Bacterial OTU taxonomic annotations and abundance statistics of six typical terrestrial ecosystems of China

Bacterial OTU taxonomic annotations and abundance statistics of topsoil (0-20 cm) of six typical terrestrial ecosystems of China which are located on the east and west sides of Hu-Line were the areas of our scientific focus: i) the karst area of southwestern China (KS), ii) the agro–pastoral ecotone of southwestern China (AS), iii) the Qinghai-Tibet Plateau (QT), iv) the Loess Plateau (LP), v) the forest–grassland ecotone (FG), and vi) the deserts of Hexi Corridors (HC), all account for an total area of approximately 2.61×10⁶ km².

本数据集聚焦于中国胡焕庸线（Hu-Line）东西两侧6类典型陆地生态系统的表层土壤（0~20 cm）细菌操作分类单元（Operational Taxonomic Unit，OTU）分类学注释与丰度统计信息。所关注的研究区域包括：
i) 中国西南喀斯特区域（karst area，KS），
ii) 中国西南农牧交错带（agro–pastoral ecotone，AS），
iii) 青藏高原（Qinghai-Tibet Plateau，QT），
iv) 黄土高原（Loess Plateau，LP），
v) 林草交错带（forest–grassland ecotone，FG），
vi) 河西走廊荒漠区域（deserts of Hexi Corridors，HC）；
上述所有研究区域的总面积约为2.61×10^6 平方千米。