揭示了湖泊管理的隐藏负担:中国东平原湖区的沉积物储池,中国
Chenxue Zhang1,2, Yanjie Zhao3, Min Xu4
1State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China.
Environmental science and pollution research international
|October 31, 2023
概括
在中国,含量很高.
科学领域:
- 环境科学 环境科学
- 地质化学 地质化学
- 生态生态学 生态生态学
背景情况:
- 湖泊对全球循环和生态系统健康至关重要.
- 了解污染和储存对于恢复湖泊缩至关重要.
- 中国的东平原湖区 (EPL) 面临着重大的生态挑战.
研究的目的:
- 在中国EPL的37个湖泊的水和沉积物中调查总度 (TPC).
- 为了评估这些湖泊中污染的程度.
- 估计湖泊沉积物中的储存量及其对管理的影响.
主要方法:
- 从EPL的37个湖泊收集了水和沉积物样本.
- 在水 (TPCW) 和表面沉积物 (TPCSS) 中测量了总度.
- 量化湖面积和数量,以估计沉积物中的总储存量.
主要成果:
- 在EPL湖中发现了高平均TPCW (0.11毫克·L-1) 和TPCSS (869.85毫克·公斤-1).
- 超过56%的湖泊显示严重的水污染和70%严重的沉积物污染.
- 在EPL湖沉积物中估计的总储存量 (0-30厘米) 约为4.87 ± 2.08 Tg.
结论:
- 在EPL湖泊中,污染严重,影响水和沉积物.
- 水和沉积物之间的强烈正相关性表明内部营养循环.
- 沉积物池存在重新污染的风险,必须在管理策略中考虑.
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