DING Yuelong,GAO Teng,ZHAO Chunzi,et al.The temporal-spatial pattern and coupling coordination degree of water resources carrying capacity in the Harbin-Changchun urban agglomeration[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2023,62(02):146-155.
DING Yuelong,GAO Teng,ZHAO Chunzi,et al.The temporal-spatial pattern and coupling coordination degree of water resources carrying capacity in the Harbin-Changchun urban agglomeration[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2023,62(02):146-155. DOI: 10.13471/j.cnki.acta.snus.2022D011.
The temporal-spatial pattern and coupling coordination degree of water resources carrying capacity in the Harbin-Changchun urban agglomeration
To objectively understand the current situation of water resources carrying capacity in the construction and development of Harbin-Changchun urban agglomeration and ensure the sustainable development of water resources development and utilization
this study constructs the evaluation system of water resources carrying capacity of Harbin-Changchun urban agglomeration and adopts the improved entropy weight TOPSIS model
spatial autocorrelation analysis and coupling coordination degree evaluation model to comprehensively evaluate the spatial and temporal patterns of water resources carrying capacity of Harbin-Changchun urban agglomeration and the coupling coordination degree among subsystems from 2012 to 2019. The results show that: 1) The water resources carrying capacity of Harbin-Changchun urban agglomeration shows a trend of decreasing first and then increasing
and the overall is in reasonable state of water resources
and water resources endowment is the main factor affecting the improvement of water resources carrying capacity. 2) The spatial distribution of water resources carrying capacity of cities in Heilongjiang Province is better than cities in Jilin Province. 3) Among the subsystems in the urban agglomeration
the socio-economic subsystem score (0.22) is the highest
followed by the water resources subsystem (0.18) and the ecological environment subsystem (0.07) is the lowest. The score of the water resources subsystem varies greatly among cities and is mainly influenced by per capita water resources
water production modulus
and annual precipitation. 4) There is a strong positive correlation between the water resources carrying capacity of urban agglomerations and the coupling coordination degree
and the average coupling coordination degree of the Harbin-Changchun urban agglomeration is 0.37
with a low overall level and in a state of slight imbalance.
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