机构地区:[1]新疆农业大学水利与土木工程学院,乌鲁木齐830052 [2]新疆水利工程安全与水灾害防治重点实验室,乌鲁木齐830052 [3]中国科学院新疆生态与地理研究所,乌鲁木齐830011
出 处:《环境科学》2025年第4期2385-2397,共13页Environmental Science
基 金:阿克苏河流域山水林田湖草沙一体化保护和修复研究项目(AKSSSXM2022620,E3410103);国家重大科技项目(2021xjkk02003)。
摘 要:阿克苏河流域作为“一带一路”倡议中的重要节点,其生态保护和可持续发展对于该区域发展具有深远影响.探明阿克苏河流域生态系统服务价值(ESV)时空演变特征及其驱动要素,对优化区域生态系统,促进生态建设与经济协调发展,以及推动人与自然和谐共生具有重要意义.基于阿克苏河流域2000~2020年5期土地利用数据,采用土地利用转移矩阵、修正后的当量因子法、敏感性分析法、ESV权衡协同分析及地理探测器等多种方法,分析研究区ESV的时空演变特征及其驱动因素,结果表明:①2000~2020年,阿克苏河流域80%以上的土地面积由草地和未利用土地组成,是主要的土地利用类型;转出面积最大的为草地(1373.22 km^(2)),转入面积最大的为耕地(2141.51 km^(2)).②2000~2020年,研究区ESV呈波动下降趋势,2020年ESV总值较2000年减少了15.96%;ESV总体上呈由北向南逐渐减少的趋势.③协同关系为研究区生态系统服务功能之间的主要关系,权衡关系主要表现在食物、原料生产与其他服务功能之间.④气温和降水是影响研究区ESV变化的主导因子,且气候因子对ESV的影响力普遍较高;交互探测结果表明多因子协同作用共同影响了阿克苏河流域ESV的变化,年均降水、气温和地温之间的交互作用q值普遍较高(最高达0.54),且任意两驱动因子之间的交互作用要强于单个因子的作用.The ecological preservation and sustainable development of the Aksu River Basin,a key node in the“Belt and Road”plan,have a significant influence on the regional economy.Investigating the spatial and temporal evolution of ecosystem service value(ESV)and the factors that drive it in the Aksu River Basin is crucial for maximizing the health of the regional ecosystem,encouraging the coordinated growth of the ecological economy and construction,and fostering peaceful coexistence between humans and the natural world.The spatiotemporal evolution characteristics and driving factors of ESV in the study area were analyzed using the land use transfer matrix,revised equivalent factor method,sensitivity analysis,ESV tradeoff collaborative analysis,and geographic detector based on five periods of land use data from 2000 to 2020 in the Aksu River Basin.The outcome demonstrates that:①Between 2000 and 2020,grassland and unused land were the main land use types in the Aksu River Basin,accounting for more than 80%of the total land use area.The largest outflow area was grassland(1373.22 km^(2)),while the largest inflow area was arable land(2141.51 km^(2)).②The ESV in the study area exhibited a fluctuating downward trend from 2000 to 2020,with the total value of ESV in 2020 decreasing by 15.96%compared to that in 2000.The ESV generally exhibited a declining trend from the northern region to the southern region.③The synergistic relationship was the primary association among ecosystem service functions in the study area,while the tradeoff relationship primarily existed between food,raw material production,and other service functions.④Temperature and precipitation were the dominant factors affecting the change of ESV in the study area,and the influence of climatic factors on ESV was generally high.The interactive detection results showed that the multi-factor synergistic effect affects the change of ESV in the Aksu River Basin.The q value of the interaction between annual precipitation,temperature,and ground temperature was
关 键 词:土地利用 生态系统服务价值(ESV) 时空演变 地理探测器 空间分异
分 类 号:X171.1[环境科学与工程—环境科学]
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