| 快速城镇化地区生态系统服务时空演变及权衡协同分析：以黄河下游地区为例 |
| 摘要点击 2684 全文点击 522 投稿时间：2023-09-29 修订日期：2023-11-26 |
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| 中文关键词 生态系统服务 时空特征 权衡与协同 快速城镇化 黄河下游地区 |
| 英文关键词 ecosystem services spatio-temporal characteristics trade-off and synergy rapid urbanization the lower Yellow River Region |
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| 中文摘要 |
| 作为实现我国“黄河重大国家战略”的前沿地区,黄河下游地区在加快推进城镇化进程的同时,对区域自然生态系统及生态功能造成了不可逆转的“建设性破坏”,成为流域生态保护与高质量发展的矛盾尖锐区.对此,研究基于ArcGIS和MATLAB软件,运用InVEST和RUSLE模型对1990~2020年黄河下游地区的产水量、 生境质量和土壤保持服务进行定量化评估,并分析其时空变化特征及各项生态系统服务之间的权衡协同关系.结果表明：①1990~2020年的土地城镇化进程显著加快,建设用地扩张增幅高达39.89%,其他主要地类的面积则呈现不同程度的下降.②1990~2020年,黄河下游地区县域尺度与格网尺度的分布规律较为一致；产水量和土壤保持经历了先减后增的变动趋势,产水量的空间分布格局逐渐转变为东多西少；而土壤保持和生境质量的空间分布格局在整个时期内基本保持不变,高值分布在地势较高的丘陵或山区,低值主要分布在地形和缓的平原地区.③生态系统服务间的权衡协同关系呈现空间异质性,相互作用关系以协同关系为主,存在少部分区县为权衡关系,如产水与生境质量之间的微山县和槐荫区为显著的强权衡关系.研究量化黄河下游地区生态系统服务时空演变特征,明晰生态系统服务之间的权衡协同关系,可为快速城镇化进程下的生态保护和流域治理提供科学依据. |
| 英文摘要 |
| As the forefront of implementing China's “Yellow River Major National Strategy,” the lower Yellow River area has caused irreversible “constructive destruction” to the regional natural ecosystem and ecological functions while accelerating the process of urbanization and has become an area of sharp contradiction between ecological protection and high-quality development of the river basin. Therefore, based on ArcGIS and MATLAB software, this study used the InVEST and RUSLE models to quantitatively assess water yield, habitat quality, and soil conservation services of the lower Yellow River Region from 1990 to 2020 and analyzed the spatial and temporal characteristics and their interaction relationships of various ecosystem services. The results showed that： ① In the period from 1990 to 2020, the land urbanization process accelerated significantly, with the expansion of construction land increasing by 39.89%, whereas the area of other major land types had declined to varying degrees. ② From 1990 to 2020, the distribution patterns on the county scale and grid-scale in the lower Yellow River Region were relatively consistent. The water yield and soil conservation experienced a changing trend of first decreasing and then increasing, and the spatial distribution pattern of water yield gradually shifted to more in the east and less in the west. The spatial distribution patterns of soil conservation and habitat quality remained unchanged throughout the period, with the high values distributed in the hilly or mountainous regions of the higher terrain and the low values mainly in the plains of the gentle terrain. ③ At both the grid scale and county scale, the interaction relationships between various ecosystem services had been dominated by synergy and showed significant spatial heterogeneity. Especially at the county level, strong trade-offs were occurring in a few counties. For example, the relationship between water yields and habitat quality was a significant and strong trade-off between Weishan County and Huaiyin District. The study quantified the spatial and temporal evolution characteristics of ecosystem services in the lower Yellow River Region and clarified the trade-off synergistic relationships between ecosystem services, which can provide a scientific basis for ecological protection and watershed management under the rapid urbanization process. |
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