Objective The water-production capacities of the first group of first five national parks in China were analyzed, and the key driving forces of each park were explored, in order to provide a scientific basis for optimizing the ecological protection and water-resource management of national parks. Methods Based on the InVEST model, the water-yielding capacities of each national park from 2000 to 2023 were assessed. The stability of the water-yielding capacities was analyzed in combination with the coefficient of variation(Cv ). The partial least squares path model (PLS-PM) was used to explore the functioning mechanism of the key driving force at each park quantitatively. Results ① From 2000 to 2023, the depths of the water-yields in the national parks generally demonstrated a fluctuating upward trend (excepte Hainan Tropical Rainforest National Park). Wuyishan National Park had the largest water-yield depth (1 609.13 mm) and the largest increase (k=9.34), while Sanjiangyuan National Park had the smallest water-yield depth (133.89 mm) and the most moderate increase (k=0.95). ② The stability of the water yield of each park was as follows: Sanjiangyuan National Park > Hainan Tropical Rainforest National Park > Giant Panda National Park > Wuyishan National Park > Northeastern Tiger and Leopard National Park. ③ The key driving forces of the water yields of the parks differed significantly, demonstrating varying patterns of influence. Precipitation was the primary positive factor affecting water yield, and was significantly higher in Sanjiangyuan National Park (0.987 9) and Hainan Tropical Rainforest National Park (0.832 8) than in the other parks. Potential evapotranspiration was generally negatively correlated with the depth of water yield and was seen to be particularly significant at Giant Panda National Park (-0.458 1) and Wuyishan National Park (-0.348 5). The impacts of vegetation cover and topography differed across the national parks. Conclusion From 2000 to 2023, the spatial and temporal patterns of water-yield capacities in the five first group national parks in China changed significantly and were relatively stable. The key driving forces of those patterns were shown to be different and spatially heterogeneous.
文献参数: 何生申, 郝媛媛, 孟哲, 等.中国首批国家公园产水能力时空格局及驱动力差异[J].水土保持通报,2025,45(4):392-401. He Shengshen, Hao Yuanyuan, Meng Zhe, et al. Spatiotemporal patterns of water-yield capacity and driving-force differences of first group of China’s national parks [J]. Bulletin of Soil and Water Conservation,2025,45(4):392-401.
为探究不同国家公园产水能力的空间异质性及其驱动机制,本研究基于生态系统服务功能视角,采用InVEST模型对中国首批5个国家公园(三江源、大熊猫、海南热带雨林、武夷山和东北虎豹国家公园)2000—2023年的产水时空格局进行定量评估。引入变异系数表征产水稳定性特征,结合偏最小二乘路径模型(partial least squares path modeling,PLS-PM)系统解析关键驱动力的作用强度差异,构建基于国家公园尺度的产水能力多维度对比分析框架,进而了解各个国家公园在水资源产出方面的独特驱动力模式。该研究有助于制定更为科学的管理与保护策略,促进生态保护与资源利用的协调发展,以期为政策制定者提供精准的地域性指导,帮助国家公园在保护与管理中采取针对性的措施,进一步优化水资源管理策略。
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