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景观格局对河度的影响青山湖头部流域流域

Zi-Qing Yang¹, Jia-Ni Xu¹, Meng-Xiao Xing¹

¹College of Environment and Resources/College of Carbon Neutrality, Zhejiang A&F University, Hangzhou 311300, China.

Ying yong sheng tai xue bao = The journal of applied ecology

|December 15, 2025

概括

优化水源流域的景观模式是控制污染和改善水质的关键. 景观加权负载指数 (LWLI) 显著影响总 (TN) 度,特别是在高流量时期.

科学领域:

环境科学环境科学
水文学水文学
生态生态学生态生态学

背景情况:

头水流域的流域对于水源保护至关重要.
了解景观与水质之间的关系对于可持续发展政策至关重要.
非点源污染对河流度产生重大影响.

研究的目的:

量化评估景观模式对河流度在河头流域流域的影响.
为了确定影响不同流量时期水平的占主导地位的景观因素.
根据景观模式评估水质恶化的风险.

主要方法:

部分最小平方回归 (PLSR) 来建模度.
非参数变化点分析和统计评估的引导方法.
使用景观加权负载指数 (LWLI) 和其他指标分析景观模式.

主要成果:

在子流域中观察到景观优势和碎片化的显著差异.
确定LWLI是影响全年总 (TN) 度的占主导地位的景观因素.
不同的景观特征 (建成土地,草地,森林土地,最大补丁指数) 在高,正常和低流量期间对TN产生不同的影响.
超过0.35的LWLI在高流量时期增加了突然TN度变化的风险.

结论:

优化景观模式,特别是管理LWLI和土地使用比例,可以有效控制非点源污染.
河头流域的可持续景观管理对于保持和改善水质至关重要.
积极的景观规划可以减轻水质恶化的风险,保护水资源.

关键词:

景观图案景观图案景观图案景观加权负载指数污染污染污染非参数变化点分析部分最小平方回归.

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