季风驱动的营养污染评估和来源追踪在热带山脉的头水,使用正矩阵分解
Sreelesh Raghunath1,2, Utpal Majee3, Asha Rani Gopalakrishnan Vijayakumari3
1National Centre for Earth Science Studies (NCESS), Trivandrum, India. sreeleshraghu@gmail.com.
Environmental monitoring and assessment
|February 6, 2026
概括
热带山区的生态系统面临着农业和污水的营养污染,导致的限制和高的出口. 需要紧急管理,以保护下游的水质和生态系统服务.
科学领域:
- 环境科学 环境科学
- 水文学的水文学
- 生态系统生态学生态学
背景情况:
- 热带山区的生态系统是脆弱的营养丰富由于季风水文和土地利用.
- 营养污染威胁下游的水质和生态系统服务.
- 了解营养动态对于管理这些敏感环境至关重要.
研究的目的:
- 研究表面和地下水中溶解的无机 (DIN), (DIP) 和二氧化 (DSi) 的时空变异性.
- 量化分配这些营养素的来源在蒙纳尔临界区域观测站,西加特山脉,印度.
- 评估缩潜力,并为营养管理策略提供信息.
主要方法:
- 在三个季风周期中,对地表水和地下水进行季节性监测.
- 分析溶解的无机,和二氧化的度.
- 积极矩阵因子化 (PMF) 模型用于营养源分配的应用.
- 计算和的比例,以推断营养限制和循环路径.
主要成果:
- 极高的DIN/DIP比率 (高达299:1) 表明严重的限制.
- 显著的河流DIN流量 (每年3.79×103),主要由人为输入.
- 农业肥料被确定为酸盐和酸盐的主要来源,而污水废物对酸盐和有很大贡献.
- 地下水中酸盐在季风期间达到峰值,这是由于农业的浸,而溶解的被酸盐气候变化丰富.
结论:
- 该研究量化了从这个人为压力下的头水系统出口的显著过剩和高温化潜力.
- 需要紧急的管理干预,包括优化肥料应用,沿海缓冲区恢复和改善卫生设施.
- 这些行动对于制营养污染和保护热带山区下游生态系统服务至关重要.
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