首页|甘肃省河西地区水源涵养功能与人类活动强度演变

甘肃省河西地区水源涵养功能与人类活动强度演变

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深入分析干旱半干旱区域的水源涵养功能和人类活动的时空格局及相关关系,是科学实现区域生态修复和水资源管理的必要前提.采用人类足迹指数与InVEST模型,对河西地区人类活动强度与水源涵养功能进行了定量评估,采用双变量Moran's I指数分析了河西地区人类活动与水源涵养的空间相关关系.结果表明:2010-2020年人类活动水平呈增长趋势,整体表现为东南高、西北低的分布特征.2010-2020年单位面积水源涵养量平均值为8.64mm,在2010-2015年呈上升趋势,在2015-2020年有所下降,整体空间分布表现为南高北低.2010、2015、2020年双变量Moran'sI指数分别为0.292、0.277、0.348,人类活动与水源涵养服务功能呈现出较为显著的空间正相关性.
Analysis of the spatial and temporal evolution of water resources conservation and human activity intensity in the Hexi region of Gansu Province
A thorough analysis of the spatiotemporal patterns and relationships between water conservation func-tions and human activities in arid and semi-arid regions is a necessary prerequisite for the scientific implementa-tion of regional ecological restoration and water resource management.Employing a combination of the Human Footprint and In VEST models,quantitative assessments were conducted on the intensity of human activities and water conservation functions in the Hexi region.Additionally,spatial relationships between human activities and water conservation in the Hexi region were analyzed using bivariate Moran's I and other methods.The research findings indicate that there has been a trend of increasing human activity levels from 2010 to 2020,with an over-all pattern showing higher activity in the southeast and lower activity in the northwest.The average water conser-vation capacity per unit area during the period from 2010 to 2020 was 8.64 mm.It showed an upward trend from 2010 to 2015 but declined from 2015 to 2020.The overall spatial distribution displayed a pattern of higher conser-vation capacity in the south and lower in the north.The bivariate Moran's I index for 2010,2015,and 2020 were 0.292,0.277,and 0.348,respectively,indicating a significant positive spatial correlation between human activi-ties and water conservation service functions.

human activitieswater conservationIn VEST modelspatial autocorrelationHexi region

郑诚蔚、邓晓红、李宗省、薛健、马利邦、何娟、卢书祥、邵建雄、蔡世玉、赵佩一

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西北师范大学地理与环境科学学院,甘肃兰州 730070

中国科学院西北生态环境资源研究院高寒山区同位素生态水文与国家公园观测研究站/甘肃省祁连山生态环境研究中心/干旱区生态安全与可持续发展全国重点实验室,甘肃兰州 730000

兰州大学县域经济发展研究院/乡村振兴战略研究院,甘肃兰州 730000

中国科学院大学,北京 100049

甘肃盐池湾国家级自然保护区管护中心,甘肃酒泉 736300

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人类活动 水源涵养 InVEST模型 空间自相关 河西地区

国家自然科学基金区域创新发展联合基金重点项目国家重点研发计划青藏高原综合科学考察研究项目(第二次)国家自然科学基金面上项目甘肃省自然科学基金

U22A205922020YFA06077022019QZKK04054227128821JR7RA505

2024

10.7522/j.issn.1000-694X.2023.00081

中国沙漠
中国科学院寒区旱区环境与工程研究所

中国沙漠

CSTPCD北大核心
影响因子：1.504
ISSN：1000-694X
年,卷(期)：2024.44(1)
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