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影响水质和溶解有机物质的规模效应和景观值

Xin Chen¹, Guoce Xu¹, Shun Wan¹

¹State Key Laboratory of Water Engineering Ecology and Environment in Arid Area, Xi'an University of Technology, Xi'an, 710048, Shaanxi, China.

Journal of environmental management

|February 28, 2026

概括

景观模式显著影响河流水质和溶解有机物 (DOM). 在100米沿海缓冲区内保持特定的景观指标是保护水环境的关键.

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:

河水质量和溶解有机物 (DOM) 是生态系统健康和水资源管理的关键指标.
了解景观模式对这些参数的影响对于有效的流域管理策略至关重要.

研究的目的:

确定影响丹河流域水质和DOM季节性变化的关键空间尺度和景观模式指标.
建立景观指标和水质波动之间的值关系.
确定DOM的主要人为来源及其对水质变化的贡献.

主要方法:

量化空间尺度和景观模式指标影响水质和DOM.
分析了丹河流域水质和DOM的季节性变化.
研究了景观指标对DOM组件的影响,使用光光谱指数.
评估了非点源污染对DOM的贡献.

主要成果:

100米的河岸缓冲区成为影响水质和DOM的关键空间尺度.
景观模式指标解释了水质和DOM在正常季节的最高比例变异 (70.93%).
确定的主要景观指标是土地利用强度 (L),传染指数 (CONTAG),形状指数 (SHAPE),香农的多样性指数 (SHDI) 和森林覆盖.
非点源输入是蛋白质类DOM的主要人为来源,贡献了55.4%.

结论:

保持100米沿海缓冲区内土地使用强度,传染,形状指数,多样性指数和森林覆盖的具体门对于水质保护至关重要.
有效的水生环境保护需要将规模特定的景观规划与有针对性的污染源控制相结合.

关键词:

丹河是丹河的一条河流.溶解的有机物质是有机物质.景观格局的图案景观格局的图案景观门景观门水的质量水的质量

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