中国栗属地理分布格局及红色名录评估

Assessment of the geographical distributionpattern and the Red List of Castanea in China

为了保护和利用栗属野生资源,对栗属地理分布格局进行研究。基于植物志,中国数字植物标本馆(CVH)和全球生物多样性信息网络(GBIF),统计中国各省对应的栗属物种数目,结合最新研究发布的论文专著等完成中国现有栗属物种地理分布图。中国栗属物种分布中心位于中南部,其中四川省、贵州省、湖南省、湖北省、江西省和浙江省的分布较多。锥栗分布区包括四川、云南在内等15个省,集中分布在四川、湖南和江西3个省;茅栗分布区包括甘肃、四川、云南在内等17个省(直辖市),集中分布在浙江和江西2个省;中国板栗分布区包括西藏、甘肃、四川等27个省(直辖市),集中分布在四川、陕西、湖北、重庆和贵州5个省;引种栽培的欧洲栗和日本栗分布区域较少,欧洲栗分布在四川和上海2个省(直辖市),日本栗引种栽培分布区包括云南、广西、山东等8个省,在山东省分布最多。根据空间尺度要求筛选数据,通过GeoCAT对中国栗属物种进行红色名录评估,为中国栗属的多样性研究提供重要数据。结果表明,栗属植物集中分布在我国西南、华中、华东地区,在华南和华北地区分布较少且呈零星状分布,在西北和东北地区几乎没有分布;中国栗属物种的评估结果均为无危(LC),不存在受威胁物种。

To protect and utilize the wild resources of Castanea,the geographical distribution pattern should be studied.Based on Flora,China Digital Herbarium(CVH)and Global Biodiversity Information Network(GBIF),the number of Castanea species was counted corresponding to each province in China,and the latest research published papers and monographs was applied to complete the geographical distribution map of existing chestnut species in China.The distribution center of Castanea species in China is in the central and southern parts of China,with more species distributed in Sichuan,Guizhou,Hunan,Hubei,Jiangxi and Zhejiang provinces.The distribution area of C.henryi covers 15 provinces including Sichuan and Yunnan,especially concentrated in Sichuan,Hunan,and Jiangxi;the distribution area of C.seguinii covers 17 provinces(municipalities)including Gansu,Sichuan,and Yunnan,especially concentrated in Zhejiang and Jiangxi;C.mollissima distribution areas covers Tibet,Gansu,Sichuan,totally 27 provinces(municipalities),concentrated in 5 provinces of Sichuan,Shanxi,Hubei,Chongqing and Guizhou;the introduced C.sativa and C.crenata are distributed in relatively few areas.C.crenata is distributed in 2 provinces(municipalities),i.e.Sichuan and Shanghai.C.sativa is cultivated in 8 provinces,including Yunnan,Guangxi and Shandong,with the largest distribution in Shandong.Data were filtered according to spatial scale requirements,and Red List assessment of Chinese Castanea species was conducted through GeoCAT,in order to provide important data for the diversity research of Chinese Castanea.The results show that Castanea plants are concentrated in Southwest,Central and East China,less and sporadically distributed in South and North China,and almost non-existent in the Northwest and Northeast regions.The assessment results of the species of Castanea in China are non-threatened(LC),meaning no threatened species present.