降水和温度变化对河流流域人为营养投入的影响:对环境管理的影响
Shuhui Zhang1, Xia Li1, Ze Ren2
1Advanced Institute of Natural Sciences, Beijing Normal University, Zhuhai, 519087, China; State Key Laboratory of Wetland Conservation and Restoration, School of Environment, Beijing Normal University, Beijing, 100875, China; Key Laboratory of Coastal Water Environmental Management and Water Ecological Restoration of Guang-dong Higher Education Institutes, Beijing Normal University, Zhuhai, 519087, China.
Journal of environmental management
|January 25, 2025
概括
达文河流域的人为和投入正在减少,受气候变化因素如温度和降水的影响. 肥料的使用仍然是主要的营养来源,并确定了管理的关键气候值.
科学领域:
- 环境科学 环境科学
- 水文学的水文学
- 气候变化研究 气候变化研究
背景情况:
- 工业革命增加了人类对河流流域的 (N) 和 (P) 输入.
- 气候变化给营养投入的动态带来了不确定性.
- 了解营养负载对于流域管理至关重要.
研究的目的:
- 分析2000-2021年达文河流域的N和P输入.
- 调查人类净输入 (NANI) 和人类净输入 (NAPI) 对气候变化因素的反应.
- 确定影响营养投入的关键气候值.
主要方法:
- 使用的净人类输入 (NANI) 和净人类输入 (NAPI) 方法.
- 分析了2000年至2021年的营养投入数据.
- 进行了营养投入和气候变量之间的定量相关性分析.
主要成果:
- 尼尼显示出下降趋势 (平均值). 17,882.34 公斤/公里2/年).
- NAPI最初呈现出增长,随后出现下降 (平均值). 5151.79 公斤/公里2/年).
- 肥料的使用是主要的来源 (约. 63.42% N, 61.88% P);降水对NANI/NAPI产生了积极的影响,而温度则产生了与滞后影响相反的影响.
结论:
- 气候变量显著影响营养素输入量,变化和组件输入.
- 确定了关键值:温度为14.1°C,降水为820mm.
- 强调人为营养负载和气候变化之间的复杂相互作用,强调在达文河流域的可持续管理.
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