木兰科植物及其珍稀濒危种类的迁地保护

EX SITU CONSERVATION OF MAGNOLIACEAE INCLUDING ITS RARE AND ENDANGERED SPECIES

摘要:

应用迁地保护的原理和方法，在华南植物园引种保存木兰科植物11属125种（包括亚种、变种及杂交种），其中中国113种，国外12种，属中国重点保护的珍稀濒危植物有29种，从而建立了具有相当规模的木兰科植物种质基因库、生长情况表明，木兰科植物在华南植物园的迁地保护基本上是成功的，原产热带、亚热带地区的木兰科种类一般生长良好，尤以原产北回归线南北10°地区的种类生长最好，而原产温带或亚热带高海拔地区的种类则生长不良。

Abstract:

Eleven genera with 125 taxa, inciuding species, subspecies, varieties and hybrids of Magnoliaceae have been introduced and planted by method of ex situ conservation in South China Botanicai Garden, Guangzhou. Of the taxa conserved, 113 species originate from China, 12 species are from abroad, among them 29 species belong to the rare and endangered plants which are included in the first and second lists of protected plants of China. Thus, a great gene pool of Magnoliaceae has been set up. The introduction and ex situ conservation of Magnoliaceae species are basical1y successful. The great majority of the species from the tropics and subtropics grow well, and the species from the zone at ±10 degrees along the Tropic of Cancer grow best, but the species which originate from temperate zone or high altitude regions in the subtropics are unhealthy. A list of ex situ conservation of Magnoliaceae plants with the growth situation is given.