Global S&T Development Trend Analysis Platform of Resources and Environment
Unexpectedly Large Number of Trees Populate the Western Sahara and the Sahel | |
admin | |
2020-10-14 | |
发布年 | 2020 |
语种 | 英语 |
国家 | 美国 |
领域 | 气候变化 |
正文(英文) | The number of trees inhabiting the Western Sahara, the Sahel and the Sudanian zone has exceeded the expectations of scientists, with more than 1.8 billion having been located thanks to an international collaboration including researchers from the CNRS*. High-resolution remote sensing made it possible to gather a multitude of satellite images of these areas, which were then analysed by applying an artificial intelligence pattern recognition method. According to the study, which focused on trees with a crown size greater than 3m², isolated trees cover an area of 1.3 million km², about 2.5 times the surface area of France. Scientists also noted that crown size and tree density depends closely on the climatic regime and land use. These trees make a major contribution to local resources, biodiversity and carbon storage, as well as playing a crucial role in dry tropical ecosystems and agrosystems. This work, published on 14th October in Nature, highlights the possibility of creating an inventory of all the non-forest trees on the planet, in order to assess their contribution to environmental issues.
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Journal Reference:
Cite This Page: CNRS. "Unexpectedly large number of trees populate the Western Sahara and the Sahel." ScienceDaily. ScienceDaily, 14 October 2020.
CNRS. (2020, October 14). Unexpectedly large number of trees populate the Western Sahara and the Sahel. ScienceDaily. Retrieved October 15, 2020 from www.sciencedaily.com/releases/2020/10/201014114617.htm
CNRS. "Unexpectedly large number of trees populate the Western Sahara and the Sahel." ScienceDaily. www.sciencedaily.com/releases/2020/10/201014114617.htm (accessed October 15, 2020).
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URL | 查看原文 |
来源平台 | Science Daily |
文献类型 | 新闻 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/298828 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | admin. Unexpectedly Large Number of Trees Populate the Western Sahara and the Sahel. 2020. |
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