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土地使用变化对宁平原下水深的影响,中国

Zhong Lu^1,2, Jinliang Zhang^1,2, Chaoqun Li^3,4

¹Yellow River Engineering Consulting Co., Ltd, Zhengzhou, 450003, Henan province, China.

Scientific reports

|October 18, 2024

概括

气候变化对流水深度的影响要大于南平原的土地使用变化. 这项研究量化了这些影响,为水资源管理提供了洞察力.

科学领域:

水文和环境科学水文和环境科学
生态系统动力学生态系统动力学
气候变化影响评估

背景情况:

流水深度对生态系统健康至关重要,受到气候变化和人类活动的影响.
之前的研究主要集中在气候变化影响上,忽视了土地利用变化的具体机制和流水深度.
了解这些机制对于有效的水和土地资源管理至关重要.

研究的目的:

模拟和评估气候和土地利用变化对1980年至2020年南平原下水深的影响.
量化气候变化和土地利用变化对流水深度变化的不同贡献.
分析特定的土地使用类型对流水深度的时空影响.

主要方法:

使用MIKE SHE/MIKE 11模型进行表面流水模拟.
应用了流量减少方法来评估气候和土地利用变化的影响.
采用时空地理加权回归来量化土地利用变化影响.

主要成果:

40年来,南平原的平均流水深度为36.26毫米,显示出"增加-减少-增加"的趋势.
气候变化对排水深度的影响比土地利用变化更大.
具体的土地利用变化显示出多种效应:建筑,干燥和无人居住的土地增加了排水量,而沼泽,田和森林土地减少了排水量.

结论:

气候变化是南平原流水深度变化的主要驱动因素,超过了土地利用变化的影响.
土地利用变化,特别是建筑和干旱土地的增加,大大增加了下水深度.
这些发现为优化土地资源治理和提高水资源利用效率提供了基础.

关键词:

影响机制的影响机制.土地使用/覆盖变化 (LUCC)迈克·谢 / 迈克 11 型号流水的深度流失.宁平原是一个平原.

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