The macro-distribution pattern and climate-driven mechanism of β-diversity of Lauraceae in my country revealed by Chengdu Institute of Biology

 Spanish ecologist Andrés Baselga proposed in 2010 that β- diversity can be decomposed into the sum of two relatively independent components, turnover and nestedness .

 In response to the above problems, Dr.

This work proves the opposite latitudinal gradient of α and β diversityof Lauraceae ; it clarifies that the high β diversity of Lauraceae detected in the Qinghai-Tibet Plateau and the border between evergreen and deciduous forests is mainly caused by high nesting ratio The lower modern average annual temperature and high climatic heterogeneity in these regions are the key to explain the high nesting causes, and their importance exceeds the climatic anomalies and climate change rates since the last ice maximum; It is proposed that the Nanpan River Basin between Ailao Mountain and Wumeng Mountain, and the Liujiang River Basin between Jiuwanda Mountain and Wuling Mountain are key protected areas with high α and β diversity of Lauraceae species .

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