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Multi-scale analysis of spatiotemporal evolution and driving factors of eco-environmental quality in a Ningxia irrigation district, China
LI Zequan, CHAI Mingtang, ZHU Lei, HE Junjie, DING Yimin, XU Fengkun, XU Xiyuan
地理学报(英文版), 2026, 36(
2
): 471-493. DOI:
10.1007/s11442-026-2456-2
Type of interaction
Range of
q
values
Nonlinear attenuation
$q({X}_{1}\cap {X}_{2})<\text{Min}\left[q({X}_{1}),q({X}_{2})\right]$
Unilinear attenuation
$\text{Min}[q({X}_{1}),q({X}_{2})]<q({X}_{1}\cap {X}_{2})<\text{Max}[q({X}_{1}),q({X}_{2})]$
Two-factor attenuation
$\text{Max}[q({X}_{1}),q({X}_{2})]<q({X}_{1}\cap {X}_{2})<q({X}_{1})+q({X}_{2})$
Mutually independent
$q({X}_{1}\cap {X}_{2})=q({X}_{1})+q({X}_{2})$
Nonlinear enhancement
$q({X}_{1}\cap {X}_{2})>q({X}_{1})+q({X}_{2})$
Table 3
Results of factors interactions
本文的其它图/表
Figure 1
Location of Ningxia irrigation district (a: Ningxia; b: irrigation district; c: sub-irrigation district; d: landscape; L: large scale, which is irrigation district; M: medium scale, which is sub-irrigation district; S: small scale, which is landscape)
Table 1
Data main information and sources
Table 2
MRSEI calculation formula
Table 4
Load and contribution rate of the PC
l
in different years
Figure 2
Classification of MRSEI index in Ningxia irrigation district of different scales (L, M and S are the same meaning in
Figure 1
.)
Figure 3
Variation and fluctuation levels of the MRSEI index across different spatial scales in Ningxia irrigation district (L, M and S are the same meaning in
Figure 2
.)
Figure 4
LISA clustering maps of MRSEI index in Ningxia irrigation district of different scales
Table 5
Theoretical models and their parameters for fitting semi-variance functions
Figure 5
Optimal fitting curves for semi-variational functions at each scale (L, M and S are the same meaning in
Figure 3
)
Table 6
Irrigation district scale ecological factor singleton detection results
Figure 6
Results of interactive detection of ecological factors
Table 7
Irrigation district scale ecological factor singleton detection results
Table 8
Sub-irrigation district scale ecological factor singleton detection results
Figure 7
Results of the interactive detection of irrigation district driving factors
Figure 8
Results of the interactive detection of sub-irrigation district driving factors
Figure 9
Local-scale detail comparison between MRSEI and RSEI
Figure 10
MGWR regression coefficients
Figure 11
Diagram of driving process on ecological quality at different scales (L, M and S are the same meaning in
Figure 5
; NDVI: normalized difference vegetation index; ET: evapotranspiration; LST: land surface temperature; NDBSI: normalized difference built-up and soil index; PRE: precipitation; TEMP: temperature; LUT: land use type; GDP: gross domestic product; DEM: digital elevation model; POP: population)
