Abstract:

Manglietia calcarea X.H.Song is endemic rare and endangered plants in Guizhou. In order to understand the resource status of Manglietia calcarea X.H.Song in Maolan National Nature Reserve, the author investigated the status of the distribution of the Manglietia calcarea X.H.Song by using line transect survey method. The results showed that: Manglietia calcarea X.H.Song was narrow distribution and still rare, founded only 8 distribution points total 10, had been endangered. They were mainly distributed in Dongduo, Dongchang, Yaozhai and Kaji, where the elevation were between 650-820 m, which were col, mountainside, depression, trough the secondary forest, idle land side, under the bamboo forest and jungle. According to the feature of the geographical distribution and resource status of the Manglietia calcarea X.H.Song in Maolan Nature Reserve, the author also analyzed the reasons of endangered and investigation the effective protection measures.