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中国近乎危植物的分布和保护
Qin Liu1,2, Tian-Tian Xue1,3, Xiao-Xia Zhang1,3
1State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China.
Plant diversity
|July 3, 2023
概括
中国的近危 (NT) 植物在保护中被忽视,其关键的多样性热点在西南部和南部. 目前的自然保护区不足以保护这些重要的,经常是特有物种,突出了迫切的保护差距.
科学领域:
- 保护生物学 保护生物学
- 生物多样性热点是生物多样性的热点.
- 植物分类学和生态学
背景情况:
- 接近危 (NT) 植物物种面临着人类活动和气候变化带来的重大风险,但在保护战略中经常被忽视.
- 这些NT物种,特别是特有物种和狭窄范围的物种,具有相当大的保护价值,需要专注的关注.
研究的目的:
- 确定中国各地近乎危植物的多样性热点.
- 评估现有自然保护区在保护这些已识别的热点和物种方面的有效性.
- 突出保护差距,并为NT植物的未来保护优先事项提供信息.
主要方法:
- 在中国利用了2442种NT植物种的98,419个发生点.
- 采用物种丰富性,物种互补性和加权的特有性分析来确定多样性热点.
- 根据这些热点和物种分布,评估了当前自然保护区的覆盖面.
主要成果:
- NT植物的多样性热点集中在中国西南部和南部.
- 现有的自然保护区只保护了35.87%的已识别的热点和71.5%的NT植物物种.
- 在中国西南部,包括四川,云南,广西和海南等地区,发现了显著的保护差距.
结论:
- 临灭绝的植物,特别是特有植物和范围狭窄的植物,对于保护至关重要,需要更多的关注.
- 目前的保护区不足以保护NT植物多样性热点,需要战略扩张和改进管理.
- 持续评估物种的危状况对于适应性保护规划和有效的目标定位至关重要.
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