相关实验视频
Updated: Feb 28, 2026

12:44
Watershed Planning within a Quantitative Scenario Analysis Framework
Published on: July 24, 2016
8.7K
通过统计工具和污染指数对河流水质的多维评估在印度东部的Birbhum地区
Sampurna Mondal1, Arpita Biswas1, Punarbasu Chaudhuri2
1Department of Environmental Science, University of Calcutta, Kolkata, West Bengal, India.
Environmental monitoring and assessment
|February 25, 2026
概括
由于人为因素,Birbhum地区河流的水质因地点和季节而异. 农业排水,污水和采矿污染水,特别是在阿乔河,需要有针对性的管理策略.
科学领域:
- 环境科学 环境科学
- 水资源管理 水资源管理
- 生态生态学 生态生态学
背景情况:
- 河流面临着日益增长的全球人为威胁,影响水质.
- 了解时空水质变化对于有效的河流管理至关重要.
- 伯伯姆地区的河流是面临污染挑战的重要资源.
研究的目的:
- 为了评估Birbhum地区河流的时空水质变化.
- 确定影响水质差异的关键人为因素.
- 为减轻水污染和资源管理提供基线数据.
主要方法:
- 在五大河流的十五个地点,跨越三个季节的实地调查.
- 使用权重算法水质指数 (WAWQI) 和综合污染指数 (CPI) 进行物理化学参数测量和分析.
- 统计分析包括皮尔森相关性,层次集群分析 (HCA),MANOVA和逆距离权重 (IDW) 用于空间可视化.
主要成果:
- 水质在空间和时间上有显著差异,城市和旅游区的WAWQI和CPI值"非常差".
- 阿乔伊河的水质最差,WAWQI和CPI最高.
- 农业排水,污水处理和采矿活动被确定为增加固体和营养度的主要原因.
结论:
- 人类活动对Birbhum地区的河水质量产生了重大影响.
- 需要有针对性的干预措施来解决来自农业,污水和采矿的污染问题.
- 该研究为政策制定和可持续的河流资源管理提供了必要的数据.
相关概念视频
Quality of Water
607
In concrete preparation, the quality of water is paramount as it affects the strength and durability of the concrete. Potable water is usually preferred; however, it must not have excessive sodium or potassium to prevent compromising the concrete's integrity. Water quality is typically evaluated based on impurities such as dissolved solids, chlorides, and sulfates, and its pH value is ideally between 6 and 8. Even slightly acidic natural water may be acceptable unless it contains harmful...
607
Testing Water Quality
423
When the quality of water for concrete preparation is uncertain, its impact on the setting time of cement and compressive strength of mortar is assessed by comparison with de-ionized or distilled water benchmarks. American Society for Testing and Materials (ASTM) C1602 requires the setting times to be within 90 minutes of the control, British Standard (BS) 3146:1980 allows a 30-minute variance in the initial setting, while British Standards European Norm (BS EN) 1008 specifies initial setting...
423

