生物多样性和河流位置的现有水平可能决定了小水电开发的变化
Qingyi Luo1, Shuyin Li2, Tsuyoshi Kinouchi3
1State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430061, China; College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100084, China; Department of Transdisciplinary Science and Engineering, Tokyo Institute of Technology, Tokyo, 152-8550, Japan.
Journal of environmental management
|April 2, 2024
概括
生物多样性水平会影响河流生态系统对小型水电厂 (SHP) 的反应. 低生物多样性地区可能会在SHP建设后增加物种丰富度,而不是高生物多样性地区.
科学领域:
- 生态生态学 生态生态学
- 环境科学 环境科学
- 淡水生物学 淡水生物学
背景情况:
- 人为威胁影响全球生态系统,影响生态功能和生物多样性.
- 了解生物多样性如何调解生态系统对跨空间梯度的人类干扰的反应至关重要.
研究的目的:
- 检查生物多样性的空间模式如何影响小型水电厂 (SHP) 对河流宏观无脊椎动物的生态影响.
- 为了研究生物多样性水平和SHPs沿海拔梯度造成的变化之间的关系.
主要方法:
- 研究了小水电厂影响的河流生态系统中的宏观无脊椎动物.
- 分析了与SHP干扰有关的海拔梯度上的生物多样性模式 (物种丰富性).
- 对主导物种和有效息地面积的评估变化.
主要成果:
- 生物多样性水平显著影响SHPs改变的程度.
- 低海拔地区的生物多样性初始较低 (<12个物种),在SHP建设后,生物多样性略有增加.
- 高海拔地区的初始生物多样性高 (>12种) 经历了不同的生物多样性变化.
- 实际息地面积的增加和主导物种的转变有助于观察到的生物多样性变化.
结论:
- 现有的生物多样性模式调解了小型水电厂对河流宏观无脊椎动物群体的生态影响.
- SHP的影响因最初的生物多样性水平和位置 (如海拔) 而有所不同.
- 建议采用特定位置的管理策略,以减轻SHP的影响和其他干扰.
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