使用复苏数据来预测生态系统功能在受保护和不受保护的沿海沙丘中的变化.
Greta La Bella1, Alicia T R Acosta1, Tommaso Jucker2
1Department of Science, Roma Tre University, Rome, Italy.
概括
严格保护的地区保持稳定的沿海沙丘生态系统功能随着时间的推移. 松散保护或不受保护的地区显示了生物质生产和抗入侵等功能上的变化,通常是由于非本地物种.
科学领域:
- 生态生态学 生态生态学
- 保护生物学 保护生物学
- 环境科学 环境科学
背景情况:
- 保护区旨在保护生物多样性,但它们对生态系统功能的影响不太清楚.
- 关于生态系统功能的历史数据往往很少,这阻碍了长期评估.
- 植物多样性对于维持生态系统功能至关重要.
研究的目的:
- 测试保护区如何随着时间的推移影响生态系统功能.
- 用基于特征的方法重建过去的生态系统功能.
- 为了比较不同保护制度的功能变化.
主要方法:
- 在受保护和未受保护的沿海沙丘地块中重新调查了植被.
- 测量生态系统功能 (生物质,碳,水,营养,侵蚀,入侵).
- 量化了生物多样性-生态系统功能 (BEF) 关系,并利用它们来追溯过去的功能.
主要成果:
- 不受保护的地区显示生物质,碳和水调节增加,与非本土物种有关.
- Natura 2000 地区 (松散保护) 的侵蚀控制和入侵抵抗力降低了.
- 国家保护区 (严格保护) 保持了稳定的生态系统功能,增加了对入侵的抵抗力.
结论:
- 生态系统功能仅在严格保护的地区保持稳定.
- 基于特征的方法与重新调查数据可以阻碍预测过去的生态系统功能.
- 保护战略应考虑保护区的长期功能稳定性.
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