机构地区:[1]中国科学院地理科学与资源研究所,北京100101 [2]中国科学院大学资源与环境学院,北京100049 [3]山东师范大学地理与环境学院,济南250358 [4]河南大学黄河文明与可持续发展研究中心,开封475001
出 处:《生态学报》2024年第15期6499-6512,共14页Acta Ecologica Sinica
基 金:教育部人文社会科学重点研究基地重大项目(22JJD790015);国家自然科学基金项目(42171210);山东省高等学校“青创团队计划”(2022KJ248)。
摘 要:黄河流域作为中国人口与产业集聚区,其水资源短缺、生态退化、环境污染等问题严重,研究该区域的人地关系对于推进生态保护和高质量发展国家战略具有重要意义。然而面向国土空间规划、生态环境网格化治理等现实需求,目前黄河流域人地关系还缺乏精细栅格尺度研究。使用人类足迹(HF)和生态系统质量指数(EQI)作为人地系统的代理变量,基于Sen+MK趋势检验识别了2000—2020年1km×1km栅格尺度下黄河流域人类活动和生态系统质量时空演化特征,运用四象限图解法量化了两者协调与冲突关系,基于多种回归模型解析了黄河流域人类活动对生态系统质量的影响程度和时空异质性。结果表明,2000—2020年黄河流域EQI和HF整体均呈上升趋势,其中显著上升区域前者占比64.2%,后者占比49.2%。黄河流域人地关系整体呈现协调演化态势,人地协调演化区主要分布在黄土高原、太行山西麓和宁夏沿黄等地区;人地冲突区域仅占7.7%,主要分布在城镇化快速推进地区和上游生态脆弱区。在控制了气温、降水、日照、海拔等自然因子后,HF对EQI仍有显著负向影响,整体看HF每增加1%,EQI将下降0.067%。但这种影响存在时空异质性,人类活动对黄河流域中下游EQI的负向影响更加显著,20年间整个流域的HF对EQI的负向影响呈现缓慢增加态势。为栅格尺度的人地关系研究提供了新的方法论,研究结果为黄河流域人与自然和谐共生的政策制定提供决策支持。The Yellow River Basin,a pivotal concentration area for China′s population and industry,suffers from acute water shortages,ecological decline,and environmental pollution.Investigating the region′s human-nature interaction is crucial for enhancing ecological conservation and sustainable development.However,research on this relationship at a grid scale,essential for national spatial planning and ecological management,remains insufficient.In this study,we utilized the Human Footprint(HF)and the Ecosystem Quality Index(EQI)as indicators to represent the human-nature interface.Employing the Sen+MK trend analysis,we delineated the spatio-temporal dynamics of human activities and ecosystem quality across the basin at a 1km×1km grid scale from 2000 to 2020.The four-quadrant diagram was applied to quantify the synergies and conflicts between the two.Moreover,various regression models were used to evaluate the degree and spatio-temporal variability of human impacts on ecosystem quality within the basin.The study revealed that both the EQI and HF in the Yellow River Basin exhibited an overall upward trend from 2000 to 2020.Areas with significant increases in EQI accounted for 64.2% of the region,while those for HF comprised 49.2%.The basin exhibits a trend of coordinated human-nature evolution.Coordinated interactions predominantly occur on the Loess Plateau,the western Taihang foothills,and along Ningxia′s Yellow River areas.Conflict zones,constituting only 8%,are mainly in rapidly urbanizing regions and upstream areas with delicate ecosystems.Controlling for natural variables like temperature,precipitation,sunlight,and elevation,HF significantly and negatively impacts the EQI,with each 1% increase in HF decreasing EQI by 0.067%.This effect exhibits spatio-temporal heterogeneity,being more pronounced in the middle and lower Yellow River Basin.The overall negative influence of HF on EQI is gradually intensifying.The study introduces a novel methodology for grid-scale human-nature interaction research and informs poli
关 键 词:黄河流域 人地关系 人与自然和谐共生 人类足迹 生态系统质量 冲突与协调
分 类 号:X24[环境科学与工程—环境科学]
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