Wang Si-Qi, Dong Xue-Yun, Ye Liang, Wang Hong-Feng, Ma Ke-Ping
School of Forestry, Northeast Forestry University, Harbin 150040, China.
Northeast Asia Biodiversity Research Center, Harbin 150040, China.
Plants (Basel). 2023 Jun 7;12(12):2240. doi: 10.3390/plants12122240.
As a component of the MAP project, the study of the flora in Northeast Asia (comprising Japan, South Korea, North Korea, Northeast China, and Mongolia) convincingly underscores the indispensability of precise and comprehensive diversity data for flora research. Due to variations in the description of flora across different countries in Northeast Asia, it is essential to update our understanding of the region's overall flora using the latest high-quality diversity data. This study employed the most recently published authoritative data from various countries to conduct a statistical analysis of 225 families, 1782 genera, and 10,514 native vascular species and infraspecific taxa in Northeast Asia. Furthermore, species distribution data were incorporated to delineate three gradients in the overall distribution pattern of plant diversity in Northeast Asia. Specifically, Japan (excluding Hokkaido) emerged as the most prolific hotspot for species, followed by the Korean Peninsula and the coastal areas of Northeast China as the second richest hotspots. Conversely, Hokkaido, inland Northeast China, and Mongolia constituted species barren spots. The formation of the diversity gradients is primarily attributed to the effects of latitude and continental gradients, with altitude and topographic factors within the gradients modulating the distribution of species.
作为MAP项目的一个组成部分，对东北亚地区（包括日本、韩国、朝鲜、中国东北和蒙古）植物区系的研究有力地强调了精确和全面的多样性数据对于植物区系研究的不可或缺性。由于东北亚不同国家对植物区系的描述存在差异，利用最新的高质量多样性数据来更新我们对该地区整体植物区系的认识至关重要。本研究采用了各国最近发布的权威数据，对东北亚地区的225科、1782属以及10514种本土维管植物和种下分类群进行了统计分析。此外，纳入了物种分布数据，以描绘东北亚地区植物多样性总体分布格局中的三个梯度。具体而言，日本（不包括北海道）成为物种最为丰富的热点地区，其次是朝鲜半岛和中国东北沿海地区，为第二丰富的热点地区。相反，北海道、中国东北内陆和蒙古则构成了物种贫瘠地区。多样性梯度的形成主要归因于纬度和大陆梯度的影响，梯度内的海拔和地形因素调节着物种的分布。
