相关实验视频

Updated: Jul 24, 2025

Laboratory-determined Phosphorus Flux from Lake Sediments as a Measure of Internal Phosphorus Loading

Laboratory-determined Phosphorus Flux from Lake Sediments as a Measure of Internal Phosphorus Loading

Published on: March 6, 2014

来自不同来源的营养负载对中国东南地区一个大浅湖的高化的影响

Balaji-Prasath Barathan^1,2, Wenting Chen¹, Yuping Su^3,4

¹Environmental Science and Engineering College, Fujian Key Laboratory of Pollution Control and Resource Recycling, Fujian Normal University, Fuzhou, 350007, People's Republic of China.

Environmental geochemistry and health

|July 3, 2023

概括

中国的湖泊缩是一个主要问题. 水的转移和非点源在很大程度上导致了桑西里湖的和污染,加剧了藻类的繁殖.

科学领域:

环境科学环境科学
临界技术临界技术
水资源管理水资源管理

背景情况:

湖泊环氧化对中国的可持续发展构成重大威胁.
关于目前主流对湖泊营养动态的影响的研究不如支流研究那么发达.
桑西柳江湖是饮用水的重要来源,面临着严重的环氧化挑战.

研究的目的:

为了量化和负载在Sanshiliujiao湖.
确定营养污染的主要来源.
评估营养投入对湖泊的生态影响.

主要方法:

在水质参数的现场观测.
运用出口系数模型进行负载估计.
分析来自水分转移和河流输入的营养物质运输.

主要成果:

总 (TP) 和总 (TN) 的负载估计分别为每年2.390和46.040.
水的转移 (TP 45.7%,TN 29.2%) 和非点源 (TP 30.2%,TN 41.6%) 是主要的贡献者.
雨季的TP和TN输入量大幅增加,东河和红河是主要的源.

结论:

水的转移显著丰富了营养投入,改变了植物浮游生物群落,并加剧了藻类的繁殖.
直接流入湖泊的河流加剧了缩和藻类繁殖的问题.
这些发现为管理桑西里江湖和与河流相连的类似湖泊的肥沃化提供了理论基础.

关键词:

欧洲化是什么意思?气气是一种气.非点源源的非点源源是指非点源的非点源源.是一种的物质.水的转移是因为水的转移.

更多相关视频

Author Spotlight: Understanding Riverine Nitrogen Impacts and Primary Productivity for Effective Nutrient Management

Author Spotlight: Understanding Riverine Nitrogen Impacts and Primary Productivity for Effective Nutrient Management

Published on: July 14, 2023

The Benthic Exchange of O2, N2 and Dissolved Nutrients Using Small Core Incubations

The Benthic Exchange of O2, N2 and Dissolved Nutrients Using Small Core Incubations

Published on: August 3, 2016

相关概念视频

Primary Production

Primary Production

The total amount of energy acquired by primary producers in an ecosystem is called gross primary production (GPP). However, of this energy, producers use some for metabolic processes, and some is lost as heat, decreasing the amount of energy available to the next trophic level. The remaining usable amount of energy is called the net primary productivity (NPP). In terrestrial ecosystems, NPP is driven by climate, while light penetration and nutrient availability drive NPP in aquatic ecosystems.

Stringent Response in E. coli

Stringent Response in E. coli

Bacterial growth is closely tied to nutrient availability, with cells proliferating exponentially under favorable conditions and entering a stationary phase when resources become scarce. This transition is mediated by a regulatory mechanism known as the stringent response, which allows bacteria to adapt to nutrient deprivation by modulating gene expression and metabolic activity.During nutrient scarcity, intracellular amino acid levels decline. It results in the accumulation of uncharged tRNAs...