Attribution analysis for water yield service based on the geographical detector method: A case study of the Hengduan Mountain region

Erfu DAI; Yahui WANG

doi:10.1007/s11442-020-1767-y

Journals >Journal of Geographical Sciences >Volume 30 >Issue 6 >Page 1005 > Article

Journal of Geographical Sciences
Vol. 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

Erfu DAI^1、2 and Yahui WANG^、*

Author Affiliations

¹. Lhasa Plateau Ecosystem Research Station, Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China

². University of Chinese Academy of Sciences, Beijing 100049, China

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DOI: 10.1007/s11442-020-1767-y Cite this Article

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 Copy Citation Text

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Fig. 1. Location, land use type, geomorphology, and climate division of the Hengduan Mountain region

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Fig. 2. Framework for the spatial heterogeneity and driving mechanism of water yield service

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Fig. 3. Spatial pattern of water yield service in the Hengduan Mountain region

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Fig. 4. Influence of different driving factors on spatial heterogeneity of water yield in different climatic and geomorphological zones

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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
Topography	Slope	Continuous		PLAND (forests)	Continuous
Soil	Soil type	Discrete		PLAND (grassland)	Continuous
Vegetation	NDVI	Continuous

Table 1.

Driving factors for water yield spatial heterogeneity in the Hengduan Mountain region

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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 2.

The dominant interactions between two driving factors in different climatic and geomorphological zones in the Hengduan Mountain region

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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