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景观格局对水质在多空间尺度上的影响武河流域,中国

Chen'guang Zhao^1,2, Peng Li^3,4, Zixuan Yan^1,2

¹State Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi'an University of Technology, No. 5, South Jinhua Road, Xi'an, 710048, Shaanxi, China.

Environmental science and pollution research international

|February 17, 2024

概括

下流域规模最好地解释了土地使用如何影响河流水质. 在流域管理中调整植被和建筑用地比例可以优化水质.

科学领域:

环境科学环境科学
生态生态学生态生态学
水文学的水文学

背景情况:

城市化和农业扩张正在降低河流水质.
了解景观土地利用对水质的影响对于诸如武河流域 (WDRB) 这样的复杂流域至关重要.

研究的目的:

量化景观模式对WDRB河流水质的多层次影响.
探索土地使用对河流水质的影响的空间和季节性变化.

主要方法:

利用了WDRB的2022年土地使用数据和22个水质样本.
采用逐步多重线性回归 (SMLR) 和冗余分析 (RDA) 来分析各种空间尺度上的关系.
研究了不同季节 (雨季与干旱季) 的相关性.

主要成果:

下流域规模成为土地使用与水质关系的最佳空间模型.
耕地,草地和建筑用地在缩小尺度时对水质产生了重大影响.
土地使用对水质参数的影响在雨季比旱季更为明显.

结论:

流域管理策略应考虑在子流域和流域尺度上的土地使用调整.
优化植被和人工土地的平衡是有效控制水质的关键.
下流域规模为管理复杂生态系统中的河流水质提供了关键的见解.

关键词:

土地使用情况土地使用情况景观格局的图案景观格局的图案河流水的质量河流水的质量空间尺度是一个空间尺度.一步一步的多重线性回归.

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