黄河上游生态脆弱区复合生态系统韧性时空分异 ——以宁夏为例

Improving the disturbance resistance and restoration of ecologically fragile areas is an important part of ecological civilization construction. The key factors affecting ecological resilience were diagnosed with the help of coupling coordination model, correlation analysis, and obstacle model. Based on the economic, social, and natural multidimensional perspective of composite ecosystem resilience assessment model, using entropy method and GIS spatial analysis, in 2009-2019 Ningxia composite ecosystem resilience difference analysis was done. The results show that: (1) The resilience of Ningxia’s composite ecosystem is on the rise, but the overall level is low, and economic resilience grows the fastest. High economic resilience is densely distributed in the north, and high social resilience is centered in the city. High natural resilience is mainly distributed in the east, south, west, and north corners, and the northern composite ecosystem is more resilient than that in the central and southern regions. (2) The coupling degree of the composite ecosystem in Ningxia is relatively high, but the coordination degree is relatively low. The coupling and coordination degree improves slowly during the research period, and most districts and counties are still in a state of serious and moderate imbalance. (3) The economic structure shows a strong positive correlation with the economic potential, infrastructure, the improvement of people’s livelihood, and the natural environment. Population, environmental stress, and economic vitality in the criterion layer have a significant impact on the composite ecosystem’s resilience, while the index layer’s total energy consumption and the number of workers in the transportation, storage, and postal sectors have a significant impact on the resilience of the majority of districts and counties. In the future, it is necessary to actively play the positive synergistic effect of various influencing factors to rapidly improve the resilience of the composite ecosystem in Ningxia, to effectively help the ecological protection and the construction of a highquality pilot zone in the Yellow River.