从湖泊到渔业:气候和土地利用变化对湖泊鱼类捕捞的互动影响?
Shan-E-Hyder Soomro1, Muhammad Waseem Boota2, Haider M Zwain3
1College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang, 443002, China; College of Water Conservancy and Transportation, Zhengzhou University, Zhengzhou, 450001, China.
Environmental research
|June 14, 2024
概括
气候变化和土地使用变化对湖泊渔业产生了负面影响. 生态风险评估显示,土地越来越脆弱,影响了捕鱼和水产养殖系统. 整合环境变化影响对于可持续的渔业管理至关重要.
科学领域:
- 环境科学 环境科学
- 渔业 科学 渔业 科学
- 生态生态学 生态生态学
背景情况:
- 全球变暖和不可预测的气候模式对渔业和水生生态系统产生不利影响.
- 地理信息系统 (GIS) 和遥感是评估湖泊形态特征的重要工具.
- 湖泊生态系统面临着气候和土地利用变化的综合影响的重大威胁.
研究的目的:
- 调查气候和土地利用变化对湖泊渔业鱼类捕获的相互作用影响.
- 构建一个生态风险评估框架,评估景观结构和生态系统脆弱性.
- 确定影响水产养殖系统和鱼产量的关键环境因素.
主要方法:
- 利用景观破坏,脆弱性和损失指数的组合进行生态风险评估.
- 使用GIS和遥感来分析景观结构和湖泊环境的形态变化.
- 分析了长期气候数据 (温度,降雨) 和水位变化.
主要成果:
- 在2004年至2023年期间,受中度至严重生态风险影响的土地从45%增加到76%.
- 自1950年以来,气温上升了0.4%,降水减少了6%,水位下降了4.2%.
- 土地利用,水温,降水和水深被确定为影响水产养殖的重要因素.
结论:
- 环境变化对湖泊渔业和水产养殖生产率构成重大风险.
- 生态风险评估框架对于了解和管理环境影响至关重要.
- 建议将气候变化影响纳入治理和建模,以实现渔业可持续性.
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