.78-0.94 Shrub Extreme relief mountains 2924-3377 25-35 0.78-0.94 Shrub Qamdo region 3797-6808 0-5 Primarosol 0.78-0.94 Shrub Bomê-western Sichuan region 347-1591 0-5 Primarosol, anthropogenic soil 0.78-0.94 Shrub Sichuan region 347-1591 0-5 Primarosol, anthropogenic soil Shrub, other forests Jinsha river-Chuxiong, Yuxi region 1591-2069 0-5 Primarosol 0.72-0.78 Shrub Northern Yunnan region 3797-4548 25-35 Primarosol 0.78-0.94 Sparse grass
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Erfu DAI, Yahui WANG. Attribution analysis for water yield service based on the geographical detector method: A case study of the Hengduan Mountain region[J]. Journal of Geographical Sciences, 2020, 30(6): 1005
Received: Jan. 5, 2020
Accepted: Feb. 22, 2020
Published Online: Sep. 30, 2020
The Author Email: Yahui WANG (wangyah.15b@igsnrr.ac.cn)
