摘要
云南省为长江上游的绿色生态屏障,准确评估云南省水资源可持续发展水平对其水生态系统的科学管理和永续发展具有重要意义。利用三维水生态足迹模型对2007~2022年云南省水生态足迹进行测算,通过脱钩模型评测水资源利用与经济的脱钩效应,并结合对数均值迪氏指数法揭示近年来云南省水生态足迹变化的驱动因素。结果表明:①2007~2022年云南省水生态足迹呈现波动上升趋势,其中农业处于绝对主导地位,占比69%左右;②水生态足迹呈现东部高、西部低的空间分布格局;③水生态承载力与水生态盈亏密切相关,多地呈现水生态盈余状态;④水生态足迹广度处于相对稳定状态,水资源消耗相对稳定,水资源利用处于可持续发展状态;⑤水资源利用与经济发展脱钩效果较好,呈现强脱钩和弱脱钩两种状态;⑥经济效应对水资源消耗起正向驱动作用,技术效应对水资源消耗起负向驱动作用。研究成果可为改善云南省的人水关系、促进区域水资源开发利用与经济社会协调高质量发展提供参考。
Yunnan Province is a crucial green ecological barrier in the upper reaches of the Yangtze River.Accurately assessing the sustainability of water resource utilization in Yunnan Province is of great significance for the scientific management and long-term development of its water ecosystem.This study employed a three-dimensional water ecological footprint model to measure the water ecological footprint of Yunnan Province from 2007 to 2022.A decoupling model was used to evaluate the decoupling effect between water resource utilization and economic growth,while the Logarithmic Mean Divisia Index(LMDI)method was applied to identify the driving forces behind recent changes in the water ecological footprint.The results indicated that:①The water ecological footprint in Yunnan Province exhibited a fluctuating upward trend from 2007 to 2022,with agriculture as the dominant contributor accounting for approximately 69%;②The water ecological footprint showed a spatial distribution pattern of high in the east and low in the west;③Water ecological carrying capacity was closely linked to the ecological surplus or deficit,with many regions showing a water ecological surplus;④The breadth of the water ecological footprint remained relatively stable,indicating steady water consumption and a generally sustainable pattern of water resource use;⑤The decoupling between water resource utilization and economic development was favorable,showing both strong and weak decoupling states;⑥Economic effects played a positive driving role in water resource consumption,while technological effects played a negative driving role in water resource consumption.These findings can provide valuable insights for improving the human-water relationship in Yunnan Province,and supporting the coordinated,high-quality development of regional water resource utilization and socioeconomic growth.
作者
张旭
马巍
杨燕
韩灵新
王军亮
金超
ZHANG Xu;MA Wei;YANG Yan;HAN Lingxin;WANG Junliang;JIN Chao(Institute of Water Ecological Environment,China Institute of Water Resources and Hydropower Research,Beijing 100038,China;Chengjiang Water Resources Bureau of Yunnan Province,Yuxi 652500,China)
出处
《人民长江》
北大核心
2025年第5期113-120,共8页
Yangtze River
基金
国家重点研发计划项目(2023YFC3207802-1)
中国水科院基本科研业务费项目(WE0145B082024)
国家自然科学基金:NSFC-云南联合基金项目(U2202207)。
关键词
水资源可持续利用
三维水生态足迹模型
脱钩模型
对数均值迪氏指数法
时空分布
云南省
sustainable use of water resources
three-dimensional water ecological footprint model
decoupling model
Logarithmic Mean Divisia Index method
spatial and temporal distribution
Yunnan Province
