相关实验视频

Updated: May 27, 2025

Watershed Planning within a Quantitative Scenario Analysis Framework

Watershed Planning within a Quantitative Scenario Analysis Framework

Published on: July 24, 2016

通过污染测绘,确定长江生态环境管理的关键沿海区域

Biqing Xia¹, Sisi Li¹, Zhigang Mei²

¹Hubei Provincial Engineering Research Center of Non-Point Source Pollution Control, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430077, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Key Laboratory for Environment and Disaster Monitoring and Evaluation of Hubei, Jianghan Plain-Honghu Lake Station for Wetland Ecosystem Research, Wuhan, 430077, China.

Journal of environmental management

|February 18, 2025

概括

人类活动显著改变了长江沿岸地区,影响了污染. 关键部分需要优先管理,以实现可持续的生态环境控制.

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:

沿海地区是人类活动威胁到的重要生态系统.
长江沿海地区面临着严重的人为影响,污染研究有限.
了解污染动态对于有效的生态环境管理至关重要.

研究的目的:

分析长江沿海地区 (1995-2015年) 的土地利用和营养污染变化.
确定优先考虑的生态环境管理的关键污染部分.
为控制污染指导可持续的资源分配.

主要方法:

两十年来土地利用变化分析.
应用一个修改后的出口系数模型,包含多种变量.
与水质目标相结合的污染负载映射.

主要成果:

观察到大量的土地使用变化,农业和建筑用地增加,湿地减少.
和负载的总体下降,由于城市化而局部增加.
缩的营养物质负载: ~10%的部分贡献了>40%的总负载.
识别与生态敏感区域重叠的高污染段.

结论:

人类干预已经重塑了长江沿海地区.
针对关键部分的有针对性的管理对于减少污染至关重要.
综合污染映射和水质目标增强了可持续管理策略.

关键词:

缓冲区是一个缓冲区.关键的河流部分.一个生态敏感的区域.非点源污染的非点源污染.长江长江是长江的一条河流.

更多相关视频

Studying Neurobehavioral Effects of Environmental Pollutants on Zebrafish Larvae

Studying Neurobehavioral Effects of Environmental Pollutants on Zebrafish Larvae

Published on: February 5, 2020

Clean Sampling and Analysis of River and Estuarine Waters for Trace Metal Studies

Clean Sampling and Analysis of River and Estuarine Waters for Trace Metal Studies

Published on: July 1, 2016

相关概念视频

Design Example: Analyzing Capacity Contours for Flood Risk Assessment

Design Example: Analyzing Capacity Contours for Flood Risk Assessment

Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...

Applications of GIS: Disaster Management and Emergency Response

Applications of GIS: Disaster Management and Emergency Response

Geographic Information System (GIS) technology is essential for risk identification, action prioritization, and resource optimization in critical situations like flooding and earthquakes. By integrating spatial and demographic data, GIS provides a comprehensive framework for emergency response.GIS integrates data layers, like rainfall intensity, topography, elevation profiles, and river levels, to model high-risk flood zones. These layers assess areas susceptible to flooding based on their...